Lenovo ThinkPad W Series :: W540 Cannot Adjust Screen Brightness
Feb 8, 2015
I have a W540 with 3K Ips panel and Windows 7 Pro 64bit.
I recently installed a new hard drive and installed windows 7 pro 64 (previously on the other hard drive was Windows 8.1 Pro 64 bit ( there I could change the brightness ) )
My problem is that I can not change the brightness .
I've already tried:
-Reinstalled all NVIDIA driver
-Reinstalled all Intel graphic drivers new
-Reinstalled Intel and Nvidia drivers simultaneously
-Remove Lenovo Power management
-Tried to install NVIDIA driver from the Lenovo and the Nvidia page
-Reinstalled Windows
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
I've got 2 separate but really annoying issues with my W540 20BH:
- display brightness keys not working: when waking up from Hibernation mode, sometimer (really, randomly!) the display brightness keys (Fn+F5/F6) don't work.... either if the display brightness is stuck on max, min or an intermediate level...Is there a way to shut down and restart the process which commands the Fn keys?
- audio channel commutation gets stuck. Normal behaviour of the audio configuration is: 1) speaker volume disabled, mic disabled 2) when plugging in a 4-pin headset, headset's volume is on, headset's mic is switched on; speaker volume is still disables. 3) when unplugging the headset, speakers' volume is still 0
After each boot, the audio channel is at 0, but doesn't commute to the headset when plugged in! I have to open Configuration Panel, realtek properties. With this window open, unplug and re-plug the headset. Now, the volume has its normal behaviour.
Any better way to configure audio channels and evenments, which is able to bypass realtek's manager?
I used my brightness down button once and now it won't go back up. I can't adjust the settings at all, despite the graphic on the screen showing me the meter going up and down. I've checked all drivers, tried uninstalling and reinstalling lenovo energy management, and I've still got nothing. I've stopped short of a factory reset because that's super annoying having set everything up and then a couple weeks after purchase have to do it again.
I own an Ideapad Z-500 notebook running Win 8.1.After updating Intel graphic adapter from Windows Update the screen brightness adjust key (F11 and F12) stops working and I cannot adjust my scrren brightness.I have to uninstall it and disable Windows update to keep using my laptop.
Another problem on my Lenovo Thinkpad L520: After installing the Lenovo Power Management Driver, I can no longer adjust the LCD brightness by using the FN+DEL/POS1 keys. Immediately after adjusting the brightness, it gets reverted to its old value, set in the Power Management software.
I tried the Windows 7 driver (1.65.05.21) and the WIndows XP/7/8 driver (1.66.0.22), both with the same result.
This is really annoying and I am very frustrated with Lenovo right now, since this is not the only problem I am having with the laptop.
I can't adjust or change my brightness with the hotkey (F11 and F12) or even with the slider in settings. option brightness of my laptop doesn"t change it is stationary.
I have had this computer for about 9 months and just recently have been unable to adjust the screen brightness. I have had this problem for a couple weeks and have installed all available updates and restarted the computer. I could not find any relevant information on this issue. My product is in warranty until December ....
I have lenovo ideapad z510 came with windows 8.Then I have installed ubuntu 13.10 on it. But when ever I turn on my laptop in ubuntu brightness set to 0 & I have to manullay adjust it.
I open this post to report a brightness problem on Lenovo Z500 Ideapad. Yesterday I've upgraded to OS Windows 8.1 and when I adjusted the screen brightness it goes off, and brightness adjust function doesn't works. I've solved my problem reinstalling the Intel video drivers, downloaded from Lenovo Driver Support.
It seems that Windows 8.1 upgrade disables video drivers.
I can't adjust my screen brightness using the Power Manager. Updating to the latest release of the ThinkVantage Communications Utility did not solve the issue. I can't make the screen either brighter or dimmer.
My new W540 has the latest bios & software updates. It won't wake up from sleep...or rather the display won't come on. When I push the power button (pulsing green), it goes to solid green and the fingerprint scanner light turns on, but no screen. I scan my fingerprint and the scanner light turns off, but still no screen. The only way to bring it back to life is a long press on the power button and a reboot.
Nothing plugged into any of the ports. It does this regardless of whether it's plugged in or on battery.
I have just ordered a w540 and I'm wondering if I can add a second hard drive (actually what I want to install is an SSD) to it. In which case I failed to find the appropriate message...
I have tested the following on 2 identical W540 machines.After installing Windows 8.1, the internal camera is not working. I dont remember if the camera worked before we installed 8.1. I have installed all relevant drivers and updated all windows updates. I have installed all drivers from System update.
I waited a long time for this new W540. Downlkoad all the newest drivers and did all the updates and now this POS will not shut down. Just goes to a black screen and have to hold the power button to force a shut down.
When I try to reboot the screen goes to black right after the home screen with a twirling cursor. Had to send my new W530 back for hard drive failure and now this W540 is screwed, too!
When I put my laptop to sleep or it sits idle for a period of time and goes to sleep on it's own it stops recognizing the laptop monitor. It will still display on other monitors connected through the docking station, but not the laptop. It doesn't matter if I put it to sleep while on the dock or off the dock, it never recognizes the monitor.
I have an Intel HD Grpahics 4600, and an NVIDIA Quadro K1100M video cards. I've checked drivers for both and they both say they are up to date (9/29/14 for Intel, and 09/12/2014 for NVIDIA). I have also updated every possible thing in the Lenovo System Update.
This problem occured after switching from windows 7 to windows 8.1.I have also lost the ability to control the brightness of my laptop monitor through my computer at any point in time. The function keys don't work, and the setting is not shown on my power manager.
I recieved the W540 a few days ago, and I see there is a slot behind the battery for a SIM card, I tried using my SIM card and I still can't use mobile broadband. Can I use mobile broadband on the W540? do I need any drivers? and if I can't use it, can I buy something like this for the expresscard slot and insert the SIM in the slot behind the battery?
I got my w540 in about 2 weeks ago, and finally had a chance to start migrating everything to it last week. I bring my laptop(s) to and from work everyday and right now I'm bringing a w520 and my new w540. But everyday since I started bringing my w540 home with me when I get home the laptop is running when I take it out of my bag.
So yesterday and this morning, I made 100% sure the laptop was in sleep mode and nothing was running before I put the laptop in the bag. I get to work 15 minutes later and the laptop bag is about 150 degrees because the w540 is running even through the lid is closed.
They differentiate by the number of ports and by the power adapter supplied with them. I had an opurtunity to try my W540 on pro dock, which normally has 65W or 90W power adapter. The computer warned me about insufficient power, and did not charge on dock, everything else worked fine. The I disconnected 90W and connected my original 170W power supply to the doc. Everything is working normally since.
So, my question is: Since I don't need all the ports on the ultra dock, nor on the pro dock. Would basic dock work with W540 and 170W power adapter too?
My W540 recently became unable to charge while the laptop is running. When the laptop is off, the battery will charge completely. As soon as Windows (or Linux) boots, the charge terminates and the computer starts running off battery power. The computer will boot without the battery installed, but the computer turns off as soon as either operating system is booted (a few seconds after the desktop appears).
I have tried a different power adapter without success (both adapters are Lenovo 170W supplies) and also put a different battery in (also genunie Lenovo battery) but the issue still remained.
The laptop is still under warranty, could it be the charging circuit on the motherboard? Will I have to ship the laptop back to Lenovo for repair? I am out at sea and might have to wait a while to get back into port to be able to ship the unit back to Lenovo, so I would like to investigate other options.
I have a W540 Laptop with 170W Ultra-Dock. I have setup 3 external monitors, but can't seem to get my 3rd monitor to run at 1920x1080. Whenever I set it to that resolution and I move a window to that monitor, the window flickers and shakes.
I have my right monitor at 1920x1080 (VGA), my middle monitor at 1080x2560 (DisplayPort), and my left monitor at 1440x900 (HDMI) - this is the monitor that I can't get to work at 1920x1080.
Wondering if there is a max number of pixels that the graphics card can handle? I am using a NVIDIA Quadro K1100M 2GB graphics card.
I read on a review of that graphics card that it can support 4 monitors and up to 4K resolution (although not sure if it meant that all 4 monitors could be at 4K - I'm thinking not)
Since I've installed Windows 8.1 I have a problem with Pantone Color Calibrator. No screen is found. **bleep**? It doesn't see my laptops screen. I tried to reinstall the program but it doesn't work...
I've a new Thinkpad W540 with Windows 7 64bit. I can't see the Card Reader in the device list. When I insert a SD Card, nothing happens. All I/Os are enabled in the Bios. What can I do?
I just got a new Lenovo W540. I installed a new Samsung EVO SSD inside to replace the stock mechanical hard drive. I'm now trying to boot from a flash drive to clean install Windows. I've done this so many times before on other laptops and desktops without a problem. For some reason now it will not boot from the flash drive. It shows it as available in the BIOS but it looks like it reads it for just a second and then goes right back to the screen that allows me to choose which drive I want to put to.The same flash drive works fine in other computers to boot to.I did check to make sure the USB drive was not excluded in the BIOS and it is not.
I might have seen the numeric keypad keys work once since getting this machine, but now can't get the keys to produce numbers. Some of the keys initiate other actions not associated with numeric data entry.
I tried removing the wireless dongle for my Microsoft wireless mouse but no improvement -- I simply swapped this MS mouse from my old W510 without doing any formal install.
This doesn't appear to be a hardware problem since the keypad keys have some effect -- just not the intended effect.
