[regression] Multi-monitor frame sync no longer works (not synchronized).
Test case:
1. Start a multi-monitor server: mir_demo_server_shell --display-config sidebyside
2. Start a client: mir_demo_client_egltriangle
3. Move the client (Alt+drag) so it overlaps both monitors simultaneously.
Expected: Client keeps reporting 60 FPS
Observed: Client speeds up to 120 FPS.
[regression] Multi-monitor frame sync no longer works (not synchronized).
Test case:
mir_demo_ server_ shell --display-config sidebyside
mir_demo_ client_ egltriangle
1. Start a multi-monitor server:
2. Start a client:
3. Move the client (Alt+drag) so it overlaps both monitors simultaneously.
Expected: Client keeps reporting 60 FPS
Observed: Client speeds up to 120 FPS.