** Also affects: mir (Ubuntu)
Importance: Undecided
Status: New
** Changed in: mir (Ubuntu)
Importance: Undecided => Medium
** Changed in: mir (Ubuntu)
Status: New => Triaged
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Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1447896
Title:
Fullscreen bypassed clients stutter with double buffers when other
clients are running
Status in Mir:
Fix Committed
Status in mir package in Ubuntu:
Triaged
Bug description:
Fullscreen bypassed clients stutter with double buffers when other
clients are running.
1. mir_demo_server_minimal --nbuffers=2
2. mir_demo_client_egltriangle -q &
3. mir_demo_client_egltriangle -f
Expected: A fullscreen triangle rendering smoothly.
Observed: A fullscreen triangle stuttering.
Strangely the problem only occurs with multiple clients. Like the
extra load is causing a delay in the return of buffers to the
fullscreen client. It doesn't happen if you only have one client
running.
Workarounds:
(A) Move/resize the fullscreen surface (Alt+drag) so that it is not using
bypass any more; or
(B) --nbuffers=3
(C) --bypass=off
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