diff options
author | Simon Ser <contact@emersion.fr> | 2022-10-17 12:29:38 +0200 |
---|---|---|
committer | Simon Zeni <simon@bl4ckb0ne.ca> | 2022-10-17 15:14:02 +0000 |
commit | 98a83ce14c96f4727791e9a63fd606fdcaa008fc (patch) | |
tree | 1bb6ad766e333d9885088bbdf87d1f71c3bd0668 /backend | |
parent | ca432ea539614a1e321824c90d81f663f88298ef (diff) |
backend/drm: fix EINVAL atomic commits after VT switch
The drm_connector_commit_state() call in handle_session_active()
was not resulting in any atomic commit, because it didn't match any
of the if branches: active = true, no new buffer was committed,
and adaptive sync/gamma LUT were unchanged. Thus the commit was a
no-op.
Later on, when the compositor performs regular page-flips, the
kernel would return EINVAL indicating that a modeset was needed.
Rework the logic to use a non-blocking page-flip commit if a buffer
was committed, and use a blocking commit if the connector is on or
is being disabled. The only case where we should skip the atomic
commit is when disabling (active = false) an already-disabled
connector (conn->crtc == NULL).
Note, 6936e163b514 ("backend/drm: short-circuit no-op commits")
has introduced early returns for other situations where we don't
need to perform an atomic commit (e.g. updating scale or transform
of an output).
Fixes: f216e979836a ("backend/drm: drop drm_connector_set_mode()")
Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3432
Diffstat (limited to 'backend')
-rw-r--r-- | backend/drm/drm.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c index 24b31c8b..b54919d9 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -592,18 +592,11 @@ bool drm_connector_commit_state(struct wlr_drm_connector *conn, } } - if (!pending.active) { - if (conn->crtc != NULL && !drm_crtc_commit(conn, &pending, 0, false)) { - return false; - } - } else if (pending.base->committed & WLR_OUTPUT_STATE_BUFFER) { + if (pending.base->committed & WLR_OUTPUT_STATE_BUFFER) { if (!drm_crtc_page_flip(conn, &pending)) { return false; } - } else if (pending.base->committed & (WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED | - WLR_OUTPUT_STATE_GAMMA_LUT)) { - assert(conn->crtc != NULL); - // TODO: maybe request a page-flip event here? + } else if (pending.active || conn->crtc != NULL) { if (!drm_crtc_commit(conn, &pending, 0, false)) { return false; } |