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eglfs: Make the logs from atomic support usable

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Atomic being supported and atomic being requested are two different things.
(the latter is only true when QT_QPA_EGLFS_KMS_ATOMIC is set)

Log accordingly since this can be very important to know when investigating
problems.

Change-Id: I6947d18e7c0eaef3fe160095cb046770f9c93efe
Reviewed-by: Johan Helsing <johan.helsing@qt.io>
This commit is contained in:
Laszlo Agocs 2019-04-12 10:38:48 +02:00
parent 9bb5491c06
commit f6f0a9f3f6
1 changed files with 10 additions and 4 deletions
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14
src/platformsupport/kmsconvenience/qkmsdevice.cpp
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@ -581,10 +581,16 @@ void QKmsDevice::createScreens()
#if QT_CONFIG(drm_atomic)
// check atomic support
m_has_atomic_support = !drmSetClientCap(m_dri_fd, DRM_CLIENT_CAP_ATOMIC, 1)
&& qEnvironmentVariableIntValue("QT_QPA_EGLFS_KMS_ATOMIC");
if (m_has_atomic_support)
qCDebug(qLcKmsDebug) << "Atomic Support found";
m_has_atomic_support = !drmSetClientCap(m_dri_fd, DRM_CLIENT_CAP_ATOMIC, 1);
if (m_has_atomic_support) {
qCDebug(qLcKmsDebug, "Atomic reported as supported");
if (qEnvironmentVariableIntValue("QT_QPA_EGLFS_KMS_ATOMIC")) {
qCDebug(qLcKmsDebug, "Atomic enabled");
} else {
qCDebug(qLcKmsDebug, "Atomic disabled");
m_has_atomic_support = false;
}
}
#endif
drmModeResPtr resources = drmModeGetResources(m_dri_fd);