On Fri, Apr 15, 2011 at 11:32 PM, Christoph Glaubitz <chris+arch@xxxxxxxxx> wrote: > Hi, > > I installed gnome3 from testing today, and it works fine so far. > But in dual screen mode, the gnome-shell uses between 50 and 100% cpu > continuous. Just after login, without any other programs running. > > If I switch off one of my displays - it does not matter which one, the > laptop display or the vga plugged - gnome-shell runs on 1% cpu usage > again. It is also possible to switch between the displays without > problems, as long as one of them is switched off. > > Since this is a 6(?) year old Intel 915GM chipset, it's maybe just > related to too little grafical power. > > Is anyone able to confirm this on a more powerful machine? > > -- > chris > The issue is probably that the dual screen desktop size exceeds your card's maximum texture size, triggering software rendering fallbacks in OpenGL all over the place.
