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backend/drm: disable cursor in dealloc_crtc #2168
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dealloc_crtc was destroying GBM surfaces, but the cursor_enabled flag was left as-is. When re-enabling the output, atomic_crtc_pageflip would try enabling the cursor plane, but would fail because no framebuffer is available. Closes: swaywm#2150
This makes it easier to understand which plane failed.
This was referenced May 7, 2020
ddevault
approved these changes
May 12, 2020
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dealloc_crtc was destroying GBM surfaces, but the cursor_enabled flag
was left as-is. When re-enabling the output, atomic_crtc_pageflip would
try enabling the cursor plane, but would fail because no framebuffer is
available.
Closes: #2150