Bug 4770 - Expose low-depth visuals through Composite
Summary: Expose low-depth visuals through Composite
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/DDX/Xorg (show other bugs)
Version: git
Hardware: All All
: high normal
Assignee: Adam Jackson
QA Contact: Xorg Project Team
Depends on:
Reported: 2005-10-13 11:09 UTC by Adam Jackson
Modified: 2018-12-13 18:27 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Description Adam Jackson 2005-10-13 11:09:15 UTC
Only four drivers actually use the overlay cores: glint, sunffb, chips, and mga.
 They're based on cfb, and as a result they don't support Render and have known
correctness and stability bugs.

The solution is to add additional visuals when Composite is active, and force
windows created on those visuals to always be composited even when no compmgr is
active.  This would provide a sort of overlay emulation for every driver using
fb, and would allow the removal of the overlay cores.
Comment 1 Daniel Stone 2007-02-27 01:28:28 UTC
Sorry about the phenomenal bug spam, guys.  Adding xorg-team@ to the QA contact so bugs don't get lost in future.
Comment 2 Adam Jackson 2008-06-25 13:38:09 UTC
This actually works fine already for visuals with non-pseudocolor depths.  With pseudocolor it's a bit tricky to get the visual and colormap created the right way around.
Comment 3 GitLab Migration User 2018-12-13 18:27:59 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/xserver/issues/136.

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