xserver-xorg-video-openchrome: Unity is slow with display glitches

[Bartosz Kosiorek]

After installation Ubuntu 12.04 Precise on VIA architecture (xserver-xorg-video-openchrome driver, without DRI support and software rendering - "swrast"), the default Shell interface is Unity. It is works terribly slow, and there is display glitches (windows do not disappear, and shadow is staying on desktop).

On the same machine with Ubuntu 11.10, the default SHell interface was Unity-2d (unity is not work at all).

Workaround:
Till the new xserver-xorg-video-openchrome driver is released (or unity will be fixed), I suggest to make Unity-2d, default shell interface for xserver-xorg-video-openchrome drivers.

[Bilal Akhtar (bilalakhtar)]

I suggest you file a new bug with xserver-xorg-video-openchrome detailing the issues you have with the driver, since those performance issues with Unity are actually driver related.

In the meantime, I'll mark this bug appropriately for the openchrome driver to be added to the Unity-3D driver blacklist.

[Timo Aaltonen (tjaalton)]

Bilal, no it's the unity blacklist failing again, it should not run 3d if the host is using swrast/llvmpipe.

[ExperiencedNoobie (techie)]

Similar problem I have. FIled a bug, no response:

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-openchrome/+bug/997451

[Daniel van Vugt (vanvugt)]

I suspect this might be an issue I reported myself in bug 1021104 (which has a workaround).

However to confirm they're the same bug, please:
    1. Install package mesa-utils
    2. Run: glxinfo | grep OpenGL
And paste the output into this bug.

[Launchpad Janitor (janitor)]

[Expired for Unity because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]

[Bartosz Kosiorek (gang65)]

Here is tghe output from glxinfo:

a@a:~$ glxinfo |grep OpenGL
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 0x300)
OpenGL version string: 2.1 Mesa 8.0.2
OpenGL shading language version string: 1.20
OpenGL extensions:

[Daniel van Vugt (vanvugt)]

Thanks. The "glitches" problem is bug 1021104. And the slowness is expected using llvmpipe.