I'm trying to get my Intel HD 4400 and AMD Radeon 8670M working with the open source drivers. If I boot with an
xorg.conf that includes:
Section "Device" Identifier "Intel Graphics" Driver "intel" BusID "PCI:0:2:0" EndSection Section "Device" Identifier "8670M" Driver "radeon" BusID "PCI:6:0:0" EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Intel Graphics" EndSection
Then I don't have a problem, but if I try and set the "Default Screen" to use the "8670M" device, I boot only into low graphics mode.
I am also getting various messages in
kern.log such as
radeon 0000:06:00.0: No connectors reported connected with modes
Xorg.0.log gives similar sounding messages
Radeon no outputs connected,
unable to definitely find connected outputs,
Radeon(0): No modes,
no screens found.
Anyone have any ideas?