Confirming this also for an Acer Aspire TimelineX 3820TG Linux ubuntu 2.6.32-23-generic #37-Ubuntu SMP Fri Jun 11 08:03:28 UTC 2010 x86_64 GNU/Linux (Kubuntu) System Bios v 1.13
Buttons on keyboard will bring up the On-screen slider and act 'vobbly' without effect. Software sliders has no effect (but will update values in /sys/class/backlight/ ) The setpci command referenced earlier did not have any visible effect. The "acpi_backligt=vendor" grub command had no visible effect The only working solution for me now is to modify grub with "acpi-osi=" This will enable (give effect to) buttons on keyboard, but software will still not modify backlight. And brightness is not adjusted when pulling out the AC power. I have not seen any other effects of the "acpi-osi=". -- Screen brightness can not be adjusted in Lucid with Intel Arrandale graphics https://bugs.launchpad.net/bugs/573984 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
