Hi. On Mon, Apr 04, 2016 at 11:11:15AM +0000, Joerg Desch wrote: > I have an extremely hard problem after upgrading Debian Jessie from 8.3 > to 8.4 today. The system is a Dell Vostro with an AMD/ATI Turks PRO > [Radeon HD 7570]. The free radeon driver is used for X. Desktop is GNOME3. > The resolution is 25560x1440. I've used this resolution for about 3-4 > weeks now. > > After the upgrade (and a restart), the system freezes from one second to > the other. It seems to be independent from the used application. > > As a work-around, I'm running GNOME classic now. Without the EGL > features, the desktop is running now. Currently I avoid using Firefox, > because I don't know if the renderer uses EGL. > > Can someone help?
This is a known problem, see: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=819881 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=817874 The only workaround I'm aware of is to downgrade the kernel to 3.16.7-ckt20-1+deb8u4. Reco