Sorry about the late reply. Thank you for that information.
Kind regards, Gary. On Fri, Sep 17, 2021 at 5:40 PM AJay <1943...@bugs.launchpad.net> wrote: > See also: > https://askubuntu.com/questions/1361496/irq-185-audiods-using-more-than-60-of-the-cpu > Unloading sound modules using "sudo alsa unload" frees cpu resources. > Seems to be related to intel soundwire kernel module. > [ 2430.491653] sdw_cdns_irq: 137830 callbacks suppressed > [ 2430.491658] intel-sdw intel-sdw.0: Bus clash for control word > [ 2430.491683] intel-sdw intel-sdw.1: Bus clash for control word > [ 2430.491736] intel-sdw intel-sdw.0: Bus clash for control word > > I've verified the problem with the 5.13 kernel from 21.10 and that kernel > fixes the issue. > root@ubuntu:~# uname -a > Linux ubuntu 5.13.0-16-generic #16-Ubuntu SMP Fri Sep 3 14:53:27 UTC 2021 > x86_64 x86_64 x86_64 GNU/Linux > root@ubuntu:~# head /etc/lsb-release > DISTRIB_ID=Ubuntu > DISTRIB_RELEASE=21.10 > DISTRIB_CODENAME=impish > DISTRIB_DESCRIPTION="Ubuntu Impish Indri (development branch)" > > So the problem will probably be solved with the new HWE for 20.04 based > on the 21.10 kernel. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1943392 > > Title: > irq/174-AudioDS causing high cpu load since 20.04.02 > > Status in Ubuntu: > Confirmed > > Bug description: > System runs perfect with Ubuntu 20.04.1 with no updates. > > If i run 20.04.2 and 20.04.3 live or install i have high cpu load > (80%) with irq/174- AudioDS process. > > Battery life goes from 10+ hours to 4 hours. > > Laptop is Acer Swift 3 SF314 11th gen i5 with 8 gb ram. > > Have found several people with the same problem but no answers. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+bug/1943392/+subscriptions > > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1943392 Title: irq/174-AudioDS causing high cpu load since 20.04.02 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1943392/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
