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| author | srdusr <[email protected]> | 2024-08-29 21:31:00 +0200 |
|---|---|---|
| committer | srdusr <[email protected]> | 2024-08-29 21:31:00 +0200 |
| commit | 3509cf6127185d9fed5a63ceca18a003213a20d7 (patch) | |
| tree | 661e39acfebd37cbb6abaddc686df724d869b988 /crates/core/src | |
| parent | 4fb537aa4cfe52e364dbcd9a97078f0206ada54b (diff) | |
| download | srdwm-3509cf6127185d9fed5a63ceca18a003213a20d7.tar.gz srdwm-3509cf6127185d9fed5a63ceca18a003213a20d7.zip | |
Fix VT-switch resume getting stuck on a stale pending page flip
A flip issued right before a VT switch away could still be undelivered
when the session resumed - the kernel refuses a new page flip on a CRTC
with one already outstanding, which showed up live as a black screen
that never recovered across two switch attempts, with a rapid repeating
"Device or resource busy" loop in the log. Drain and apply any pending
DRM events before reasserting CRTCs and rendering again on resume, so a
stale flip from before the switch can't collide with the fresh one.
Diffstat (limited to 'crates/core/src')
0 files changed, 0 insertions, 0 deletions