Public bug reported:
On legacy NVDIA machine, after CCSM update 28 Feb 2018, system would
freeze with either soft-boot or hard-boot required.
If able to switch to console/terminal, and run "TOP", the table showed COMPIZ
maxing out at 100%.
As a workaround, I had to :
1. switch to lowgfx
Public bug reported:
Very difficult filing this report, as system almost unusable since
latest CompizConfigSysMgr update.
Monitoring with TOP, Compiz hogs resources, at 100% or even 106%,
sometimes relinquishing resources after 2 or 3 minutes lag.
If Kill command for Compiz PID, then sometimes
Switched to "low graphics" mode in Unity (as explained below), but
problem with Ubuntu Dashboard is worse in some respects.
Installed "Compiz Configuration Settings Manager" > Preferences >
Profile: select "unity-lowgfx". The screen seems to respond immediately
to the changed setting, The screen
Okay, I enabled the "Processor microcode firmware for AMD CPUs from
amd64-microcode (proprietary)" and performance has improved somewhat,
for both the Dashboard and streaming video playback (both embedded video
and fullscreen video).
Dashboard still showing some garbage output, when I put in
Public bug reported:
Typing in Dashboard search creates garbage on screen, running nouveau
driver. After considerable lag, the icons appear corresponding to the
search, the display tidies up, and Dashboard becomes usable.
Otherwise, Unity desktop running okay. Ubuntu 16.04 on AMD-64 machine,
HP
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