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native/gpu: Handle drmModeSetCrtc() failing gracefully

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If drmModeSetCrtc() is called with no fb, mode or connectors for some
CRTC it may still fail, and we should handle that gracefully instead of
assuming it failed to set a non-disabled state.

Closes https://gitlab.gnome.org/GNOME/mutter/issues/70


(cherry picked from commit 6e953e2725d5d5b10d14c7bd479bd99f6853addc)
This commit is contained in:
Jonas Ådahl 2018-04-24 09:26:33 +00:00 committed by Marco Trevisan
parent 62660bbd15
commit 44682a2cc5
1 changed files with 4 additions and 1 deletions
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5
src/backends/native/meta-gpu-kms.c
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@ -143,7 +143,10 @@ meta_gpu_kms_apply_crtc_mode (MetaGpuKms *gpu_kms,
connectors, n_connectors,
mode) != 0)
{
g_warning ("Failed to set CRTC mode %s: %m", crtc->current_mode->name);
if (mode)
g_warning ("Failed to set CRTC mode %s: %m", crtc->current_mode->name);
else
g_warning ("Failed to disable CRTC");
g_free (connectors);
return FALSE;
}