@Kai-Heng Feng: Sorry, it took me a while to figure out how to do this. I have downgraded the linux-firmware package to 1.173 which is the only version I could find before 1.173.5. The problem started with the update to linux-firmware_1.173.5 and the regular update to 1.173.6 (which was the one running before the downgrade) did not resolve the issue.
@lotuspshychje: I have not yet downgraded the kernel to a previous version. (Current version: 4.15.0-50-generic #54-Ubuntu SMP Mon May 6 18:46:08 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux, current package linux- generic 4.15.0.50.52). With the current kernel and the downgraded linux-firmware package the symptoms seem to have disappeared. This suggests that the issue is related to the linux-firmware package (starting at 1.173.5)rather than the kernel itself. (I expect the bug should be reclassified as applying to this package accordingly.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1830350 Title: System freezes repeatedly for several seconds; wifi driver related errors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1830350/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
