I have a Lenovo Z570 Ideapad with GMA3000 graphics (Sandy Bridge). I had gone through all the tricks - /etc/X11/xorg.conf.d, etc/default/grub, grub command line, firmware-nonfree, Ubuntu graphics PPA. Had it mostly OK, usable. Since I was using testing, did apt update apt upgrade. Lost all 7 virtual terminals. Since I have /home on a separate partition, I nuked and paved /dev/sda2 and left /home alone. Fixed. Almost perfect. No moving / blinking text in the terminal or in Thunderbird, package scrolling works fine in Synaptic, Firefox doesn't crash when you clear out the address bar, old Motif "card games" (Aisleriot, xpat2, Penguin Solitaire, etc working with no glitches. Only 1 small white stripe when flipping to another virtual desktop (running Compiz with the cube) which disappeared when I returned to the vd. Back when I worked in the TV repair shop that was sometimes referred to as an FM repair. The M stands for Magic. Anyhow, so far, 2 days without a reboot and just about no glitches. Hope it keeps up. Jim Daldry
On 2/14/20, Miguel A. Vallejo <ea4...@gmail.com> wrote: > Jörg-Volker Peetz wrote: > >> Do you also use the skylake GPU firmware which should be located in >> /lib/firmware/i915/ >> (from package firmware-linux-nonfree, I think; file names beginning with >> "skl_")? > > Of course. I even installed the missing files in current testing / unstable > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931930 > > But no difference. Once you start to use 3D accelerated graphics, the > bomb starts ticking to explode when you least expect it. > >