Dim display lenovo t 400 lcd

hi....
i dont know why and how this happened but it so happened that my thinkpad t 400 display became very very dim.
i tried increasing the brightness but it was of no use.Also the various lights that are present on the display panel(wifi,bluetooth,battery,charging,sleep mode,...etc) are not glowing any more.The screen has become very very dim.
Some people whom i have enquired have told me that the THT bulb might have fused.........................................is it so....................................................whatever it is please suggest me some help...............................................I need my laptop very badly at this point of time

If the front panel indicator LED's are off and the backlight is dead, then it sounds like something's wrong with the cable or motherboard. Whether or not the lamp is dead is uncertain.
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T61 dim display

Dim display, external video ok, lcd comes on when lid is shut & opened then goes dim. I have seen this problem on older laptops with a stuck lid closure switch ... can't find one on this laptop though ... HELP!??

I recently started having the same problem on my three-year old T61. The screen is legible, but definitely dimmer than it used to be. I'm happy to replace something, if I know what the problem is. Sounds like you have already done all the things I would have done. Did you also replace the backlight?

S405 dim display

Hi folks. Bought laptop new with windows 8 for use in a school district
I don't have the resources to support 8 right now, so I went to load windows 7.
Windows 8 display was bright
The setup when loading windows 7 was bright as well. All going ok.
But, after loading the AMD chipset drivers that are all bundled together, the display is half a bright as it was.
All settings I can find for brightness are maxed: In the power settings, the OSD keyboard setting (F12), the AMD display interface....
Too bad too, as there are many reviews of this latop that indicate a dim display and I'm sure that folks are getting turned away by that. After running a fresh install I know that the display and hardware are fine. It's the driver that's broken. PLEASE can Lenovo or AMD get a fix for this? It's almost unusable it's so dim.
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Solved!
Go to Solution.

I had to reload Windows 8 from a flash drive since I couldn't get any Windows 7 displays drivers to function correctly. For Windows 8, the drivers on the website were in a self-extracting executable that didn't work properly (I don't know if they've fixed them now), and then for a while they took them down (I don't know if they're back up). At the time when I reimaged the system, I had to download the Windows 8 drivers from the Chinese site, and they worked correctly for Windows 8. This particular laptop was a gift, so I don't have it anymore. Just happy I could get it working again with Windows 8.
After I was having so much trouble with Windows 7, I called Lenovo support to alert them of their drivers not functioning. I was hung up on. I'm not happy with Lenovo support, and if I didn't do I.T. for a living, I wouldn't have been able to figure out how to get working Windows 8 drivers.

Dim display.. Inverter or new display ?

Hello everyone. My display suddenly went dim three days ago, but i could see the icons, when i used a flashlight to the dim display. Suddenly, it worked fine fews hours later, and there was no problem in the weekend, but suddenly the problem repeated today in the morning, and there was suddenly light on the display again after few hours, but now, it went dim again.
I don't really know the reason to this problem, because im not sure of the problem comes from the inverter or the LCD backlight.
Thanks in advance
Oesen

Hi, Oesen
Does this happen both when plugged into AC and running off of the battery? Also, what is your machine type and model and what operating system are you running?
Thanks in advance,
Adam
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Qosmio X305 screen not displaying like my desktops LCD screen

My screen seems to be displaying dull images.
I'm kinda concerened, because it's an LCD screen, and its not displaying like my desktops LCD screen.
I put the brightness up, and that helped to see the images better, but they still are not of the quality they should be.
Is there a way to fix this? Or is that just how it is?

Many Desktop LCD Monitors can get very bright, much brighter than most notebooks. So it may just be how it is. Perhaps you could go to the shops and compare it to other X300's on display.
Try resetting or modifying the Contrast/Colour/Brightness settings in the nVidia control panel.

Heat, Fan, and dimming display questions

I have a hot running MacBook Pro. I've had the unit returned for service and only one of my four issues was resolved. The unit is going back again for service.
I seemed to irritate the last tech support person by asking questions about the heat issues. Maybe some people here can help answer the question that changed his tone for the worse during the remainder of the support call.
Can you easily hear the fan(s) when they operate or do you have to put your ear real close to the laptop to hear the fan(s) operate?
I asked because I couldn't tell you what a fan sounds like on this machine. I'm on my second motherboard and I cannot feel any air flow from all those vents (or anywhere else for that matter) along the back of the laptop near the display hinge.
Has anyone found a correlation between a dimming display and heat? What happens is the display dims the equivelent of bringing down the brightness down three levels and after a few seconds it brightens back up.
The laptop is going in for a second repair for the following reason:
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Hello I just wanted to give you some insight on the screen dimming. If you have not unchecked the box at the bottom of the display pane is system prefs the display will dim when ever it scences a lower light situation. I have attached a picture. HERE
MBP 1.83ghz and iBook G3 700mhz Mac OS X (10.4.6)

Ipod w/ dim display

My iPod 3rd gen. has a very dim display. Adjust the dimmer setting has no effect.

Try the standard fixes to rule out a software problem:
- Reset. Nothing will be lost.
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
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Dim display hp chromebook 14-C001SA

hi, ive got a issue with a dim display on my hp 14 chromebook 14-C001SA, the output to my tv via hdmi is fine,ive changed the screen and the ram and still the same issue, any ideas im so confused to what the problem is, any help would be much appreciated, many thanks

Hey @teddyredhead ,
Welcome to the HP Forums!
I understand the display on your Chromebook is dim but works fine via HDMI.
Try performing a hard reset on your Chromebook by pressing Refresh+Power.
If that doesnt help try Performing a System Recovery on Your HP Chromebook (Chrome OS).
If neither of those help I would suggest contacting HP Phone Support for service options as the inverter or motherboard may be having an issue. Please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the following link to get the support number for your region: Phone Assist Worldwide.
Thanks!
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Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

Desktop not accepting HP-Display - Compaq WF1907 Wide LCD Monitor update

All...
My desktop not accepting the HP-Display - Compaq WF1907 Wide LCD Monitor update. I've tried many times since 1/10/2008. Its really just annoying more than anything else. Anyone know why I can't get this update into my computer. I've never had any other problem with my Compaq-Presario GG060AA-ABA SR5127CL. Maybe I should just count my blessings and overlook this anomaly. Thanks.
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Here's the basic steps , including checking the parameters. My all time favorite, using reverse logic (sometimes).
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Hp 6730b dim display

hej!can anyone help me.my cousin have hp 6730b hp and the problem are dim display. last 2 year we have not use it when first time i start the display was very low i cant see it clearly but 10% can.(new harddisk) means no window instal in.how can i recover the display to normal or increase the display.sorry for bad english thanks

Hey @teddyredhead ,
Welcome to the HP Forums!
I understand the display on your Chromebook is dim but works fine via HDMI.
Try performing a hard reset on your Chromebook by pressing Refresh+Power.
If that doesnt help try Performing a System Recovery on Your HP Chromebook (Chrome OS).
If neither of those help I would suggest contacting HP Phone Support for service options as the inverter or motherboard may be having an issue. Please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the following link to get the support number for your region: Phone Assist Worldwide.
Thanks!
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

Dimming display

I am having a problem with my G5 iMac.
I allow my display to sleep after 5 minutes and do not have it set to "Automatically reduce the brightness of the display before display sleep."
Unfortunately, the display dims after about 5 minutes of use (5 minutes after I wake the display up).
Right before it dims, it gets brighter twice (even though I operate at maximum brightness), then it dims and I cannot increase the brightness.
The only way to get the screen to come back to full brightness is to let it go to sleep.
I tried a Archive and Install a while back in hopes of fixing this problem, but it persists.
Does anyone know how I can fix this problem?

Yes, read your user manual.
The screen is designed to dim in different lighting conditions. If you don't want it to do that, go to your system preferences and change it.
System Preferences>Displays>Automatically dim display as ambient light changes

Auto dimming display/kb not working

I need some help tracking down where this setting is stored. Here is the situation...
I have 2 user accounts on a 2.4 Penryn MBP. When the computer is 1st booted the kb backlight is on and the display is dimmed to the same level regardless of the ambient light levels. When I log into MY account on this machine the levels remain and the light sensors are completely non-responsive even if I cover the speaker grills completely. I have both auto dimming check boxes selected in the display and keyboard system prefs.
Now, if I log into my wife's account on the same machine, everything works just as it did before. Auto-dimming of both the kb and display back to normal.
I have tried resetting the SMC, PRAM, trashing all prefs in my user folder, trashing prefs in the root library folder.
Where are these settings stored? Any ideas on how to reset them?

I really would like to know too where are stored the enable/disable auto-dimming display preferences.
This setting is not scriptable, not programmaticaly accessible (Obj-C), not even stored in any .plist, because I have logged filesystem events and nothing is written to the disk when this setting is changed.
It is really annoying ! I would like to access this setting by applescript for exemple. The only way to change it is by opening the System Preferences, then de Displays panel, then using the checkbox.
Does someone have any clue on this?

Dim display - CQ40

Hi everyone.
First, I want to express my disappointment. Argentina (I am not from USA) IS NOT in the list of available countries in the registration process. That's really bad and insulting. The whole planet is there, except we don't.
Having said that, I have a CQ 40 that starts with the classic dim display problem. Only when starts, a few seconds looks ok, the dim. The same thing, when close de lid, and open again.
So replaced the inverter with a new one after try with 2 displays (the one from the notebook and another one, using the inverter with the signal from the notebook) same thing.
So started to see the magnetic lid switch. When pass over a magnet near, the screen come back. After doing that several times the image stay and the display work flawless until shut down the computer. Also, with the rule of "sleeps when lid close" could probe that isn't the lid switch that causes the problem, because when the display goes dim, it ins't go to sleep mode. But when make work the switch with de magnet, goes to sleep like it should do.
The last thing is a backlight issue, a bad lamp or bad wires that works when goes ON several times maybe?
Thak you in advance for the replies.

Please try the troubleshooting steps shown below to resolve the issue:
1. Please Press Fn + F7 or Fn + F10 Keys on the Notebook Keyboard to increase the Brightness
2. Disable ambient light sensor in BIOS if its available
3. Update the latest BIOS, Chipset and Video Drivers
4. If the display works fine on External Desktop Monitor, Reseat Display Connector to Motherboard
[If you are comfortable]
5. Replace the Display Panel
Note: If external monitor has dim display we need to re-install the operating system and if that doesn't resolve the issue we need to replace system board & Display Panel
Hope this helps, for any further queries reply to the post and feel free to join us again
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Dim Display key takes 2 taps

I have just started noticing a strange behavior in my MBP (early 2009, just before built-in batteries on 15 inch).
The Dim Display key now takes 2 taps to work. For instance, tapping it once brings up the Brightness meter, but does not change the brightness. A second quick tap dims the screen 1 level. A third tap does nothing (assuming the brightness meter is already up), a fourth tap dims the display another level.
Thoughts?

Just happens when the room is very dark, apparently a feature for some reason.

SL300 Dim Display

Hi All
I was searching the internet for possible solutions to my problem and found this board but couldn't find an answer to my problem. Basically, I have an SL300 and the screen is really dim. I can just see the image on the screen but there is no brightness at all. I have read that it may be an issue with the invertor or the LCD backlight? but I wouldn't know which or both??
Has anyone any ideas please?
Thanks

hey RichH,
welcome to the forums,
have you tried updating your unit ? If you haven't, head to http://support.lenovo.com and kindly do so.
if you have and the display is still dim, then get in contact with the support team via >>
http://bit.ly/LNVsuppNum
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Dim display lenovo t 400 lcd

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