> By the way, > <https://support.mozilla.org/en-US/questions/1443491> > "Firefox hangs after switching between virtual terminals (Linux)" > > Ok, so I followed the recommendations from this page and disabled > > hardware acceleration. It seems to fix the problem.
Indeed it did! Disabling hardware acceleration fixed this issue. Thanks for the pointer! > > systemd-logind revokes permissions to /dev/dri/* on change of active user. This could be why the issue doesn't crop up when running through vnc / xpra. Probably firefox doesn't use hardware acceleration when using those x-servers. > > I have no idea if your security model allows to add users to the "video" > groups, but as a side effect, I would expect higher probability of > crashes due to bugs in graphics drivers. > My user account was already a member of the "video" group. Shall have to see if the disabled hardware acceleration has any noticeable effect on performance. Thanks, Raj Kiran
