compiz team mailing list archive

[Eloy Paris <1424013@xxxxxxxxxxxxxxxxxx>]

Hi Christopher,

On Fri, Feb 20, 2015 at 06:51:23PM -0000, Christopher Townsend wrote:

> Hi Eloy,
> 
> Could you open CCSM and disable the X11 Sync and see if the issue still
> occurs?
> 
> CCSM->OpenGL and uncheck "X11 Sync objects"

I am sorry for the delay in getting back to you on this. I suspect that
by now you have a pretty good idea of what is going on but I still went
ahead and made the change that you requested -- I can confirm that I can
use the latest version of Compiz in trusty-updates on the machine I was
having problems if I disable "X11 Sync objects".

The reason for the delay is that this machine is used by three other
users so I needed to find a way to make the change from the CLI so
"X11 Sync objects" is disabled for all of them at login time because
otherwise they couldn't even run CCSM because the GUI is frozen.

For reference, I accomplished this by creating /etc/dconf/profile/user
with the following contents:

user-db:user
system-db:system-wide

Then I created /etc/dconf/db/system-wide.d/00_compiz_site_settings with
these contents:

[org/compiz/profiles/unity/plugins/opengl]
enable-x11-sync=false

and then I ran "dconf update".

Anyway, is there a performance penalty by running with enable-x11-sync
disabled? Just wondering if I should go back to the previous Compiz
version or if it's okay to run the latest plus this workaround.

Cheers,

Eloy Paris.-

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https://bugs.launchpad.net/bugs/1424013

Title:
  Compiz high CPU and UI freeze on NVIDIA after fix for #269904 in
  trusty-updates

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