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drm: only disable atomic modesetting when WLR_DRM_NO_ATOMIC == 1

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Don't allow any value of the env var to disable atomic mode setting.
This commit is contained in:
Guido Günther 2018-05-03 14:05:47 +02:00
parent 2964248f42
commit 1637053ef8
1 changed files with 2 additions and 1 deletions
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3
backend/drm/drm.c
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@ -32,7 +32,8 @@ bool check_drm_features(struct wlr_drm_backend *drm) {
return false; return false;
} }
if (getenv("WLR_DRM_NO_ATOMIC")) { const char *no_atomic = getenv("WLR_DRM_NO_ATOMIC");
if (no_atomic && strcmp(no_atomic, "1") == 0) {
wlr_log(L_DEBUG, "WLR_DRM_NO_ATOMIC set, forcing legacy DRM interface"); wlr_log(L_DEBUG, "WLR_DRM_NO_ATOMIC set, forcing legacy DRM interface");
drm->iface = &legacy_iface; drm->iface = &legacy_iface;
} else if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_ATOMIC, 1)) { } else if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_ATOMIC, 1)) {