Wondering if it is scheduled yet. I have same issue:
------------------8<-------------------------------------------------------------------
Tasks: 252 total, 2 running, 249 sleeping, 1 stopped, 0 zombie
%Cpu(s): 18.6 us, 0.5 sy, 0.0 ni, 80.8 id, 0.0 wa, 0.0 hi, 0.1 si, 0.0 st
KiB Mem: 8034944 total, 6139968 used, 1894976 free, 182416 buffers
KiB Swap: 43491320 total, 158892 used, 43332428 free, 2370952 cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1845 root 20 0 834m 684m 10m S 72.1 8.7 226:00.29 Xorg
------------------8<-------------------------------------------------------------------
Check the 72%CPU usage above. It may have something to do with
suspend/unsuspend back and forth.
After reboot system behaves fine, but slowly degrades with Xorg cosuming
more and and more CPU
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You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in Ubuntu.
https://bugs.launchpad.net/bugs/1141064
Title:
xorg starts taking up 100% cpu
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1141064/+subscriptions
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