Bug 29139 - Framebuffer objects seem to be broken, clutter failure
Summary: Framebuffer objects seem to be broken, clutter failure
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
Depends on:
Reported: 2010-07-18 06:41 UTC by Evgeny Grablyk
Modified: 2018-06-12 19:06 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

screenshot (472.39 KB, image/png)
2010-07-18 06:41 UTC, Evgeny Grablyk
no flags Details

Description Evgeny Grablyk 2010-07-18 06:41:52 UTC
Created attachment 37171 [details]

xf86-video-ati-git, mesa-7.8.2, 2.6.34 with KMS, Radeon HD 3450 (studio 15).

Running gnome-shell-git (which uses Clutter, git version) results in pretty much broken image (screenshot attached).
At gnome-shell irc, I've been told that "framebuffer objects" seem to be broken. This can be tested by running Clutter test "clutter/tests/conform/test-cogl-offscreen".

Here is a part of gnome-shell output, it actually contains lots of errors same as following:

(mutter:9090): Cogl-glx-WARNING **: ./cogl-framebuffer.c:424: Failed to create an OpenGL framebuffer

(mutter:9090): St-CRITICAL **: setup_framebuffers: assertion `priv->old_offscreen != COGL_INVALID_HANDLE' failed

(mutter:9090): Cogl-glx-CRITICAL **: cogl_material_set_layer_combine_constant: assertion `cogl_is_material (handle)' failed

(mutter:9090): Cogl-glx-CRITICAL **: cogl_set_source: assertion `cogl_is_material (material_handle)' failed

(mutter:9090): Cogl-glx-CRITICAL **: cogl_handle_ref: assertion `handle != COGL_INVALID_HANDLE' failed
Comment 1 Alex Deucher 2010-07-18 09:20:44 UTC
Does mesa master work any better?  This patch specifically:
Comment 2 Evgeny Grablyk 2010-07-18 10:01:33 UTC
Graphics glitches are pretty much gone with mesa-master. There are slight color artifacts on window headers though (they are supposed to be dark grey): http://i.imgur.com/mjKE1.png

Font glitches persist. I am not sure if it is related to this bug, though.

Also, there is performance fall down to a slideshow with mesa-git.
Comment 3 Adam Jackson 2018-06-12 19:06:51 UTC
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.

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