unity dash under mir is extremely slow

[krishnan sampath]

i installed mir display server through the ppa on http://unity.ubuntu.com/mir/installing_prebuilt_on_pc.html after following all instructions, even restarted lightdm, installed ubuntu fresh and installed mir again and this time rebooted the system. i must say.. its a tad less smooth than x as there is a very slight but noticeable delay in performance of the desktop. However, thats not the point
the dash is sllllllllllooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooowwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww.. its so slow i made tea and drank it cold and it was still loading up. it loads up alright.. for the first time since i installed ubuntu roughly 2 years back, i am lauching apps through the terminal. Overall, GOOD job.. But please fix the dash asap.. Thanks and have a nice day :)

[krishnan sampath (tskrishnan)]

please do note that i didnt know which package to file the bug on.. i selected i don't know but it seems to default to the previous package that i reported a bug on.

[Timo Jyrinki (timo-jyrinki)]

Not sure whether mir or unity is correct target, but at least it's not qtdeclarative-opensource-src (Unity 7 doesn't use Qt).

[Stephen M. Webb (bregma)]

Slow dash rendering is a hallmark of software-only rendering. This was a problem for a brief while in Mir due to permission problems with the direct rendering interface. Unity can not control how the graphics stack chooses its acceleration path so I'm marking this as invalid for Unity.

[Daniel van Vugt (vanvugt)]

Krishnan,

Could you please:
1. Reproduce the slowdown, and then without logging out...
2. Copy /var/log/Xorg.0.log, and attach it here
3. Copy .xsession-errors from your home directory, and attach it here.
4. Run: glxinfo | grep OpenGL
    and attach the output here.

[krishnan sampath (tskrishnan)]

thanks for replying. I'm currently held up with some personal work and can only attach the logs by Friday at the earliest.
have a nice day:)

[krishnan sampath (tskrishnan)]

output of glxinfo | grep OpenGL:

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) 945G x86/MMX/SSE2
OpenGL version string: 2.1 Mesa 9.2.0
OpenGL shading language version string: 1.20
OpenGL extensions:

[Daniel van Vugt (vanvugt)]

Krishnan,

Please follow the instructions in comment #4 again. Be sure to do the steps while still logged into the slow Mir session. Your log file in comment #6 seems to have come from a non-Mir session. It shows you were not running XMir at the time.

[krishnan sampath (tskrishnan)]

these are the only log files i have. i did a reinstall yesterday as my ubuntu desktop had become very unusable. it restarted very 5 seconds and the overall feel is slow. After the reinstall, there are no restarts till now.. but the desktop is pretty slow and the dash is as slow as when i reported the bug

[krishnan sampath (tskrishnan)]

output of glxinfo | grep OpenGL:

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) 945G x86/MMX/SSE2
OpenGL version string: 2.1 Mesa 9.2.0
OpenGL shading language version string: 1.20
OpenGL extensions:

[Daniel van Vugt (vanvugt)]

OK, XMir is still not mentioned in the logs. So you're not using Mir and this is just a Unity issue.

[Edwin Pujols (edwinpm5)]

Does the workaround in:

  https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1222602/comments/6

work for you?

[krishnan sampath (tskrishnan)]

Finally.. Yes it did. It works as it should
Thanks a ton :)

[Daniel van Vugt (vanvugt)]

I think this is probably the same issue as bug 1195692.

How much RAM does your system have?