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"Atomic commit failed (modeset): Invalid argument" after switching to Gnome and backward

Created by: versusvoid

Reproduced as (assuming Gnome is already running)

  1. Start rootston from tty
  2. Switch to Gnome Screen blinks. Looks like Gnome makes clean DRM initialization.
  3. Switch back Gnome interface will be left frozen on screen.

Rootston log says:

2017-10-05 07:48:52 - [backend/drm/backend.c:80] DRM fd paused
2017-10-05 07:48:55 - [backend/drm/backend.c:65] DRM fd resumed
2017-10-05 07:48:55 - [backend/drm/atomic.c:57] VGA-1: Atomic commit failed (modeset): Invalid argument
2017-10-05 07:48:55 - [backend/drm/atomic.c:57] HDMI-A-1: Atomic commit failed (modeset): Invalid argument

Not reproduced with weston or xfwm4. But when switching from Gnome to weston or xfwm4 screen also blinks, so maybe they detect such situations and make clean DRM initialization too.

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