Hi, quick update. I downgraded to Linux kernel 5.13, still issues. I tried installing Xubuntu 22.10 + Ubuntu Studio, no luck. Downgraded to US 20.04.5, no luck as well. Then, on US 20.04.5 I downgraded to kernel 5.11 and it all works fine. It does seem like the most recent kernel versions (>5.13) messed up audio (over USB at least).
Cheers, Mario On Sun, 4 Dec 2022 at 12:11, mario buoninfante <mario.buoninfa...@gmail.com> wrote: > Hi, > > Here's a bit more info and some updates. > I'm running Xubuntu 22.04.1 with Ubuntu Studio (everything installed). > I'm using a Focusrite Clarett 8pre USB as audio device running at 96kHz > sample rate, 256 sample buffer size and 3 JACK period. > I'm fully up-to-date and the kernel is Linux 5.15.0-56-lowlatency x86_64 > (I think the kernel got updated in the last round of updates). > > In the last 2 days I unsuccessfully tried to do the following (in > non-particular order): > > - > > uninstall pipewire - too many dependencies, so I gave up on that > - > > the combo > - > > systemctl --user stop pipewire.socket && systemctl --user stop > pipewire.service > - > > systemctl --user mask pipewire.service > - > > re-install pulse audio > - in /etc/pulse/default.pa I added "tsched=0" to the line containing > "load-module module-udev-detect" > - > > edit the files in /etc/pipewire/media-session.d adding: > - > > session.suspend-timeout-seconds = 0 > - > > install pipewire-pulse > - > > replace pipewire-session-manager with wireplumber > - > > re-install pipewire-session-manager and remove wireplumber (this is > actually the last thing I tried, so now I don't have wireplumber anymore) > > > Nothing helped. > Then, after using: > > - > > systemctl --user status pipewire pipewire-session-manager > > I realised I was getting 2 errors: > > - > > mod.rt: could not set nice-level to -11: Permission denied > - > > spa.v4l2: '/dev/video0' VIDIOC_QUERYCTRL: Input/output error > > I fixed the former adding > > @audio - nice -20 > > to /etc/security/limits.d/audio.conf > > I didn't manage to address the latter though. > > > The situation seems to have improved, not so much with streamed > audio/video, but with audio only (eg audacious) - it might be too early to > assess this though, since it was a late night move. > > I went from "totally unusable - glitches, pops and crackles 80% of the > played audio", to "getting pops and crackles sporadically". > Still makes my system unusable, since I mainly record/mix/produce music on > my computer, but all improvements are welcome! > > With audio/video from the internet though (mainly YouTube via Firefox), > I'm still getting terrible performance out of this. > > > Cheers, > Mario > > > > > > > On 02/12/2022 21:09, mario buoninfante wrote: > > Hi, > > Recently I started having issues with the audio performance of my system > (Ubuntu 22.04.1 LTS). > It seemed to have started after my last update. > Simply running "top" I noticed I have "pipewire" running and I was > wondering if that could be the problem. > I don't know if that has always been installed as I never checked before > today, but I found online that several people are having similar issues > both on Ubuntu and Fedora. > > Any feedback/recommendation is welcome :) > > Cheers, > Mario > > > > -- > --- > musician, QA engineer, mental health first aider MHFA England > https://isoneph.bandcamp.com/https://vdof.bandcamp.com/http://mbuoninfante.tumblr.comhttps://vimeo.com/creativecodingsalernohttps://github.com/mariobuoninfante > >
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