Ubuntu
acpi-support package

  1. Bug #279163
  2. Comment #7

Comment 7 for bug 279163

Revision history for this message
rekado (rekado) wrote :

I'm now on Arch and with a very simple installation the error is the same. As soon as acpid is loaded the brightness cannot be changed anymore.

cat /proc/acpi/video/IGD/LCD/info

yields following output

device_id: 0x0110
type: UNKNOWN
known by bios: no