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Merge pull request #1479 from emersion/lost-crtc-state

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backend/drm: fix state for outputs loosing their CRTC
This commit is contained in:
Drew DeVault 2019-01-20 09:02:00 -05:00 committed by GitHub
commit 0db2a687b7
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 20 additions and 5 deletions
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15
backend/drm/drm.c
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@ -391,6 +391,8 @@ static void attempt_enable_needs_modeset(struct wlr_drm_backend *drm) {
if (conn->state == WLR_DRM_CONN_NEEDS_MODESET &&
conn->crtc != NULL && conn->desired_mode != NULL &&
conn->desired_enabled) {
wlr_log(WLR_DEBUG, "Output %s has a desired mode and a CRTC, "
"attempting a modeset", conn->output.name);
drm_connector_set_mode(&conn->output, conn->desired_mode);
}
}
@ -981,8 +983,17 @@ static void realloc_crtcs(struct wlr_drm_backend *drm, bool *changed_outputs) {
i++;
struct wlr_output_mode *mode = conn->output.current_mode;
if (conn->state != WLR_DRM_CONN_CONNECTED || !changed_outputs[i]
|| conn->crtc == NULL) {
if (conn->state != WLR_DRM_CONN_CONNECTED || !changed_outputs[i]) {
continue;
}
if (conn->crtc == NULL) {
wlr_log(WLR_DEBUG, "Output has %s lost its CRTC",
conn->output.name);
conn->state = WLR_DRM_CONN_NEEDS_MODESET;
wlr_output_update_enabled(&conn->output, false);
conn->desired_mode = conn->output.current_mode;
wlr_output_update_mode(&conn->output, NULL);
continue;
}

8
types/wlr_output.c
View file

@ -173,8 +173,12 @@ bool wlr_output_set_custom_mode(struct wlr_output *output, int32_t width,
void wlr_output_update_mode(struct wlr_output *output,
struct wlr_output_mode *mode) {
output->current_mode = mode;
wlr_output_update_custom_mode(output, mode->width, mode->height,
mode->refresh);
if (mode != NULL) {
wlr_output_update_custom_mode(output, mode->width, mode->height,
mode->refresh);
} else {
wlr_output_update_custom_mode(output, 0, 0, 0);
}
}
void wlr_output_update_custom_mode(struct wlr_output *output, int32_t width,