(In reply to Takashi Iwai from comment #1) > The error -28 = -ENOSPC. > > Could you narrow down which kernel versions work? There are some jump > between the version you mentioned (5.10.x) and 5.14.14. Sure. I have just tested a TW live image (20210820, ships with 5.13.12-1-default) that I had lying around in the drawer and I got the same error. Kernels installed back then: 5.11.4-1.3 5.11.6-1.4 5.11.15-1.2 5.12.4-2.1 5.12.12-1.1 I suspect it stopped working beginning with 5.12. How can I confirm that? I can't find (s)rpms nor a live image with a previous version of the kernel.