When starting X server with 3.17.2 it fails with: (EE) RADEON(0): [drm] Failed to open DRM device for pci:0000:01:00.0: Inappropriate ioctl for device. The same configuration starts correctly with 3.16.6.
Versions: xserver - 1.16.1, xf86-video-ati - 7.5.
Created attachment 109470 [details]
Xorg.0.log with 3.17.2
Created attachment 109471 [details]
Xorg.0.log with 3.16.6
Created attachment 109472 [details]
dmesg with 3.17.2
Created attachment 109473 [details]
dmesg with 3.16.6
Can you bisect the kernel?
I've tried to bisect only to find that vanilla kernels work fine. I've built my distro kernel with most of it's patches removed (keeping only essential ones) and it also works fine. So I suppose this bug does not belong here.