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VuDu

Member

Registered: 2007-05-11

Posts: 95

brightness controls gone mad with lastest -Syu

Hello.
I have an ASUS M51VA with an ATI HD3650.
Recently, when I updated my system it installed latest gnome and kernel packages.
After that I lost control of the brightness FN keys, which I previously used with the help of lapsus and worst of all, the brightness has gone crazy! It keeps blinking, slowly increasing or decreasing, then it stays stable for some time but then it get all crazy again.
Right now I can barely see what I'm typing, but when I started this post it was blinking.

Here's the pacman log:
http://www.pastebin.ca/1620546 (please consider the update at 13:XX, after that I tried other graphics drivers).

ngsupb

Member

Registered: 2009-07-29

Posts: 57

Website

Re: brightness controls gone mad with lastest -Syu

I had a problem with brightness on Intel card. In my case it was fixed by upgrading kernel. But it was on 2.6.30 or so, don't remember

VuDu

Member

Registered: 2007-05-11

Posts: 95

Re: brightness controls gone mad with lastest -Syu

My problems started when I restarted right after the update.
I'm afraid it might damage the backlighting system because it's always changing the brightness level.
This doesn't seem good for the eyes and less for the screen.

Does anyone at least can help me on how to make it brighter?
I used lapsus, but it's no longer working. I already tried changing lapsus settings through dbus, but with no luck.

$ cat /proc/acpi/video/VGA/LCDD/brightness 
levels:  0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
current: 1

It's always on 1, even when the screen is at the highest brightness level.

# xbacklight -inc 25%
No outputs have backlight property

# echo "10" > /sys/class/backlight/acpi_video0/brightness

Does nothing.

Also tried to add  "acpi_backlight=vendor" in the end of the kernel line, but didn't make any difference.

Here I have a small video capturing the center of the screen. That's not me playing with the controls or the camera ajusting to lightning conditions, it's the backlight goofing me around!!!
http://www.mediafire.com/download.php?z4mi4uzidjn

Last edited by VuDu (2009-10-15 20:41:12)

VuDu

Member

Registered: 2007-05-11

Posts: 95

Re: brightness controls gone mad with lastest -Syu

Ok, so today I installed kernel26-lts and the backlight controls work fine with that kernel. So it's definitely a .31 issue.