Ubuntu
gnome-power-manager package

  1. Bug #524967
  2. Comment #6

Comment 6 for bug 524967

Revision history for this message
ozhan (ozhankaraman) wrote :

Hi;
I am using VPCYS1E (Y Series) Sony Vaio notebook, I am using Ubuntu 9.04 with 2.6.31-20-generic kernel. I am also experiencing same issue, i couldn't control screen brightness with any of gnome and linux tools . I have tried disabling Acpi from kernel also tried acpi_backlight=vendor but nothing changed. I have tried 2.6.32 kernel but again no result. Now my boot log shows me the log below.

Thanks
Özhan

[ 15.538551] sony-laptop: brightness ignored, must be controlled by ACPI video driver