Ubuntu
linux package

  1. Bug #1098216
  2. Comment #146

Comment 146 for bug 1098216

Revision history for this message
In , seth (seth-linux-kernel-bugs) wrote :

I'm not seeing any way to fix this other than doing some sort of quirking for the affected machines.

One option add a quirk to keep the kernel from claiming to be Windows 8. There are other places in the ACPI tables where behavior will be affected, but since folks have been running older kernels successfully on these machines I suspect everything should work okay.

The other option I can think of is to quirk acpi-video so that it will only use the brightness values that actually work. I don't see any way to do this without hard coding firmware implementation details into the driver though, which is ugly.

Any other ideas?