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After installing Fedora 14 on my Lenovo ThinkPad T410 the screen brightness has been an issue. The fn+home/end keys still adjust the brightness, but the max brightness seems to be ...
- 01-31-2011 #1Just Joined!
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- Jul 2009
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- 8
Backlight Issues
After installing Fedora 14 on my Lenovo ThinkPad T410 the screen brightness has been an issue. The fn+home/end keys still adjust the brightness, but the max brightness seems to be very, very low.
I've googled the problem and as recommended tried changing values in /sys/class/backlight but even after changing write permissions was not able to get anything done...
This problem is beginning to affect my classwork (i.e. TA's reading code, grading programs on my machine)
Any help would be appreciated
-zad
- 02-01-2011 #2Linux Engineer
- Join Date
- Apr 2009
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- 1,229
Hi zad!
(sorry about that)
I had some issues with backlight in linux kernels 2.30.xx and above. This is known bug. I also have a Lenovo G430 and my hotkeys does not allow me to adjust brightness.
I used to execute
and it used to work but when the kernel got upgraded, I lost control. That's why I use Mint 7 and Ubuntu 9.04 since it is using the 2.28.xx but the downside is that this releases are no longer distributed.Code:xrandr --output LVDS --set BACKLIGHT_CONTROL native
Good luck! Last edited by nujinini; 02-01-2011 at 03:17 PM.
nujinini
Linux User #489667
- 02-01-2011 #3Just Joined!
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- Jul 2009
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Zed...?
Zad...
^Did not help at all. It appeared x stopped then restarted, but it did not fix the max brightness problem...Code:xrandr --output LVDS --set BACKLIGHT_CONTROL native
Not sure what else to try. Any other suggestions?
-Zad
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