Comment # 51 on bug 1004453 from Felix Miata

Startx works, but KDM3 does not. From kdm.log:
xf86TokenToOptinfo: table is NULL
xf86TokenToOptinfo: table is NULL
error setting MTRR (base = 0xf4000000, size = 0x02000000, type = 1) Invalid
argument (22)
error setting MTRR (base = 0xf4000000, size = 0x02000000, type = 1) Invalid
argument (22)
modprobe: FATAL: Module mga not found in directory
/lib/modules/4.10.4-1-default
error setting MTRR (base = 0xf4000000, size = 0x02000000, type = 1) Invalid
argument (22)
(II) Server terminated successfully (0). Closing log file.
/usr/bin/Xorg: symbol lookup error: /usr/lib/libLLVMAMDGPUCodeGen.so.3.9:
undefined symbol:
_ZN4llvm19MachinePassRegistry6RemoveEPNS_23MachinePassRegistryNodeE