On Thu, 12 Nov 2015 00:49:46 +0800 Drew Parsons <dpars...@emerall.com> wrote: > On Thu, 29 Oct 2015 01:52:50 +0100 gpe92 <gp...@free.fr> wrote: > > > > Since the update to gnome-shell 3.18 the login takes very long time > > (more than 1 minute) and after there is a processus 'gnome-shell > > --mode=gdm' which consumes 20% of CPU all the time. > > ... > ... high CPU usage by gnome-shell could be caused by extensions. >
No, probably not extensions in this case. The clue is "--mode=gdm". The gnome-shell that you interact with is run under your own user name. But 'gnome-shell --mode=gdm', the instance with the high CPU usage, is run under user Debian-+. The high CPU usage is reported also on Redhat. Apparently it only happens with the nvidia proprietary video driver. A workaround is to switch to the virtual terminal on which 'gnome-shell --mode=gdm' runs, e.g. Ctrl-Alt-F7, then back again. That seems to reset the process so it stops spinning the CPU. cf. https://bugzilla.redhat.com/show_bug.cgi?id=1298935 Fixed in gdm-3.18.2-2.fc23 with a patch managed at https://bodhi.fedoraproject.org/updates/FEDORA-2016-6f8f961dc4
