yukijoou/kwin
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

backends/drm: wait for pending pageflips before doing a modeset

Browse source 
If we don't, KWin may get a pageflip event for an output that is already
considered as being turned off
This commit is contained in:
Xaver Hugl 2022-02-24 05:39:07 +01:00
parent 1247a7b698
commit 83d797785b
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/backends/drm/drm_gpu.cpp
View file

@ -733,6 +733,8 @@ bool DrmGpu::maybeModeset()
// commit only once all pipelines are ready for presentation // commit only once all pipelines are ready for presentation
return true; return true;
} }
// make sure there's no pending pageflips
waitIdle();
const bool ok = DrmPipeline::commitPipelines(pipelines, DrmPipeline::CommitMode::CommitModeset, unusedObjects()); const bool ok = DrmPipeline::commitPipelines(pipelines, DrmPipeline::CommitMode::CommitModeset, unusedObjects());
for (DrmPipeline *pipeline : qAsConst(pipelines)) { for (DrmPipeline *pipeline : qAsConst(pipelines)) {
if (pipeline->modesetPresentPending()) { if (pipeline->modesetPresentPending()) {