monitor/dpms: fix possible invalid state

If dpms gets immediately re-enabled, a commit could fail, not schedule any frames anymore, and the monitor would be stuck off. Fix this by adding a timer to retry if commit fails.

ref #12045

1 files changed, 3 insertions, 0 deletions

diff --git a/src/helpers/Monitor.hpp b/src/helpers/Monitor.hpp
index 687fc049..ff697725 100644
--- a/src/helpers/Monitor.hpp
+++ b/src/helpers/Monitor.hpp
@@ -68,6 +68,7 @@ struct SMonitorRule {
 class CMonitor;
 class CSyncTimeline;
 class CEGLSync;
+class CEventLoopTimer;
 
 class CMonitorState {
   public:
@@ -138,6 +139,8 @@ class CMonitor {
     bool                        m_createdByUser    = false;
     bool                        m_isUnsafeFallback = false;
 
+    SP<CEventLoopTimer>         m_dpmsRetryTimer;
+
     bool                        m_pendingFrame    = false; // if we schedule a frame during rendering, reschedule it after
     bool                        m_renderingActive = false;