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drm: atomic: Avoid device busy when flipping after creating a new window

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Task-number: QTBUG-122663
Change-Id: I168930428e8d09a9a042401460d678e20f3b82d5
Pick-to: 6.6 6.5
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
(cherry picked from commit 0a3b5042a566afa4dc5162f469eb0d8be3120933)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Laszlo Agocs 2024-03-01 15:53:48 +01:00 committed by Qt Cherry-pick Bot
parent bfb6f4e86c
commit e3b2386dd7
1 changed files with 6 additions and 2 deletions
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8
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
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@ -176,10 +176,14 @@ gbm_surface *QEglFSKmsGbmScreen::createSurface(EGLConfig eglConfig)
void QEglFSKmsGbmScreen::resetSurface() void QEglFSKmsGbmScreen::resetSurface()
{ {
m_flipPending = false; m_flipPending = false; // not necessarily true but enough to keep bo_next
m_gbm_bo_current = nullptr; m_gbm_bo_current = nullptr;
m_gbm_bo_next = nullptr;
m_gbm_surface = nullptr; m_gbm_surface = nullptr;
// Leave m_gbm_bo_next untouched. waitForFlip() should
// still do its work, when called. Otherwise we end up
// in device-is-busy errors if there is a new QWindow
// created afterwards. (QTBUG-122663)
} }
void QEglFSKmsGbmScreen::initCloning(QPlatformScreen *screenThisScreenClones, void QEglFSKmsGbmScreen::initCloning(QPlatformScreen *screenThisScreenClones,