[kmscon-devel] kmscon giving a black screen, systemd thinks it's fine

Timo Paulssen timo at wakelift.de
Tue May 6 08:58:52 PDT 2014


Hello David, List,

On 05/06/2014 10:19 AM, David Herrmann wrote:
> Are you using the proprietary nvidia driver or the open-source
> nouveau driver?

This is the proprietary nvidia blob. At the moment I'm not physically
close to that computer, so I won't be able to test the flags given below
until the end of the week.


>> failed to load module: /usr/lib64/gbm/gbm_gallium_drm.so: cannot
>> open shared object file: no such file or directory ERROR:
>> uterm_drm3d_video: cannot create gbm device for /dev/dri/card0
>> (permission denied) (video_init() in src/uterm_drm3d_video.c:436)
>> ERROR: video_drm2d: driver does not support dumb buffers
>> (video_init() in src/uterm_drm2d_video.c:335)
>
> Please try using --no-hwaccel and --no-drm to make it work with the
> proprietary nvidia driver.

Until I try this, is there a way to detect that the screen is not
properly being rendered and exit kmscon with a failure exit code, so
that agetty can properly be run as a fallback by systemd?
  - Timo Paulssen
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