View Full Version : [ubuntu] Brightness Control Help c751nr

April 23rd, 2008, 08:52 PM
Hello all. I recently upgraded from Gusty to Hardy. Before the upgrade I could set my backlight brightness on my Compaq C751nr laptop just fine with the softkeys and with the power control panel. After the upgrade I cannot set brightness period. I really do not want to go back to 7.10 because my audio problems I had were fixed (thankfully). Do you think that when the final release comes out that my backlight settings will work, or am I just out of luck?

April 29th, 2008, 04:46 PM
I have the same problem:

Can't change the display brightness and it doesn't automatically change when I unplug the laptop from the power supply
Function keys don't work for turning the audio up or down either

April 29th, 2008, 04:51 PM

search for "Displaycalibrator"

you get gamma correction

it's a good temporary fix, but it doesn't really fix the brightness as I realized.

April 30th, 2008, 10:13 PM
any other ideas? It worked fine in 7.10

August 6th, 2008, 03:15 PM
See this post:


It worked on my Compaq C751NR laptop, as described.