Hi On Sat, Nov 26, 2016 at 7:07 PM, Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote: > grep "card0" dmesg: > [ 5.298617] device: 'card0': device_add > [ 5.298946] PM: Adding info for No Bus:card0 > [ 6.436178] device: 'card0': device_add > [ 6.436488] PM: Adding info for No Bus:card0 > > > # ls -l /dev/dri/card0 > crw-rw---T 1 root video 226, 0 Nov 26 18:05 /dev/dri/card0 > > # ls -lt /sys/class/drm/card0/device/ > ls: cannot access /sys/class/drm/card0/device/: No such file or directory > > # ls -lt /sys/class/drm/card0/device/driver > ls: cannot access /sys/class/drm/card0/device/driver: No such file or directory Looks like vgem. Something like this should help: https://gist.github.com/dvdhrm/1bcdf4f3485aa1614a0198a7b90515e2 I wonder whether it would be more appropriate to return -ENOTSUPP rather than 0. Thanks David _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel