Zero Brightness Bug - ASUS X54C Laptop

skulleagle

Estimable
Jan 31, 2015
1
0
4,510
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There's a weird thing going on my laptop since I removed Windows 7 from it. Whenever I lower my laptop's screen brightness to zero/minimum level, the screen turns OFF. I had a dual boot system of Windows 8.1 and Windows 7, and for some reason I had to remove W7 and install Ubuntu in place of it. So I went to Windows 8.1 and formatted the drive that had Windows 7. Everything went fine and I installed Ubuntu. But after the installation and a reboot, I went to W8.1, and the screen turned off/black. I figured out after sometime that the screen is actually on, it's just the brightness that has gone all the way to zero. I somehow managed to turn on the screen. But now when I lower the brightness with Fn Keys or the brightness slider, it again turns off the screen. Before I thought this was happening only in Windows, so I went to Ubuntu, turned the brightness low again, and the same thing happened again. Since the problem is sort of universal on all operating systems, I think this is not a driver issue.
So can anyone help me with this thing, because I think the display might be broken in some way or the other, physically. Do I need to go to the service center or this can be easily fixed?
 

darkbreeze

Honorable
Moderator
I'd first try resetting the BIOS or possibly even updating the BIOS firmware if a newer version is available.

If that does nothing, I'd say there is a hardware issue with the panel. Is there any reason you're manually turning the brightness down to the point where it turns off? Some reason why you don't just leave it turned up? I've owned about fifty different laptops and about ten tablets and have never found it necessary to turn the screen brightness down manually.

If you simply are trying to preserve battery life when it's not connected to AC power, you can set that to adapt in the power settings in control panel.

It seems unusual though that it also does it in Ubuntu, so it's surely a firmware or hardware issue, but if it doesn't do it unless you turn it all the way down, don't turn it all the way down.
 

darkbreeze

Honorable
Moderator
I'd first try resetting the BIOS or possibly even updating the BIOS firmware if a newer version is available.

If that does nothing, I'd say there is a hardware issue with the panel. Is there any reason you're manually turning the brightness down to the point where it turns off? Some reason why you don't just leave it turned up? I've owned about fifty different laptops and about ten tablets and have never found it necessary to turn the screen brightness down manually.

If you simply are trying to preserve battery life when it's not connected to AC power, you can set that to adapt in the power settings in control panel.

It seems unusual though that it also does it in Ubuntu, so it's surely a firmware or hardware issue, but if it doesn't do it unless you turn it all the way down, don't turn it all the way down.
 
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