Hi Pablo, sorry for responding that late. The boot option (acpi_video_strict_detect=0) is only useful in Jaunty. Karmic is less restrictive by default and from the dmesg I see that the acpi video driver detects a gfx device. So in all this looks like a different problem and it should get into a new bug report (beside this one being so big one can hardy find information). So can you please open a new bug by calling "ubuntu-bug linux" on the command line. This will gather basic information and opens the bug. Give it a description like "Acer <your laptop model>: Cannot change brightness (at all | with hotkeys)". Then attach the output of
- "sudo acpidump -o acpidump.txt" - "grep -r . /proc/acpi/video >acpi-video.txt" And finally assign me to that bug. You can also try to use "acpi_backlight=vendor" on the grub commandline and if that changes anything, please note that in the new bug as well. -- Acer: Cannot change brightness with 2.6.27-11+ kernel https://bugs.launchpad.net/bugs/333386 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
