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authorRouven Czerwinski <rouven@czerwinskis.de>2020-01-24 19:31:39 +0100
committerSimon Ser <contact@emersion.fr>2020-01-24 19:43:51 +0100
commitf0594fb732259606c0652f5fb1b847b86a746b35 (patch)
tree58268fa79e4913ff6945a8547ecfc21ee86fda80 /docs
parent1f722f5c800b1e422ffa480710d7af7c1e7dc0c4 (diff)
backend/drm: add env variable to disable modifiers
In some cases modesets fail if the planes are initialized with modifiers. Since in this case possibly all planes need to reinitialized, which is not possible in the current wlroots design, add an environment variable for affected users.
Diffstat (limited to 'docs')
-rw-r--r--docs/env_vars.md2
1 files changed, 2 insertions, 0 deletions
diff --git a/docs/env_vars.md b/docs/env_vars.md
index 6e6f846a..48f96f7f 100644
--- a/docs/env_vars.md
+++ b/docs/env_vars.md
@@ -17,6 +17,8 @@ wlroots reads these environment variables
considered the primary DRM device.
* *WLR_DRM_NO_ATOMIC*: set to 1 to use legacy DRM interface instead of atomic
mode setting
+* *WLR_DRM_NO_MODIFIERS*: set to 1 to always allocate planes without modifiers,
+ this can fix certain modeset failures because of bandwidth restrictions.
## Headless backend