Thanks a million for your tests and comment, R.Ruback. This is one the most annoying bugs for me currently. Looking for differences between your and my setup. I found in /etc/default/acpi-support
USE_DPMS=true
HIBERNATE_MODE=shutdown
and
RADEON_LIGHT=true (commented out on my machine)
I believe I have never touched this file, so that should be what is shipped. AFAIK, xorg.conf is not needed anymore for recent xorg. Can you try with an empty xorg.conf or move it out of the way? I will also try and do some tests with your changes and report back.
Thanks a million for your tests and comment, R.Ruback. This is one the most annoying bugs for me currently. Looking for differences between your and my setup. I found in /etc/default/ acpi-support
USE_DPMS=true MODE=shutdown
HIBERNATE_
and
RADEON_LIGHT=true (commented out on my machine)
I believe I have never touched this file, so that should be what is shipped. AFAIK, xorg.conf is not needed anymore for recent xorg. Can you try with an empty xorg.conf or move it out of the way? I will also try and do some tests with your changes and report back.