T510 Brightness Issues

Hi everyone,
I have a T510 with nvidia nvs 3100m graphic card windows 7 professional 64 bit, for the past few months when I come to windows login screen brightness automatically dims and then after windows open within few seconds brightness is restored. It happens on an intermittent basis. I have updated my BIOS, windows and GPU as well, but that made no difference. Tried finding a solution for these symptoms online but had no luck.
Any help would be appreciated
T510 with Intel i5 M520@ 2.4Ghz, 4GB RAM, Windows 7 Professional 64 bit. Nvidia NVS 3100M.
Solved!
Go to Solution.

Hello llaksh, welcome to Lenovo forum!
Please open up the powermanager (right click on battery icon in task bar)
Go to tab "Global Powersetting" choose the menu "Dynamic Brightness Control and uncheck the occasions, when you don´t want a decrease of the screen brightness.
Hint: I set it enabled cause it save battery time.
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T510: display issues(Bright pixels that wouldn't go away) -support?

Shortly after purchasing a new T510, I started to have problems with the display (Bright pixels that wouldn’t go away). I figured it was a BIOS or driver issue. However as my company purchased about 80 of these machines and I turned out to be the only one with the issue, I called support.
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I really have no idea how to proceed with this one. This is first time in my career that I have ever been treated like this. I really have no idea what to say.
Moderator Note: Edited subject to match content.

technoone wrote:
" but it seems an awful lot like that subject line was changed to, well, make sure less people would click through and read your post.".
I'd like to give you the benefit of the doubt on this one, there is a message at the top of the forum stating:
"Welcome to Lenovo's Discussion Community! Please note our guidelines when posting."
if you read the Forum Guidelines it states quite clearly;
Title threads appropriately
. The title of a thread should accurately reflect the subject of the discussion and be as technically specific as possible. Avoid inflammatory or emotional statements that do not aid the development of the conversation. Thread titles are indexed not only for search functions within the forum, but often externally in Google, Yahoo, etc. Proper thread titles will aid the active members of the Lenovo community, as well as non-members who may be searching more broadly. Example of a good thread title: T Thinkpad Blue Screens after suspend . Example of a bad thread title: Stupid computer locks up - worthless piece of junk. Moderators may alter thread titles to be more meaningful if less than appropriate titles are chosen.
I'm certain the edited title represents the actual real hardware problem at hand better than the original because it's more descriptive and accurate and will therefore attract the attention of the members who have experienced the same or similar situations to comment and offer advice based on their experience.
Please do take time to read our guidelines as I'm sure you'll find some other helpful and informative tips in them.
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T510 DISPLAY Issue: Intermittent high Contrast/Brightness

Hi folks - This is my first Lenovo forum submission and I will do my best to describe the problem with my laptops' video/display. I'm all ears for your suggestions.
*Issue*
The display would occassionally dip down in brightness/contrast then change up to a very HIGH contrast level on its own. The desktop icons, background image & browser images become un-sightly bright BEYOND your normal Lenovo Power Manager settings. All the white hues turn even brighter, and some hues are NOT viewable at all on certain backdrops. Usually, it resolves itself after several minutes.Then it's business as usual.
I do not believe it has anything to do with the Power Manager settings (e.g. Idle Time, brightness control, Battery vs AC power, etc.). It simply occurs on it's own then disappears. A reboot can help and so does closing the lid and re-logging into Windows. But who wants to practice that technique after paying over $1600 for a professional grade business laptop?
I found only ONE forum message that came close to reporting the problem, found in the body of a message and NOT as a subject (SEARCH: "screen image fades as if you lose contrast")
Frequency ? - Atleast 4 times a month for the past 3-4 months since my purchase in summer 2010.
OS: Windows 7 (64 bit)
CPU: i5-540M 2.53GHZ
RAM: 4 GB
Laptop model: T-510
Laptop Product ID: 4313CTO
Graphics: 15.6 HD+
Battery: 6-cell
Purchase date: summer 2010
Solved!
Go to Solution.

http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T410-Screen-flickering-randomly-screen-cont...
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Laptop-mode / laptop-mode-tools lcd brightness issue

I have an issue with my lcd brightness config in laptop-mode tools
here is the brightness values
[venky@ARCHROCKS ~]$ cat /proc/acpi/video/VID/LCD/brightness
levels: 72 24 12 24 36 48 60 72 84 100
current: 72
[venky@ARCHROCKS ~]$
following is my lcd-bightness.conf file under /etc/laptop-mode/conf.d
# Configuration file for Laptop Mode Tools module lcd-brightness.
# For more information, consult the laptop-mode.conf(8) manual page.
# LCD brightness settings
# Using these settings, you can make laptop mode tools automatically adjust
# your LCD's brightness settings. The settings are extremely simple -- they
# only allow for the execution of a command, nothing more. The reason for this
# is that LCD brightness settings are very different between laptop vendors.
# Suggestions for commands:
# * If your system has the file "/proc/acpi/video/VID/LCD/brightness" (VID may
# be VID1 or similar), use this file as BRIGHTNESS_OUTPUT, and use
# the command "echo <value>". The possible values can be listed using the
# command:
# cat /proc/acpi/video/VID/LCD/brightness
# * If you have a file /sys/class/backlight/.../brightness, then you can use
# that file as BRIGHTNESS_OUTPUT, and the command "echo <value>".
# As far as I understand it the values are between 0 and
# the value contained in the file /sys/class/backlight/.../max_brightness.
# * For Toshiba laptops, use the command "toshset" with the -lcd or -inten
# command. Read the toshset(1) manual page for more information on the
# parameters for this command. If you use this command, set
# BRIGHTNESS_OUTPUT to "/dev/null".
# IMPORTANT: In versions 1.36 and earlier, these settings were included in the
# main laptop-mode.conf configuration file. If they are still present, they
# overrule the settings in this file. To fix this, simply delete the settings
# from the main config file.
# Should laptop mode tools control LCD brightness?
CONTROL_BRIGHTNESS=1
# Commands to execute to set the brightness on your LCD
BATT_BRIGHTNESS_COMMAND="echo 24"
LM_AC_BRIGHTNESS_COMMAND="echo 100"
NOLM_AC_BRIGHTNESS_COMMAND="echo 72"
BRIGHTNESS_OUTPUT="/proc/acpi/video/VID/LCD/brightness"
so basically while in AC power i want full brightness when on battery i want one notch more than the minimum brightness and when laptop-mode is not running i want 2 notches less than maximum brightness.
the battery mode works fine when i unplug the computer but when i replug the AC power it goes to 72 instead of 100. I mean laptop mode is running coz when I remove ac power it goes to 24 again.
Am I doing something wrong?

When you plug in AC power, laptop-mode probably turns down, so LCD brightness is set to 72. It depends on if you have set in /etc/laptop-mode/laptop-mode.conf ENABLE_LAPTOP_MODE_ON_AC to 0 or 1.

Video Message - brightness issue which needs resol...

Hello
I am currently running Skype 6.5.0.158 and using a Microsoft LifeCam Studio webcam. When using my webcam for normal calls, or even checking the Tools -> Options -> Video Settings, then I can see my picture perfectly fine - colours are vibrant etc.
However when I use the Video Message feature I see a very dark picture. It's like the brightness has been turned down. My room has all the lights on and there is a fair bit of light coming through the window. I've tested this with a Logitech webcam (not sure of the model) which appears to work without error.
Please see attached document with examples. And yes, I know it's a Shrek soft toy and that my webcam is in mirrored mode at certain points.
I look forward to hearing from you.
Thank-you.
James
Attachments:
EXAMPLES.jpg ‏364 KB

I don't have that problem, but using the model before that one, I can tell you the camera settings can easily cause the issue. Microsoft Lifecams tend to have a "truecolor" option and several other "auto" settings. The best thing to try is to go into the "Video settings" - "Webcam Settings" in Skype and try toggling the settings and moving the sliders to a point where the video appears bright enough to you. See attachment.
I do know that the overlay software that comes with the camera does not work. You could also try 3rd party virtual camera software like "Manycam" (Manycam.com). I have used that software and selected the Manycam Virtual Camera dropdown in Skype to be able to use the overlay software and the Manycam software to add even more overlays successfully. You may also have better luck controlling the brightness in Manycam, if it doesn't seem to appear properly without it. Be aware when Manycam is running, the normal Lifecam drop-down will not work, until Manycam is closed.
Attachments:
Webcam_Settings.jpg ‏74 KB

Apple Cinema Display 23" brightness issue while using with Microsoft Vista

Hello there,
I have the following issue and was wondering if someone has an idea what the reason is or what can I do to fix this:
I have a 23" Apple Cinema Display running with a MacPro 2,8 GHz. When I switch to PC using BootCamp 2.1 with Windows Vista Service Pack 1 32bit the screen becomes extremely dark.
At first, on the PC side, the display has the correct brightness but after two seconds it switches to a very low brightness setting.
When I go back to the Mac side the brightness setting on my Cinema Display has changed to the lowest point.
I also have a MacBookPro, with Microsoft XP installed also using BootCamp (I cannot find the version of this Boot Camp, but it is an earlier version) to change to PC. In XP, there is a driver installed that allows me to use a slider on the PC to control the monitor brightness. But with Vista this slider is nonexistent.
I already tried changing the graphic's card NVIDIA 8800 driver to see if I can manipulate the brightness on the monitor. I realized there is brigthness slider on the Nvidia driver, but when you make brighter, the colors just get messed up, and the brightness stays as dark as before.
We have lately upgraded to Snow Leopard and had installed Spyder on the Mac side to create a monitor profile for the Cinema Display. I already deleted the profile to see if there is a change. Nothing. I already went back in time on my PC (Restore Point), also nothing.
Could I download a driver for Vista, so that I have a brightness slider on the PC side, so that I can adequately change the brightness to its correct setting.
It is amazing how the lack of correct brightness in a monitor, can ruin your entire working day! Very frustrating!
It would be greatly appreciated if someone has a solution for this issue! Thanks a lot!
Emil

Okay, I came across a thread that implies there is a problem with using the Apple ADC-to-DVI adapter to attach the older "acrylic" 23" Cinema Display to a Mac Pro DVI graphics card. Basically, the workaround is to NOT use the USB part of the adapter (disconnect it).
1) In OS X, set the desired display brightness.
2) Disconnect the USB cable coming from the converter to the Mac.
3) Restart into Windows.
The brightness setting should now remain as it was under OS X.
Confirmed to work on my Mac Pro v1,1 (dual 2.66 Core 2 Duo) with nVidia GeForce 7300 GT video card running Windows 7 x64.
Link here: <http://forums.macrumors.com/showthread.php?t=790910> for credit to resolution.
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T510 boot issues - power button flashes

I have a T510 that is acting really strange.
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Maybe the keyboard cable or the keyboard itself? Nothing shows on screen during a false start?
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Flex 15 brightness issue.

After upgrade the latest Windows 8.1 update (End Apr), the brightness adjustment are not function any more.
The brightness key at the keyboard and setting in the windows also not working.
Kindly help to solve this issue.
Thanks

Have you updated all your drivers after upgrading to Windows 8.1?
You can find drivers for your model here: http://mobilesupport.lenovo.com/us/en/products/laptops-and-netbooks/flex-series/ideapad-flex-15-note...
Jonas
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Brightness issue after awaking from suspend

I hope it's in the right category...
After waking up notebook from suspend in Gnome (I didn't try it in KDE), the brightness is at its full. Normally, it is set to like 30%. Any ideas why is brightness full after awaking and how to make it to keep the brightness as it was before suspending?
Thanks

Hm, that is interesting. I had ACPI installed. Then, I installed acpid and added acpid to the daemons in /etc/rc.conf. But that didn't fix the issue. I even tried to change brightness settings in Gnome but that didn't help either. I also tried to fix the issue according to Wiki entry in acpid. It did not work.
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button/sleep)
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SLPB) echo -n mem >/sys/power/state ;;
*) logger "ACPI action undefined: $2" ;;
esac
ac_adapter)
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00000001)
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#/etc/laptop-mode/laptop-mode stop
esac
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esac
battery)
case "$2" in
BAT0)
case "$4" in
00000000) #echo "offline" >/dev/tty5
00000001) #echo "online" >/dev/tty5
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CPU0)
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esac
button/lid)
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Lumia 735 screen brightness issue

My new Lumia 735 has an issue with the screen brightness dimming for no reason. For completeness I have done a reset, it is nor on auto, and does I when on mains or battery. The screen is supposed to be extremely bright when set to max. However it is for about 10 secs then dims then goes bright again then dims for ages then suddenly goes bright. I have been Through all settings and changed/tried all things to no avail. I think this is not a unique problem and is prob software linked. Anyone got any ideas?

Although you say you've set the screen so the brightness is NOT set to 'auto', this sure sounds like the light sensor is still active.
I would first try a power cycle to see if that clears things up (which I doubt, but no harm trying, right?). Then do a back up and try a hard reset.
After the hard reset, test to see if the brightness is working properly. If not, then it may be malfunctioning light sensor and require repair/replacement. If it's working properly, then slowly start adding apps one by one and testing again, to see if one of them is causing the problem.
/drt

56HM195 DLP Clunking noise dim/bright issue

Got an old 56HM195 that I inherited, been running good until the other day it started making a clunking noise. The picture dims and brights alternately with each 'clunk'. The bit of lamp I can see shining thru the rear of the housing appears steady. So the dimming is in the mechanism, perhaps? I can hear a fan running. The vents aren't too dusty. I pulled the lamp, visually it looks good. It is an OEM type I put in back in 2012, not one of the cheapos. The picture has been slowly dimming with age (gets a lot of use) and I knew I was headed for a new lamp eventually, however the clanking/dimming has me stumped, especially when from the rear peeking in the cracks the lamp light appears to be steady up to a certain area, I'm assuming past the light engine, then you see the flashing. The clunking/flashing isn't quite per second but is is close to that and very regular, not intermittent or variable. The picture is otherwise flawless, I have no static, no spots, no green/blue areas, the colors are as they should be as far as I see.
When I'm not turning it on or off, and it's just sitting there flashing the screen bright/dim and clunking, IIRC the led lights don't show any errors.
When I turn the television back off, the clanking continues until the set reaches the end of its cooldown cycle, at which time it quits making the noise.
Fan going bad? Light engine crapping out? Is it really just the lamp? Reluctant to buy a cheap lamp, but also reluctant to buy a full-priced one when I'm not sure that is the fix. Any ideas? If no one replies I'll be tempted to do dirt cheap lamp knowing it's a piece of junk, on the off chance it is a lamp issue, then I'll go from there. With Wally selling comparably-sized flat screens in the $400 range now I'm not going to pour tons of money in this but I don't mind feeding it lamps every three or four years, either.

Thanks for the links. Yes, I've tried everything, and so did a Genius at the  Store today. He took it in the back, then came out, saying that he thinks it's a logic board problem. He told me that he had hit the button to turn it on, and that it had not responded immediately, but came on a few moments later. Despite my best efforts, I have not been able to replicate this behavior. He said he really didn't know much more about it, and that he wished he could, but he was "bound by 's rules" on the matter and had to send me along with the out-of-warranty line. So I'm heading to a 3rd-party guy in the next day or to, and I'm gonna let him run some diagnostics on it.
I don't know what he was talking about with the turning on thing, but it seems to turn on just fine for me–and I've pushed that button all night now.
Hopefully the second opinion will cast some light onto this issue.

Pavilion 13-a010dx Brightness Issue

Hello, I'm having an issue with my Pavilion 13-a010dx x360 Convertible PC.
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Hi @ThatoneHPGuy ,
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Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

T510 Brightness Issues

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