I've a sony vgn-fz-21e, and have no backlight information in /proc/acpi/video nor in /sys/class/backlight My card is a nVidia Corporation G86 [GeForce 8400M GT] (rev a1) the nouveau driver version is : git+20090724 xbacklight is also not working
I've also reported by ubuntu, apport updated a lot of additional informations/log files there : https://bugs.launchpad.net/nouveau/+bug/405387 I experience the same pb with the proprietary driver
It was working properly with the latest git version... closing...
I'm not getting any backlight support here: [ipilcher@localhost ~]$ lspci | grep VGA 01:00.0 VGA compatible controller: nVidia Corporation GT218 [NVS 3100M] (rev a2) [ipilcher@localhost ~]$ xrandr Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 LVDS-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm 1920x1080 60.0*+ 60.0 50.0 1680x1050 60.0 1400x1050 60.0 1280x1024 59.9 1280x960 59.9 1152x864 60.0 1024x768 59.9 800x600 59.9 640x480 59.4 720x400 59.6 640x400 60.0 640x350 59.8 VGA-1 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) [ipilcher@localhost ~]$ xbacklight No outputs have backlight property nouveau version is xorg-x11-drv-nouveau-0.0.16-13.20101010git8c8f15c.fc14.x86_64
Ended up here looking for a solution to "Fn+F5 and Fn+F6 don't modify brightness on Sony VAIO VPCCW (GT 230M)"[1] Posting the card details below in case they're useful to anyone. [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/551668 alex-mayorga@VPCCW1FFXL:~$ lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation GT216 [GeForce GT 230M] (rev a2) alex-mayorga@VPCCW1FFXL:~$ xrandr Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192 LVDS-1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 309mm x 174mm 1366x768 59.9*+ 1024x768 59.9 800x600 59.9 640x480 59.4 720x400 59.6 640x400 60.0 640x350 59.8 VGA-1 disconnected (normal left inverted right x axis y axis) HDMI-1 disconnected (normal left inverted right x axis y axis) alex-mayorga@VPCCW1FFXL:~$ apt-cache policy xserver-xorg-video-nouveau xserver-xorg-video-nouveau: Installed: 1:0.0.16+git20111201+b5534a1-1build2 Candidate: 1:0.0.16+git20111201+b5534a1-1build2 Version table: *** 1:0.0.16+git20111201+b5534a1-1build2 0 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status alex-mayorga@VPCCW1FFXL:~$ uname -a Linux VPCCW1FFXL 3.2.0-21-generic #34-Ubuntu SMP Fri Mar 30 04:25:35 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Re-closing this. The people who reopened posters (a) had totally different hardware, (b) did not provide any actual info, and (c) didn't add themselves to cc. If someone should still have issues regarding backlight, please file a full issue as instructed by http://nouveau.freedesktop.org/wiki/Bugs/
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.