W540 thinkpad brightness

Hello
Brightness on thinkpad doesn't work.
I have reinstalled my thinkpad W540. For display driver I have downloaded latest version from Nvidia. All other drivers are installed from Lenovo website.
OS: Win8.1 pro
When I push the F5 or F6, display brightness bar is shown, but nothing happens.
Already tried
- reinstall drivers after delete device in device manager
- reinstall programs after delete all drivers from nvidia and intel in program and features
Do you have a solution?
Solved!
Go to Solution.

You must use the nvidia drivers from the lenovo website. Unfortunately lenovo does not update the drivers, so you can either choose to have the latest features or the ability to change your brightness.
W540: i7-4700mq, K2100m, 8 GB DDR3L, 512 GB SSD
T510: i7-620m, NVS 3100m, 8 GB DDR3, 512 GB SSD

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  • Using W530 Win 7 Recovery Disks on W540

    Hi All,
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    Go to Solution.

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    Regards.
    English Community   Deutsche Community   Comunidad en Español   Русскоязычное Сообщество
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    X1C3 Helix X220 X301 X200T T61p T60p Y3P • T520 T420 T510 T400 R400 T61 Y2P Y13
    I am not a Lenovo employee.

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  • W540 Cant adjust the screen brightness

    I have a  W540 with 3K Ips panel and Windows 7 Pro 64bit.
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    -Remove Lenovo Power managment
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    Sorry for my bad englisch
    Solved!
    Go to Solution.

    Go to http://support.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-w-series-laptops/thinkpad-w54...
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    Jonas
    Microsoft MVP: Windows Consumer Expert
    Yoga Tablet 2 10 || ThinkPad X1 Carbon (20A7007MPH) || ThinkPad Helix (3698-6EU) || IdeaCentre B540
    Twitter: @jonashendrickx

  • The Venerable ThinkPad W540 – A Journey in Multiple Parts: Part 2

    Missed Part 1?  Catch it here
    Part 2: System / BIOS setup.
    For the average consumer machine, users can get the most out of it without ever having to contemplate these advanced setup procedures. A ThinkPad, however, requires the user to take a peek at them at least, because the default settings certainly do not fit all usage scenarios. From hardware settings, performance and power setup, to security, OS installation and enterprise deployment, almost everything is configurable. Having your ThinkPad wrongly configured in BIOS can slow down OS booting, disabled features you need are not showing up in OS and enabled features you don‘t need will produce unwanted activity / battery drainage etc.
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    From within Windows 8/8.1:
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    Click on Change PC Settings
    Click on General (Win 8) Update and Recovery (Win 8.1)
    Scroll to the bottom and click on Advanced Startup -> Restart Now (Win 8) Select Recovery -> Advanced Startup -> Restart Now (Win 8.1)
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    Click on UEFI Firmware Settings
    Click on Restart
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    On to the Security screen, where many mission critical options reside. Many of these options should not be played with, as setting them wrongly can have serious consequences. Particular care should be taken when setting one or more Passwords for access control, as there is no fallback or fix that can reset a forgotten password.
    Leaving the Security settings at their default is fine in most usage scenarios, but some features are disabled by default, like Virtualization, and need to be enabled for them to work. The Security Chip is initially set to Inactive, which means it is visible in your OS, but inactive. I set mine to Active as it is required by the Security Reporting Options, which I do monitor if something comes up as well as enabling the Intel Trusted Execution Technology (TXT) options, which I also have set to Enabled.
    The UEFI BIOS Update Option is self-explanatory and in addition you can prevent older BIOS flashing by turning the Secure Rollback Prevention to Enabled. Memory Protection and I/O Port Access are all enabled by default and no restrictions or access control to your hardware is set. The Internal Device Access option is for the Bottom Cover Tamper Protection, which works in conjunction with the Supervisor Password, so if no Supervisor Password is set, the Tamper Protection won‘t take effect even if set to Enabled. The Anti-Theft module is active by default, and thus you‘ll get popups in your Windows OS regarding enrollment. If you do not wish to see those or you won‘t be using the feature, just set the AT Module to Disabled. Same as with the Intel AMT Control, the AT Module can be permanently disabled as well.
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    Secure boot is a UEFI protocol not a Windows 8 feature.
    UEFI secure boot is part of Windows 8 secured boot architecture.
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    For detailed information on the W540 System Setup, refer to the User Guide available here:
    ThinkPad T540p and W540 - User Guide
    Click here to read Part 1 of AtliJarl's mods to his W540, which is one of the machines we had passed to him for use.

    Good write-up ;-)

  • About Lenovo Thinkpad W540 for Music Production at a Professional Level

    Hey there! I just signed up to this blog in search for an answer to my quest. I've heard a lot of good things about Lenovo ThinkPad W540, and I would like to make sure that I am getting what I really need to stay up to date, in this everyday changing technological world, for a while before making a purchase.
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     Hi ColonellONeill, thank you for taking your time in attempt to solve my problems.
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  • W540 stuck on ThinkPad splash screen

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    Not knowing your exact set up, but KNOWING that this is a blind black box with no activity light like a normal workstation, you need to do workarounds.
    Normally, on my older workstation, I could see the HD light blink and the rate would give me an inkling of the process.
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    Back to the workaround: Boot the system, and when there appears to be a crash or hang in the sequence, note the time of the 'event' and also note the time when it appears to restart.  Once properly booted, and I cannot tell you how often this has happened to my W540, check the even times in the [Event Viewer].  Too long to explain, Google the term "Win 7 Event Viewer", or check this:
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    FWIW, often I get <Program Not Responding>, when in fact it is performing a numbers intensive task.... yet I cannot tell what is happening as there is no i/o light. Usually unlocks when the task is finished, which may be what is happening on your system.  You need to find out the task that is  causing the wait.
    Odd, the Lenovo Gaming machines Y50 have these lights, albeit atrophied:  see lower 4 indicator lights....

  • VGA Ausgang, ThinkPad w540

    Versuche bei meinem ThinkPad W540 einen CTR-Monitor über den VGA-Anschluss zum laufen zu bringen, leider bekomme ich bei der Auswahl der Auflösung immer nur geringe Auflösungen mit max. 1280x1024 vorgeschlagen, obwohl der Bildschirm (Sonx GDM-FW900) Auflösungen bis zu 2304x1440 unterstützt.
    Habe es bereits über den Intel-Chip und über die Nvidia-Systemsteuerung probiert, beides ohne Erfolg.
    Der Bildschirm wird sofort vom System erkannt, nur ist leider die richtige Auflösung nicht einstellbar.
    Kennt jemand dieses Problem?
    LG

    Hi gigapixxel,
    Du kannst (fast) alles über das Gerät in das ThinkPad PSREF (Personal Systems Reference) finden, je nach Ausstattung kann es selbstverständlich Unterschiede geben.  http://www.lenovo.com/psref/we/
    Über der VGA dürfte 1920x1200 @ 60Hz funktionieren. 
    Andy  
      Deutsche Community     Comunidad en Español    English Community Русскоязычное Сообщество

  • W540 with Apple 27" Thunderbolt display - how to control brightness?

    Hi everyone-
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    [1] http://duntuk.com/how-install-apple-thunderbolt-display-non-apple-thunderbolt-pc-brightness-control-...
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    Solved!
    Go to Solution.

    Also! Just tried installing the "Intel Thunderbolt Software" that was available from Lenovo System Update (did not see that before) - once installed, I could use the Brightness Controller app [1]
    [1] http://www.holstschumacher.dk/p/brightness-controller.html

  • Thinkpad L512 display doesn't reach full brightness

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