Martin: With acpi_backlight=vendor and writing to toshiba/brightness after resume the backlight actually turns on, but leaves me with an empty screen. Xorg shows the following log entries:
[ 211.813] (WW) intel(0): flip queue failed: Invalid argument [ 211.813] (WW) intel(0): Page flip failed: Invalid argument I can change to a still working console and back to X, but X stays blank. By killing X I get back a working X server. The Fn-F6/7 keys still manipulate the intel_backlight interface and the screen brightness is changed thereby. Seth: Without acpi_backlight=vendor nothing has changed. There isn't any difference between writing to toshiba/brightness manually or by script. The behaviour of the three interfaces is the same as before, see comment #33. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/935778 Title: Various Toshiba laptops - brightness controls work on first boot, but do nothing after suspend/resume to RAM. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/935778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
