I installed QGIS 3.4 with the repository https://qgis.org/ubuntu-ltr bionic main on an Ubuntu 18.04 machine. I had some troubles due to the presence of several repositories listed in my file sources.list. But now the software is installed and is properly running.

However its settings are not stable : neither the toolbar's display nor the location of the panels nor the import of my personalized color palette nor even the recently opened project files nor the connection to the databases are kept by the software.

I checked if the profile folder existed : /home/user/.local/share/QGIS/QGIS3/profiles/default. It's here, no problem. It has even the correct writing accesses for the owner and its group (and is "read-only" for the other users).

Do you have some clues?

  • Do you have any self-compiled GIS-related stuff on your machine? Looks similar to the problems in gis.stackexchange.com/questions/313294/… or updated python modules as in gis.stackexchange.com/questions/31036/couldnt-load-sip-module
    – AndreJ
    Aug 26, 2019 at 19:07
  • Hello AndreJ. No, I've no self-compiled stuff on this machine. There was a time when I played with it, compiling GDAL and QGIS in order to manage ECW format! ;-) But not on this PC.
    – V Damoy
    Aug 27, 2019 at 12:08
  • Did you update anything from Python with pip? Do you get error messages in the QGIS log section?
    – AndreJ
    Aug 27, 2019 at 17:42
  • No, it was just a basic install. And I've got no error in logs. But I finally managed to domesticate my QGIS! I don't know why, the QGIS3.ini file (and only it) was read-only. I changed basic rights on it, and now QGIS remember its configuration! Thank you anyway for the help.
    – V Damoy
    Sep 4, 2019 at 6:25

1 Answer 1


Finally it was an access rights problem, but not at folder level. The ini file (/home/user/.local/share/QGIS/QGIS3/profiles/default/QGIS/QGIS3.ini) was read-only (I really don't know why). I simply changed its access rights with chmod, and QGIS recovered its memory!

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