Adjust brightness doesn't work
My 'Adjust Brightness' doesn't work. I want my display at full brightness when plugged but it just doesn't want to display the change after I do it. I also tested if I can change the brightness when on battery and no response.
What can be causing this?
What can be causing this?
John
Does your laptop have another power manager installed? If so, try uninstalling it. My T61p WIndows 7 Pro Thinkpad works fine for brightness. I use the Windows power manager, but have the Lenovo power manger installed also and it is not conflicting. ... Thinkpads_User
just to make sure. You are using your function key in combination with your brightness up and down keys?
ASKER
I have a HP ProBook. I used the function key-up/down as documented in manual and it doesn;t work. I go directly to the power option screen and move the "slider" and no effect.
Since it is Windows 7, it must be fairly new. Have you called HP Support? After all, it seems like a strange problem in that I am fairly sure it is not a Windows 7 problem. ... Thinkpads_User
option 1: run hp update tool and see if it gives you any updates.
I am guessing here but when you bought your laptop it had Vista on it with free upgrade to Win 7?
option 2. go to http://welcome.hp.com/country/uk/en/support.html and enter your laptop's model NO and see if there is any new software available (see published dates)
I am guessing here but when you bought your laptop it had Vista on it with free upgrade to Win 7?
option 2. go to http://welcome.hp.com/country/uk/en/support.html and enter your laptop's model NO and see if there is any new software available (see published dates)
ASKER
Yes it had Vista, I upgraded Windows 7.
ASKER CERTIFIED SOLUTION
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The other driver to possibly update is the graphics card driver.
ASKER
ok... will do. I'll go thru the update process and inform you guys.
I think you need to download and install the Windows 7 version of HP Quick Launch Buttons (if you haven't done this already).
iv
iv
My own Thinkpad came with Vista Business 64-bit, and when I installed Windows 7 Pro 64-bit (retail copy), I had to replace *all* the drivers with Windows 7 drivers from Lenovo. So do make sure you get *every* driver there is (some of my drivers are inter-dependent). ... Thinkpads_User