After upgrading to 3.16.0 from -rc2, I cannot start X any more. Log file of starting X with both kernels attached. The important differences is the following: (EE) intel(0): [drm] failed to set drm interface version: Permission denied [13]. (EE) intel(0): Failed to claim DRM device. (II) UnloadModule: "intel" (EE) Screen(s) found, but none have a usable configuration. in the log file with 3.16.0. What can this be? Any ideas? Thank you!
Created attachment 104312 [details] log file with 3.16.0 (fails)
Created attachment 104313 [details] log file with 3.16.0rc2 (succeeds)
It seems that a "drm-linux-next" as of 20140808 (instead of drm-linux-nightly as of 20140807) fixes this problem, X starts up again.
Usually this is due to a race in the master takeover. If you update xf86-video-intel to commit dea65e8be73b79c50f7ee59c54c4c75cbcff67fb Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Sat Aug 9 07:12:23 2014 +0100 intel: Log open clients on master takeover fail and apply http://patchwork.freedesktop.org/patch/31388/ to your kernel X should grab all the information I need to identify the guilty party. Even just updating xf86-video-intel should be enough to confirm this hypothesis.
Oh -nightly not 3.16.0. Yeah, that was a temporary bug.
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