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T540p Display working but no backlight

Q: T540p Display working but no backlight

My thinkpad T540p Display backlight is not working, when i connect to External display am getting output. any way to fix the isssue ? the laptop is under warranty.

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RELEVANCY SCORE 200
Preferred Solution: T540p Display working but no backlight

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RELEVANCY SCORE 102

Hi guys! I'm really having a bad time, my laptop is currently unusable since the backlight is not working on either the TN panel or IPS panel that I have for it. when I first got the laptop it worked fine, allthough it ran a bit hot 65c idle. So I decided to change the thermal paste for with some Arctic Silver MX-4 and the idle temps dropped to 43c idle, a very nice improvement if you ask me. Then I decided to change the awful TN panel that it came with since I've done that a thousand times before with other laptops, so I went ahead and ordered one from eBay (it came from UK) since I did not want to risk some china panel potentially breaking my precious new laptop. when I got the new panel, I turned off the laptop then removed the battery and pressed the power button for 30 seconds, then porceeded to take the bezel off and remove the "old" working display and install the new display. No problem.... or so i thought... There was only a black screen when i booted it back up!turns out that the backlight was not working (I was shining with a flashlight and getting a picture on the monitor itself)I then did the same procedure and replaced the "new" monitor(IPS) with the "old"(TN) still no backlight... I really needed it for my school, so I went to a local PC-repair shop that could fix things such as laptop. thay said that there was 3 possibilities:broken monitorbroken motherboard (GPU is soldered on motherboard)borken cable from motherboard t... Read more

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RELEVANCY SCORE 72

My internal display just stopped working for no reason with Windows 10. The external monitor still works fine though.I checked the Device manager, the internal display had disappeared from the Monitors section, only my external monitor was listed there.It had happened twice. I brought the display back the 1st time after I uninstall the monitor driver and re-installed the latest driver from Lenovo website, but this time it's already with the latest driver and the same trick did not work.Luckily I still have a clone image of the system with Windows 8.1. Once I switched back to Windows 8.1 the internal display worked fine so I think it has to be a driver issue.The display adpater is Intel HD 4600. The internal monitor is the original HD display that came with the laptop. Please help. 

A:T540p Internal Display stopped working

Hi Paulgti,
 
Welcome to Lenovo Forums.
 
Consider updating the Intel HD Graphics from the Intel Website. Also, check if display fine when you connect with external monitor.
 
Please update the following
Chipset
BIOS
Firmware
 
Let us know how you get on.
 
Regards,
Shashi
 
Tap that Kudos button if I helped  If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! 

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RELEVANCY SCORE 70

I have a T540p and Im wondering if it possible to upgrade the keyboard to a backlit keyboard ?The model # is 20BFS2JD00.

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RELEVANCY SCORE 69.2

Good evening, I've got a brand new T540p since 2 days. First, I installed Windows 8.1 from the Recovery Media and after the Windows and Lenovo Updates I installed all the Software I need.Yesterday I noticed, that I have to push Alt+Fn+F4 to close a Window. Or I have to push Fn+F3 for a Searchwindow.Can anyone tell me, if it's possible, to change the Function of the F-Buttons?And is it possible, to turn on the Keyboard Backlight all the time and not for a few Minutes while I'm typing? Kind RegardsManuel













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A:T540p Keyboard Backlight and fn-Buttons

You can change the FN-key functions by pressing FN + Esc (activates FNLock).

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RELEVANCY SCORE 66.8

Hey everyone,  I have a little problem with my notebook. I have just make a service ticket for my notebook because the display stopped to work. When the IT-service changed the display to a new one, the new one did work but without backlight. He tried to connect with an another display cable, but it was the same problem. What now? I have read something about backlight inverter, but I don't know if that is the problem. He took the new display and left my home only with that I need to wait for an another new display... He only checked the new display. Nothing else. I know that I need to wait, but what can be the possible solution? 

A:X250 New Display, Backlight not working

There is no inverter.  Inverters are related to the old CCFL backlights that needed A/C current.  There is no way to diagnose without seeing it, but if the backlight came on before the screen was changed, my guess is that whoever changed the display didn't disconnect everything and drain capacitors so he or she blew the fuse on your motherboard.

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RELEVANCY SCORE 66

Hi Everyone! My display backlights stopped working. I'm still able to see what is on the screen when i put my cellphone flashlight on the screen but it's really hard to see anything. From what I read online it might be just a fuse or the display itself. I was not able to locate the fuse on the motherboard, if someone can help me find the fuse would be great. At first I was thinking of ordering the display but some people changed the display and the problem was still there. Any advise would be appresiated.P.S. The laptop is already completly dissasembled  Thanks.

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RELEVANCY SCORE 64.8

Hi, I have notebook HP 655 with Windows XP SP3, NetFramework 3.5 
My FN keys for changing intensity of backlight of screen not working. Any other FN keys are working correctly. 
I have the nevest driver for AMD Radeon HD 7310 graphic card which is used in this laptop, I also tried HP Hotkey Support and HP Quick Launch Button - this software just add an information panel for changing volume of sound.
Microsoft Support said me that i have to contact HP official support, and HP said me that Windows XP is no more supported. I saw on some forums that many people have the same problem but no solved.
Using Catalist software i can change brightness (it looks very bad) but no backlight intensity. 
I'm helpless now. I tried everything. In windows 7 this functions worked correctly but this computer in not so good for using better system then xp it was wery slow. Please help me. 
Backlight intensity is automaticly changing for example when I plug or unplug the charger. So just these keys not working. I need to change the intensity for saving my battery and my eyes, because the intensity is on maximum with charger. 

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RELEVANCY SCORE 57.6

Setup:Win8.1 EnterpriseThinkpad T540p on UltraDock with its screen in 1920x1080 resolution as secondary monitorLenovo 24" in 1920x1080 resolution external monitor as primary monitor Workaround:Flip the resolution to 1600x900 then to 1920x1080 again OR undock and redock Thinkpad.  Done so far:I've tried upgrading and downgrading the Intel driver to no avail. The latest driver can't be installed because of an error that I don't have appropriate system - managed to install it but the issue persist. Currently:Running on driver version 10.18.10.6958.   Issue:When moving windows to the secondary monitor, the screen resolution behaves like it's running in 1600x900 when in fact it's set to 1920x1080.  Is there any permanent fix?

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RELEVANCY SCORE 56.4

Hi community, we are using several Thinkpads for years mostly without issues. But for a while now we have to experience issues with our T540p's in combination with pro and ultimate docks. And lately we also run into the same issue with a T570.Here our configuration, there are two external displays connected to the docking and one of them is the primary screen.And this is the issue: When we undock the T540p, the internal display should switch to be the primary and only display, but it doesn't. It seems to be that the T540p is still thinking to have external displays connected. The internal display is all black but I can move the mouse pointer from the right into the screen and can also move it out of the screen by pulling it downwards.All windows are opened on the virtual screen,which means I cannot see any configuration windows to change display behavior. Pressing Fn+F7 and up or down arrow blind does not change anything.It does not matter if I undock the T540p while it is running, or if I shutdown the system before undocking. When this error occurs it also does not matter if I connect an external display to the T540p directly, I still cannot see anything. To set the internal display to be the main display before undocking does not change the behavior anyway.If I put the T540p into the docking again, mostly everything is fine. The two external displays are running as before. If it was a desktop PC that would be fine but it is a notebook and we need to carry it with us an... Read more

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RELEVANCY SCORE 56

Hi,I'm having some trouble with the t540p in the UltraDock. I have a setup with 3 displays:- internal- external on DVI- external on DisplayPortThe external ones are connected to the UltraDock. I've got the problem, that the external monitor on the DVI-Port blanks frequently (about every 15min) for 2-3 seconds.Less frequently (about once every 1-2 hours) all external Monitors blank for about 5-10 seconds and you can hear in the speakers the Windows sound for disconnecting and reconnecting devices. Another abnormality I discoverd is, that when I use the t540p without the Dockingstation (but a power supply connected) the screen dims down to "battery level" from time to time (also only for some seconds) and the Battery-Symbol changes from "mains operation" to "battery operation" while the brightness is dimmed.This happens with both power supplies (the one shipped with the t540p and the one shipped with the UltraDock) Maybe these effects could be related somehow?Does any of you experience the same issues or has got any clue what could be the problem here? Best Regards,Andre










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A:T540p/T440p+UltraDock+external display issues

Same problem, sill no idea how to fix it...

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RELEVANCY SCORE 56

Since I discovered my Thinkpad T540p has the standard display which is not that great for designing (colours look totally less true and in and escpecially on different angles) I was looking around for an IPS screen. Is it possible to just swap my screen for the IPS 3K version? 

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RELEVANCY SCORE 53.2

I have a T540pModel number 20BE003AUS Running windows 7 pro I replaced the keyboard with a backlit keyboard from ebay. "US backlit keyboard US 04Y2465 04Y2387" The backlight works. But the keyboard doesn't type. The space bar turns the backlight on and off. Instead of making a space. The function key works. The number lock works. Caps lock doesn't work. None of the letters work. The pointing stick works. I am baffled. I took it off and checked the connections. Same thing. I am sure it's something simple I'm missing.

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RELEVANCY SCORE 53.2

Hi, I have a T540p with Windows 8.1. I did all configurations needed, Windows is working. Also internal Microphon and F4 key were working fore month.Problems:- Internal Microphon stopped working- F4 key does not function any moreHow can I solve these problems? Thanks a lot!

A:T540p: Microphone & F4 Key stopped working

This update might fix your hotkey issue Hotkey Features Integration for Windows 10 (32-bit, 64-bit), 8.1 (32-bit, 64-bit) - ThinkPadReadme.txthttps://download.lenovo.com/pccbbs/mobiles/r09vu09w.txt Hotkey Features Integration File Downloadhttps://download.lenovo.com/pccbbs/mobiles/r09vu09w.exe To check you microphone, right click on the speaker icon in lower right of the task bar, and select recording devices.   Once the recording device window opens, make sure that the microphone is enabled, and if not, right click on the microhpone and select enable.    If the Microphone is not shown, right click anywhere in the window, and select "show disabled devices" and then enable. Good Luck 

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RELEVANCY SCORE 52.8

Is the T550 keyboard the same as T540p/W540 ?

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RELEVANCY SCORE 52.8

Hello, I use Windows 10 with my ThinkPad T540p and try to connect and use an USB3.0 Camera with fast live view (fps). I don't have these blue USB3.0 parts, however, two of my USB-ports are termed "SS", so I aftergoogle research I think that these have to be USB3.0 ports.After installing the camera software, the camera works, but the live view is very slow (3,5 fps), such aswith USB2.0. The device manager describes the camera as USB2.0 too.I tried to compare the writing speed using a USB3.0 flash drive memory stick. Using theUSB3.0 ("SS") port, the speed was about 20MB/s, and using the USB2.0 port, the speed wasabout 17MB/s. Can anyone help me with that problem? I think that my USB3.0 doens't work correctly. I alreadyread some posts about that chipset drivers need to be updated. Best regards,Carsten

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RELEVANCY SCORE 52

Hi All, I've had a rather weird problem over the past week. I'll be working on my computer and everything is working fine, until I eventually close/reopen my laptop after which point in time the TouchPad and TrackPoint stops working completely (e.g. I can't move the cursor, I can't scroll, I can't click...but I can use the keyboard). Note that this doesn't happen 100% of the time but more like 85%. If I restart the computer, 9 times out of 10 that resolves the problem, but it's not the most elegant solution in the world. Interestingly, my USB mouse still works even when my TrackPad isn't working, thus I can't tell if it is a hardware or software issue. Does anyone have suggestions as to how to proceed? I'm running Windows 7 (64-bit). Thanks!Z

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RELEVANCY SCORE 51.6

This laptop is a Best Buy Blue Label, configured for sale exclusively by Best Buy.   The price is right for the included features, but we're very disappointed in HP's QA measures. This unit should never have made it out of the factory. Right out of the box, the display suffers from severe backlight bleeding in both lower corners of the display, so obvious that it's plain for anyone to see. Screen resolution may be 1920 x 1080 Full HD, but Netflix and Amazon HD videos are not as sharp or as bright as the same videos at the same resolution on my 3 year-old 15.4" MacBook Pro Retina Display. Backlit keyboard is either off or on, and on is far too bright, with bright light leaking around the chiclet keys, clearly visable and distracting. We want to like this computer.  We're tempted to simply exchange it for another.  In addition to our MacBook, we have a 13" HP Pavilion dv3510nr bought in 2009 that has been faultless.  But with our new HP Envy demonstrating such an obvious flaw in the display, we wonder what hidden flaws might manifest themselves weeks or months from now if we were to purchase another. This purchase represents a perfect example of why one shouldn't make a purchase of this type from an exclusively online seller. At least, with Best Buy we have a big box store where we can return it.













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A:Display backlight bleed

Problem solved. I returned the second HP laptop to Best Buy and purchased an open-box fully-warranted all-in-one 21.5-inch  iMac with a glorious 1080P display, wireless keyboard and mouse and not one single issue.  Partitioned the hard drive for WIndows 10.  Sorry, HP.

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RELEVANCY SCORE 51.6

I bought this laptop and after i opened the box i went for a video to see the display features. Then i noticed that there are White Spots\Screen Bleeding at the edges of the screen.I returned the laptop to dealer and he told me this was not a fault or defect and he was not going to change it.They simply do not accept that this is an acceptable condition to replace the laptop.He agrees that this happens to many products and he knew this was the issue in his many products but refused to return it.I need advice... Thanks in advance...  

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RELEVANCY SCORE 51.6

IBM Notebook Mod. 760 EL - Display goes blank while
computing (not on-line). After closing and re-opening cover,
RAM is as before. Able to continue until next screen blank??

Power brick is attached to the battery all the time.

 

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RELEVANCY SCORE 51.6

I received the notebook from my uncle when he upgraded and I noticed that after I shut it down, the display is still partially lit from the top edge of the screen. This also happens when the timer shuts the screen off. The brightness of this light dims when I disconnect the power cord but it never shuts off. The only way the light does go out is of course, when I remove the battery. I've scowered the web looking for a fix but any related threads do not give any real insight. It's been a few years since this topic has come up so maybe someone may have some ideas. 

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RELEVANCY SCORE 51.6

Yesterday out of nowhere my fingerprint sensor just stopped working, doesn't turn on, doesn't show up in device manager, I have disconnected it reconnected it nothing... Lenovo Vantage no drivers... I need to know what is going on. Someone, please help.

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RELEVANCY SCORE 51.6

Hi, I'm new here, but I've no ideas how to solve my problem so I've decided to post here. My touchpad stopped working (as usually here) but, gestures are working fine (on windows 7). I've tried everything, reinstall drivers, update SMBus (I know, that SMBus drivers have something common with touchpad), but touchpad still no poiting. Also, I've tried to install/boot linux, and for my surprise, there is working everything - pointing and gestures etc.. What should I do ? How to fix it ? I've also tried another touchpad - same issue. Adding screen of settings of my touchpad. Any idea guys ? Help pls. :/ Driver version: 18.0.7.116Detected by windows in: PS/2 mouse port Synaptics SMBus Driver:18.0.7.116 I've also tried to install older driver - not working - UltraNav 18.07.40, 17.0.12.60 ... 


























touchpad.png ?64 KB

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RELEVANCY SCORE 51.2

when i boot my E6420 with AC adapter connected, the backlight doesn't come on. (i can see the screen image with a flashlight so the LCD is working).
with the computer booted, when i remove the AC, the backlight comes on at full brilliance but it flickers and flashes.  (flicker--very quick dimming;  flickering--very quick alternating between LCD on and totally off).

then when i reconnect AC, the screen dims to the level it would be on battery (dimmer than on AC) but still flickers--but the flashing is gone.

if i boot with AC not connected, the backlight works properly for about 10 seconds, then the backlights flashes between on and off every 1/2 second.  after a couple of minutes, the frequency of the flashing on/off goes to a couple of seconds, and when it is on it flickers.    so---flicker flicker flicker  flash off   flicker  flicker   flicker   flash off   etc.
i ran the pre-boot diagnostics.  it flags the LCD cable as bad, but the display is passed as OK.  I can easily replace the LCD cable, but any other ideas?

i thought maybe the DC in jack/cable was bad, but i replaced that to no avail.

thanks in advance

ken

A:E6420 display backlight flickers/goes out

in the second sentence, i meant to say:
flickering--very quick alternating between backlight fully on and then dim but not off;  flashing--quickly alternating between backlight fully on and fully off

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RELEVANCY SCORE 51.2

Hi, the display backlight on my S405 has stopped working. It is not a software problem because it is present from BIOS start: I can barely see the Lenovo logo and then it goes on with windows start up.I've checked the cables connectors but everything is fine.Does anyone has experince with this problem? I have to buy a new LCD or it is a mainboard problem?Thanks in advance, Dario

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RELEVANCY SCORE 51.2

On board display is lit up but blank. External display works fine so does touch screen. Do I just need to replace the screen?

A:r7-571 display backlight works but no picture

Hello, Do you see something if you move slowly the onboard screen (nearly close/open and reversly)?

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RELEVANCY SCORE 51.2

Yoga 710 with no display.  You can see the screen lighten as if the backlight is working, but nothing else. Also, hooked up an external monitor through the HDMI port with success. The output on the external monitor looks fine.  I'm not sure if it's the entire lcd, or the lcd output from the mother board.  Motherboard (graphics section) seems to be putting out to the external HDMI port.  Thanks in advance for any help.

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RELEVANCY SCORE 51.2

Hello,
i recently replaced my dell xps 13 9333 top lcd assembly with a new one after breaking the old one.
However i observed that the new replacement screen did work but no LED backlight as shown in the pics below.
I made my research online and found out that my dell xps 13 9333 doesn't use an inverter board so i am trying to troubleshoot where the problem is comming from.
Please anyone with knowledge of the IC or Fuse controlling the backlight for the LED should please guide me accordingly.
Also,i circled the 40pin LCD connector to the motherboard...can anyone show me where to buy a replacement.

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RELEVANCY SCORE 51.2

Sometimes my laptop's display starts showing lines on screen or discolored image . (my config : i5 3230m ,8GB ram, 720m nvidia  with vga port) Now it has started to show black screen.  If i open and close the lid , sometimes the display comes back.  If i put pressur on trackpad , the display goes black and comes back when hand is removed, anyone has any idea what might be the cause/issue ! I changed the display cable and check the display connector it is ok.

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RELEVANCY SCORE 51.2

Hello everyone,

My laptop display is always black, but I can see the backlight is on.

My laptop is connected to an external monitor and when I click on Screen Resolution, I see that my monitor's name and my laptop monitor's name, but it's name is now different.

My laptop Display was always called "Vaio". It had max resolution of 1600 x 900.

Now, my Display is called "Digital Flat Panel (1024x768 60hz)" that is totally different than my display...any help?

A:Laptop Display black, but I see backlight

Update the Display adapter driver in Device Manager.

First run all Important and Optional Updates to completion to see if its offered, or another performance update is needed.

Rightclick on the monitor display to see how it is configured, try another. What happens when you choose only the laptop display, or unplug the monitor?

If these fail can you System Restore to before the problem began?

If not then we?ll try to think of other solutions before looking at the screen wiring harness connection.

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RELEVANCY SCORE 51.2

I was donated this laptop.. and was pretty sure it worked better at one time.. but had some display problems, and progressively worse.
I seem to only have a Backlight- no external monitor Display. Although message on External Monitor "check cable connect" does go out when it's plugged into the external port.It does sometimes boot up to the OS-(sometimes). I can hear the Welcome sound.. Other times It doesn't seem to boot up to the OS?  (I know the keyboard is malfunctioning and hear beeeep beep beeeping.)But It would be nice to see the BIOS Options on start at least. or Get the External Screen to work to see what might be going on..Wifi / Power/ Bluetooth/Battery and HD buttons light up on the Right- ON the Far Left - one of the lights with the lock icon(?) is light up.I have a feeling it might have something to do with the Factory Aluminum Shims under the Processor and Display Chip.Makes no Difference with the RAM or Battery removed.. except that it definitely won't boot...I always use the Adaptor for the Power.I'm not sure if Holding Down FN + start is doing anything.  Sometimes I just see a BLACK Screen and don't hear anything... Could it be running a Diagnostic and I don't know..(with just the Power/Battery and Bluetooth light)And if so- How long might it take / Could it fix the problem - or just give me a message to let me know what the problem is- which I won't see.Could I disable the keyboard... Read more

A:Dell Latitude D-630 Backlight but no display

DMMACKAY1,
You can click the link below to download the online user manual for troubleshooting help. It also provides information for removing/replacing parts.
Latitude D630 Drivers, Downloads and Manuals
The keyboard leds on the left side of the computer represent the following.
Starting from the Left LED and moving right.
The green lights located above the keyboard indicate the following:
The green lights located above the keyboard indicate the following:
This is an image of the Number Lock icon. Turns on when the numeric keypad is enabled. This is an image of the Caps Lock icon. Turns on when the Caps Lock function is enabled. This is an image of the Scroll Lock icon. Turns on when the Scroll Lock function is enabled.
Battery Status

If the computer is connected to an electrical outlet, the battery light operates as follows:

Solid green — The battery is charging.
Flashing green — The battery is almost fully charged.

If the computer is running on a battery, the battery light operates as follows:

Off — The battery is adequately charged (or the computer is turned off).
Flashing orange — The battery charge is low.
Solid orange — The battery charge is critically low.  

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RELEVANCY SCORE 51.2

Hello all.  Can anyone please help me?I am having display issues.  I have an HP Stream 11-d006TU, used by my wife. She was in the middle of working on a MS PowerPoint presentation, when the LCD Display went black.   When I hook external display via HDMI to our Sony Bravia TV, it works fine.  I immediately rushed to an open Computer repair shop at a nearby mall, asked a couple of repair guys but they had different opinions:First guy said it is a video card issue.  He tried turning the laptop power button off then back on (which I already did), and just flipped the laptop to check the bottom.Second guy detected that the external display is working, and advised to have the LCD replaced (which costs PhP 3,500 - PhP 4,500 or approximately US$70 - US$90).  I didn't pursue with his repair yet, as I was hesitant that he may just be trying to make a quick buck from me.Can somebody please help?   Can I still try some things before concluding that it's indeed an LCD replacement?  Thanks in advance for any help.

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RELEVANCY SCORE 51.2

Whenever  I start my laptop the screen lights up and the machine eventually starts as I can hear the windows starting tone.I can even shut down the laptop with the keyboard. But all the while the display is blank. I have tried removing the battery and holding down my power button for 30secs to 2 mins. These remedies sometime work, some times dont. If I leave my laptop off for a day or two it works normal again, for a while. My previous lcd and something called a Lvds cable has been replaced at the service centre couple of months back as they started to cause problems(my screen started flickering and freezing). It worked fine untill now. Any help will be appreciated. Thanks in advance.

A:G500 laptop's LCD no display but backlight's on

Hi bharthi , 
 
Welcome to the Community Forums.
 
Would there be any display if you connect it to any external monitor ?
How was it if you turn on the pc using the Novo button (next to the power item 6 page 2) to access the BIOS set up . 
 
If you have the skill and tools to reseat and check the LCD cable (page 61) see if that would help .
 
Update us how things go. 
 
Regards

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RELEVANCY SCORE 51.2

The display on my Pavilion G6 laptop is no longer working. The screen seems to display a backlight (i.e. is slightly illuminated) but nothing else. This applies to the POST/BIOS screens as well as the Windows screens which follow it. If I plug in an external monitor I can use it fine.  Any idea what the problem is likely to be?

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RELEVANCY SCORE 51.2

i have an Acer extensa 2510 serial is NXEEXEA00141910DE93400 SNID: 41906909734. I have checked both these numbers and I keep getting a error on Acers warranty check saying it can't find it in the database,but that's not my problem.
when I try to switch it on, the laptop screen is blank and the backlight flashes on and of repeatedly in less than 1 sec intervals (like a car's indicators). I have tried a hard reset, without battery start, reseating the ram and any other component and cable on the laptop (so yes I have striped it, I work in a pc shop we do repairs) but nothing worked.
so I switched it on and listened to the HDD to hear if its reading or just spinning and I noticed that it sounded like it was in synch with the screen. my thoughts on this is that the motherboard it busted.
 

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RELEVANCY SCORE 51.2

The backlight on the display of my E6440 died. I can use the computer with an external monitor, but I really need to be able to use the integrated screen. I've read about changing the inverter, but could find no posts that listed the part number of the inverter, so I thought it might be integral with the screen. I replaced the screen but it made no difference.
Is the inverter the next thing to try, and if so, what is the part number?

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RELEVANCY SCORE 50.4

Dear everybody,

i have some trouble with my old lovely laptop. The backlight for the display does not work but the display is ok. I changed the inverter and the display too. That wasn?t successful.
Now my question, which device is responsible for serve the voltage for the backlight? Is there a fuse or have i to change the complete device? What can i do to fix that problem?

Thanks for your answers.

Best regards

Michael

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RELEVANCY SCORE 50.4

my Lenovo g500 does not show anything at all when I power it on. The backlight is on but the screen is just a black colored screen with not even the boot logo. I can hear the fan spin the moment the power comes on and when I put a disc in, it spins. When I try to connect it to an external display, nothing shows up. I once opened the inside and disconnected the display cord with the motherboard and monitor and reconnected it but it still didn't work. When I charge, the charging indicator lights up. I even uplugged the battery and held down the power button for 30 second while the ac was pulled out and on(tried both). My monitor kinda shows some distorted white blurry ghost looking color when I tilt it back and forth. It's been happening even before the laptop had the black display issue. When this first occurred, I remember seeing the desktop a bit right after the pitch black screen with some warning or error prompt then the screen went black again(with backlight) I heard it might have something to do with lvds cable whatever those are. Not sure how to buy or replace them. I know it's not an inverter or display hardware problem. All I know is that I can't even get to bios or see the logo. It may or may not be running without displaying. Not sure if it's a gpu error or is something inside damaged?

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RELEVANCY SCORE 50.4

i bought a dell 7567 it has backlight bleeding on all four corners and on horizontal and vertical sides also.will dell fix it?. even at 0 brightness there is bleeding on four corners not much as full brightness. it is bleeding even at jalf brightnes

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RELEVANCY SCORE 50.4

My old T500 has a respectable 1680x1050 resolution panel. I was wondering what I can do to maybe install a LED backlight. Not sure if this can be done easily or not?  

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RELEVANCY SCORE 50

I have noticed that when my new HP Spectre x360 15 (2017) laptop PC is operating on battery power and the screen brightness is turned down, the screen brightness changes intensity (flickers) a little for a few seconds after opening up a program window.  It only experiences this condition upon opening the first program window.  Opening subsequent program windows after the first does not exibit this condition.  On AC power, I do not observe this condition at all.  On battery power, I observe this condition for several seconds at lower screen brightness intensity levels.  Is this normal?

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RELEVANCY SCORE 50

(Edit: Well, since someone decided to edit this and make it into a completely new post instead leaving it as a reply to an already established post, which makes no sense to me, this post is now completely out of context.  So now I need to edit it so that it makes sense.  Thanks for that............) So I have the HP Envy m7-n101dx.  LIke others, I have some yellow appearing in the corners of the LCD screen..  It's more apparent when the screen is at a brighter setting.  See image.  Due to the nature of cameras, this is showing what it would look like at it's worse even though, currently, it's barely noticible at this currently moment. Let me add to this something I just noticed.. I had my display on full bright for a while... When exiting the game I was playing (GTA 5, which has a dark screen with white text while the game is closing) that's when I first noticed it.. I lowered my brightness because it was getting a bit too bright for me (it's getting late.. lol) and I noticed the yellowing started going away.  When I put the brightness back up, I notice it but it's not nearly as bad.  Letting it stay full bright makes it come back full to where it had been previously.. Others with the problem.http://h30434.www3.hp.com/t5/Notebook-Display-and-Video/HP-Envy-Display-Issues-Yellow-Backlight-in-C... (Original Post)http://h30434.www3.hp.com/t5/Notebook-Display-and-Video/Help-with-HP-Envy-Display-Issues-Yellow-Bac... Read more

A:HP Envy Display Issues (Yellow Backlight in Corners)

Hi @andrewc437, Thank you for posting. I have read your post, and I understand that there is yellow backlight showing  in the corner of your laptop screen. I want to assist in this matter. Here is a link of troubleshooting the displayHP Notebook PCs - Troubleshooting a Notebook LCD Panel Issue (Windows 8/8.1, 7) You may need to contact the HP phone support in your case.Please use the following link HP Customer Support - Contact to create a case for your issue, and contact HP.If you live outside the US/Canada, please click the linkhttp://www8.hp.com/us/en/contact-hp/ww-phone-assist.html to get the contact information for your region Best of all,

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RELEVANCY SCORE 49.6

I have a dell Inspiron 15 5558, it is not booting in, whenever I press the power button only the keyboard backlight turns on and nothing else happens, the screen will be blank and doesn't lights up.
I tried replacing the memory modules but it doesn't helps solving the problem. Sometimes after switching on and off for a number of times  the display turns on and functions properly u till it is switched off.
Please provide me with some solution.
My product is still under warranty (POW) will I be able to get a free service if any spare for the laptop has to be replaced.
Thanks in advance.

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RELEVANCY SCORE 48.8

Recently got i5 7567....GTX 1050 Ti ...I have an old AOC monitor which supports VGA input....through HDMI to VGA adapter connected my laptop to monitor... On duplicate screen mode and second screen only, it works.....but the monitor goes blank saying "input not supported" on 'extend display '.
display settings has detected the external monitor...while intel hd graphics setting and nvidia control panel are not detecting the external monitor... 
Need help folks...!

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RELEVANCY SCORE 48.4

Compaq Presario CQ57-339WM Notebook PC System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 32 bit
Processor: Intel(R) Celeron(R) CPU B800 @ 1.50GHz,Intel64 Family 6 Model 42Stepping 7
Processor Count: 2
RAM: 1.85 Mb
Graphics Card: Intel(R) HD Graphics Family, 821 Mb
Hard Drives: C: Total - 286172 MB, Free - 63286 MB; D: Total - 14807 MB, Free -1646 MB; E: Total - 4055 MB, Free - 1108 MB;
Motherboard: Hewlett-Packard, 3672
Antivirus: Computer Security, Updated and Enabled

I cannot get the backlight to light up the screen, I can barely see the display. I have even replaced the screen with new.
The computer runs ok and the VGA output works fine when I hook it up to a monitor.

Thank you
 

A:Backlight not working

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RELEVANCY SCORE 47.6

My laptop keybord backlight is not working. i am using windows 10 OS. Can someone help please?

Thanks.

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