Since upgrading to Ubuntu 23.04 Wine audio suffers buffer underruns

[Robert Dinse]

Since upgrading to 23.04 wine sucks, getting bad buffer underruns playing winamp. Had this same problem when upgrading to 22.10, seemed related to pipewire as last time removing pipewire fixed it, but this time it did not help so you've managed to fuxor over something else. I'm using an i7-9700k CPU overclocked at 4.9 Ghz with 32GB of RAM and only have Mate desktop, a handful of mate terminals and sshd sessions, and Firefux running so should not be a shortage of CPU/memory. Top looks like this:

top - 00:22:50 up 2 days, 6:51, 8 users, load average: 4.50, 4.40, 4.16
Tasks: 372 total, 1 running, 369 sleeping, 0 stopped, 2 zombie
%Cpu(s): 20.2 us, 7.3 sy, 0.0 ni, 49.8 id, 7.1 wa, 0.0 hi, 0.3 si, 0.0 st
MiB Mem : 30996.5 total, 539.0 free, 21075.0 used, 26613.4 buff/cache
MiB Swap: 65536.0 total, 63848.8 free, 1687.2 used. 9921.5 avail Mem

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
 334940 libvirt+ 20 0 20.4g 16.0g 15.9g S 202.6 52.9 59,06 qemu-sy+
 134794 nanook 20 0 3182348 334116 99188 S 25.6 1.1 9,32 Isolate+
  15429 nanook 20 0 12.5g 504160 172792 S 7.2 1.6 197:03.42 firefox
    741 root 20 0 0 0 0 S 5.1 0.0 77:25.50 gvt:rcs0
   2506 root 20 0 1913244 104908 50432 S 1.5 0.3 34:48.74 Xorg
  16505 nanook 20 0 3066252 385480 107248 S 1.5 1.2 40:45.80 Isolate+
 662934 root 20 0 0 0 0 I 1.0 0.0 0:17.03 kworker+
 669255 root 20 0 0 0 0 I 1.0 0.0 0:11.31 kworke
 671285 root 20 0 0 0 0 I 1.0 0.0 0:08.03 kworker+
 676530 nanook 20 0 2213412 44344 28828 S 1.0 0.1 0:01.21 winedev+
 676903 nanook 20 0 843872 64644 47008 S 1.0 0.2 0:00.30 mate-te+
     15 root 20 0 0 0 0 I 0.5 0.0 2:08.21 rcu_pre+
    745 root 20 0 0 0 0 S 0.5 0.0 7:55.70 gvt_ser+
   1987 root 20 0 1161476 41072 9760 S 0.5 0.1 2:11.71 fail2ba+

     As you can see load of 4.5 on an eight core machine should not be a CPU issue. Running
kernel 6.1.24 which is same kernel I had on 22.10 but it was working smoothly prior to the update.

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: wine64 8.0~repack-4
Uname: Linux 6.1.24 x86_64
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: MATE
Date: Sun Apr 23 00:16:58 2023
SourcePackage: wine
UpgradeStatus: Upgraded to lunar on 2023-04-20 (2 days ago)

[Robert Dinse (nanook)]

Additional note, after removing pipewire and rebooting, buffer underruns stopped. So still something broken with pipewire.