I just noticed Acer made available a bios-update on 2009/10/09 that fixes the issue of controlling the backlight when using KMS on the timeline 5810T. Download bios version 2.30 and install using freedos on a usbstick.
-- brightness no more working on karmic (KMS) https://bugs.launchpad.net/bugs/397617 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