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Fix error when reconnecting external display

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Reconnecting an external display fails on initial
page-flip.  This occurs when the pageflip_pending flag
has been set on the connector at the time the monitor
is removed.  Once the connector's CRTC has been deallocated,
page_flip_handler cannot find the connector by its crtc_id,
so pageflip_pending will remain set.  This causes
initialization to fail when the monitor is reconnected
with the error messages:

    Skipping pageflip on output 'X'
    Failed to initialize renderer on connector 'X': initial page-flip failed

To fix this problem, clear the pageflip_pending flag
when cleaning up the connector.
This commit is contained in:
Will Daly 2020-05-01 06:15:40 -07:00 • committed by Simon Ser
parent 22d345d982
commit 044a9f28d6
1 changed files with 1 additions and 0 deletions
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1
backend/drm/drm.c
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@ -1677,6 +1677,7 @@ static void drm_connector_cleanup(struct wlr_drm_connector *conn) {
dealloc_crtc(conn); dealloc_crtc(conn);
conn->possible_crtc = 0; conn->possible_crtc = 0;
conn->desired_mode = NULL; conn->desired_mode = NULL;
conn->pageflip_pending = false;
wlr_signal_emit_safe(&conn->output.events.destroy, &conn->output); wlr_signal_emit_safe(&conn->output.events.destroy, &conn->output);
break; break;
case WLR_DRM_CONN_DISCONNECTED: case WLR_DRM_CONN_DISCONNECTED: