Comment 7 for bug 1302270
Revision history for this message
| Steve Langasek (vorlon) wrote Re: [Bug 1302270] Re: [regression] Poor performance with recent update with i965: libGL error: failed to open drm device: Permission denied | #7 |
On Fri, Apr 04, 2014 at 03:17:38AM -0000, Jamie Strandboge wrote:
> $ ls -l /dev/dri/
> total 0
> crw-rw---- 1 root video 226, 0 Apr 3 19:38 card0
> crw-rw---- 1 root video 226, 64 Apr 3 19:38 controlD64
> This seems to be normal. I also was not in the video group, however if I
> add myself to the video group, logout and back in, then I don't have the
> .xsession-errors and I unity7 is responsive again. Not sure what would
> cause me to have to be in the video group all of a sudden, but it does
> seem to be a workaround.
"Normal" is that the permissions on /dev/dri/card0 are managed with setfacl.
I believe this is done as part of logind. What version of systemd-services
did you have installed? Perhaps this is related to the logind/cgmanager
regression seen in systemd 204-5ubuntu14/15 (fixed in -5ubuntu16)?
--
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