http://bugzilla.opensuse.org/show_bug.cgi?id=1184078 Bug ID: 1184078 Summary: nouveau error at boot Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: openSUSE Tumbleweed Status: NEW Severity: Major Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: miguel@rozsas.eng.br QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I was in 20210220 fully updated and everything is working. I decided to upgrade to 20210320. Everything went fine during the (very long) update process. After the first boot the system stays in text mode login screen and at the top, an error message: [ 6.534238] nouveau 0000:01:00.0: bus: MMIO write of 800001f4 FAULT at 18eb14 [ IBUS ] On grub menu, selecting the previous kernel 5.10.16-1-default, results in the same error message. Please check this image: https://imgur.com/a/mp75rtA Using the proprietary nvidia driver is even worse: There is no text mode to see anything. Using the snapshot rollback I manage to go back to 20200220 where everything works using the proprietary nvidia driver: My system (after the snapshot rollback to go back to 20200220): Operating System: openSUSE Tumbleweed 20210220 KDE Plasma Version: 5.21.0 KDE Frameworks Version: 5.80.0 Qt Version: 5.15.2 Kernel Version: 5.10.16-1-default OS Type: 64-bit Graphics Platform: X11 Processors: 8 �� Intel�� Core��� i7-3770 CPU @ 3.40GHz Memory: 14.6 GiB of RAM Graphics Processor: GeForce GTX 970/PCIe/SSE2 -- You are receiving this mail because: You are the assignee for the bug.