GNOME system-monitor cpu graph color does not update or persist

[James Pack]

1. Description: Ubuntu 18.04.1 LTS
   Release: 18.04

2. gnome-system-monitor:
  Installed: (none)
  Candidate: 3.28.2-0ubuntu1
  Version table:
     3.28.2-0ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
     3.28.1-1 500
        500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

3. I expect the colors to update in the graph and persist across application exit.

4. When I choose a different color for my cpu graphs the color does not update in the actual graph. Also when I close the app and open it again the colors seem to reset to default.

Screenshot attached.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[MD (mdu7078)]

Still affects current version 18.04.1 LTS. Colors do not persist on exit and do not affect graph.

[Sebastien Bacher (seb128)]

I can't confirm those problems. Do you get any warning/error on the command line or in journalctl? Here the colors are restored and changed dynamically using the deb or the snap

[Narada King (nking)]

Try changing the CPU colours from right to left in one go where most of them are custom colours.

[Sebastien Bacher (seb128)]

the colors match the legend so you are basically saying that it's working for you?

[Narada King (nking)]

Yes, it currently is working for me now after a while. It is likely if I fool around with the colours again that they won't stick. Shall I try?

[MD (mdu7078)]

When assigning in reverse using only custom colors as you suggested (32 down to 1), it somewhat works, although not really (there are stray colors that are not changed at all).

When assigning even somewhat out of reverse order, colors revert back to what they were originally set to.

The colors still are not saved on exit.

Furthermore, launching from the terminal (gnome-system-monitor) reports no errors, and one warning:

Fontconfig warning: "/etc/fonts/conf.avail/53-monospace-lcd-filter.conf", line 10: Having multiple values in <test> isn't supported and may not work as expected

[Alex (alex2wr)]

I'm experiencing the same issue and would like to contribute, how can I do so? Regards,

[Vasilis Lemonidis (vaslemonidis)]

Ok, this is enervating. The only current way to change colors is to follow this algo:
- Open System Monitor
- Select the wanted single cpu color and change it to a new custom one
- Close System Monitor
- Repeat
I had to do that 10 times, but nvm it worked...

[Ryan Budney (delooper)]

Not only can I not change the colours (also in Ubuntu 18.04), it seems many other elements of the settings are broken. The stacked area chart button, and the smooth graph button result in unpredictable behavior.