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[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.-

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to compiz in Ubuntu.
https://bugs.launchpad.net/bugs/1424013

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

Status in Compiz:
  In Progress
Status in Compiz 0.9.11 series:
  Triaged
Status in compiz package in Ubuntu:
  In Progress

Bug description:
  Immediately after the fix for #269904 landed in trusty-updates via
  compiz 1:0.9.11.3+14.04.20150122-0ubuntu1, my 14.04 machine with an
  NVIDIA card and using the nvidia-304 driver became unusable -- symtoms
  include compiz process high CPU (100%), UI freeze right after logging
  in (machine still up, reachable via SSH from the network), and a flood
  of these messages on the system log:

  Feb 19 15:44:40 caracas kernel: [61380.415504] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 15:44:40 caracas kernel: [61380.509022] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 15:44:40 caracas kernel: [61380.596324] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 15:45:00 caracas kernel: [61400.576153] NVRM: Xid (PCI:0000:00:0d): 13, 001e 3141590c 00000019 00000104 00009e09 00000002
  Feb 19 15:45:00 caracas kernel: [61400.579199] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000020 Instance 00000000 Intr 00100000
  Feb 19 15:45:00 caracas kernel: [61400.581156] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000020 Instance 00000000 Intr 00100000
  Feb 19 15:45:03 caracas kernel: [61404.121869] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000002 Instance 00000000 Intr 00100000
  Feb 19 15:45:03 caracas kernel: [61404.125282] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000020 Instance 00000000 Intr 00100000
  Feb 19 15:45:06 caracas kernel: [61407.122121] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000020 Instance 00000000 Intr 00100000
  Feb 19 15:45:08 caracas kernel: [61408.576039] NVRM: Xid (PCI:0000:00:0d): 8, Channel 00000020
  Feb 19 15:45:09 caracas kernel: [61410.172039] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 15:45:17 caracas kernel: [61417.576038] NVRM: Xid (PCI:0000:00:0d): 8, Channel 00000000
  Feb 19 15:45:17 caracas kernel: [61417.852055] NVRM: Xid (PCI:0000:00:0d): 13, 0000 e0016100 0000008a 00000104 000097ef 00000002
  Feb 19 15:45:17 caracas kernel: [61417.854077] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000020 Instance 00000000 Intr 00100000
  Feb 19 15:45:32 caracas kernel: [61432.605045] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
  Feb 19 15:45:34 caracas kernel: [61434.605060] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
  Feb 19 15:45:34 caracas kernel: [61434.605085] NVRM: Xid (PCI:0000:00:0d): 3, C 00000000 SC 00000003 M 00000104 Data 00000000
  Feb 19 15:45:34 caracas kernel: [61434.612631] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 16:09:51 caracas kernel: [62891.790512] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 16:09:51 caracas kernel: [62891.888564] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 16:09:51 caracas kernel: [62892.020478] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 16:10:08 caracas kernel: [62909.312143] NVRM: Xid (PCI:0000:00:0d): 13, 001e 3141590c 00000019 00000104 00009e09 00000002
  Feb 19 16:10:08 caracas kernel: [62909.315192] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000020 Instance 00000000 Intr 00100000
  Feb 19 16:10:08 caracas kernel: [62909.317144] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000020 Instance 00000000 Intr 00100000
  Feb 19 16:10:10 caracas kernel: [62911.110191] NVRM: Xid (PCI:0000:00:0d): 13, 0000 e0016100 0000008a 00000104 000097ef 00000002
  Feb 19 16:10:10 caracas kernel: [62911.112162] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000020 Instance 00000000 Intr 00100000
  Feb 19 16:10:10 caracas kernel: [62911.134421] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000002 Instance 00000000 Intr 00100000
  Feb 19 16:10:10 caracas kernel: [62911.149813] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000002 Instance 00000000 Intr 00100000
  Feb 19 16:10:10 caracas kernel: [62911.184901] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 16:10:10 caracas kernel: [62911.230574] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 16:10:10 caracas kernel: [62911.261815] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 16:10:10 caracas kernel: [62911.296811] NVRM: Xid (PCI:0000:00:0d): 1, Channel 00000002 Method 00000060 Data beef0233
  Feb 19 16:10:10 caracas kernel: [62911.303612] NVRM: Xid (PCI:0000:00:0d): 9, Channel 00000002 Instance 00000000 Intr 00100000

  I do not experience any problems if I downgrade to the previous compiz
  version that was available in trusty-updates
  (1:0.9.11.3+14.04.20141104-0ubuntu1).

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