Interesting... My system seems to be worse than yours, as it crashes outright rather than producing inconsistent behavior. I also use radeon, but don't know if that issue is hw-related.
Try booting an old 3.* kernel, if you still have one. That restored my system's reliability. Check dmesg differences between kernel 4 and 3. I'm no kernel expert. I'm seeking help myself, but the "Chevrolet users' support group" doesn't seem to be much responsive these days... 'best Ale On Sat 09/Sep/2017 20:23:38 +0200 Ramiro Simões Lopes wrote: > Hi everyone! > > I'm having this weird bug on Stretch with gdm3 and Gnome. Fluxbox and i3 work > perfectly. It's difficult to describe it so I uploaded a couple videos to > show you: > > https://photos.app.goo.gl/lgTsHKLZhBa3SaF83 > https://photos.app.goo.gl/m2Dj4XYP79q0fSTJ2 > > I googled it but I haven't found anything like it. > > It started not immediately after upgrading to stretch, but in some upgrade > after that. I tried reverting the last updates but that didn't solve the > problem. > Maybe some configuration changed? Maybe a hardware issue? But that only > manifests itself with gnome (weird)? > > And things have been running so smoothly for years that I've gotten a little > rusty in fixing things... I don't know where to begin. > > I want to file a but report but I don't know if this bug belongs to gnome, to > xorg, to the radeon driver... > I'm using current Stretch versions of all packages. > > Hardware: > 1:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. > [AMD/ATI] > Turks XT [Radeon HD 6670/7670] [1002:6758] > > Driver: > xserver-xorg-video-radeon 1:7.8.0-1+b1 > firmware-amd-graphics 20161130-3 > > Kernel: > linux-image-4.9.0-3-amd64 4.9.30-2+deb9u3 > > > I appreciate any help/suggestions you might have. > > Thank you, > Ramiro