Hi *, I'm still trying to switch somehow automatically between the nvidia and the nouveau driver, but I ran into a quite annoying problem on both openSuSE Leap 42.2 (even with the latest kernel from the kernel stable repository) and also with the latest Tumbleweed snapshot. I don't have problems, running the nouveau driver if I don't have an xorg.conf.d structure at all, but even with a very tiny structure the X server won't start anymore, and I can't figure out, what I might be missing here. There are three scenarios: 1. No xorg.conf.d structure at all -> nouveau gets loaded, X is starting. Same behaviour with Leap 42.2 ad with Tumbleweed. 2. Tiny xorg.conf.d structure as shown below with a driver entry for nouveau, i.e. Driver "nouveau" -> X server is not starting with an entry "Unknown chipset: NV117" at the end of Xorg.0.log. Same behaviour with Leap 42.2 ad with Tumbleweed. 3. Tiny xorg.conf.d structure as shown below without a driver entry for nouveau -> X server is starting and one can logon via sddm, but a few program starts later, the nouveau driver is crashing with errors like "nouveau 0000:01:00.0: fifo: PBDMA0: 00040000 [PBENTRY] ch 15 [007e351000 X[1413]] subc 0 mthd 0000 data 00000000". This happens with Leap 42.2 only, not with Tumbleweed - with the exact same modules from kernel 4.8.9-1. This is my xorg.conf.d structure: # 00-keyboard.conf: # ................. Section "InputClass" Identifier "system-keyboard" MatchIsKeyboard "on" Option "XkbLayout" "de" Option "XkbModel" "pc105" Option "XkbOptions" "terminate:ctrl_alt_bksp" EndSection # ----------------------------- # 50-device.conf: # ............... Section "Device" Identifier "NVidia_GTX750" Driver "nouveau" EndSection # ----------------------------- # 50-module.conf: # ............... Section "Module" # Disable "glx" EndSection # ----------------------------- # 50-monitor.conf: # ................ Section "Monitor" Identifier "DELL_U2715H" EndSection # ----------------------------- # 50-screen.conf: # ............... Section "Screen" Identifier "Screen_0" Device "NVidia_GTX750" Monitor "DELL_U2715H" EndSection # ----------------------------- # 99-serverlayout.conf: # ..................... Section "ServerLayout" Identifier "SingleHead_Layout" Screen "Screen_0" EndSection # ----------------------------- Any idea, what might be going on here? Thx! Bye. Michael. -- Michael Hirmke -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org