when the driver goes into an error state (waiting for fifo to unmess itself or other things), where the user just kills the hang process, nouveau decides to suspend the gpu allthough some kworker are inside some while loops and waiting for conditions to be true.
Because the card went offline reading stuff through mmio hangs and leaves the kernel in a really strange state, where usb/network/... can just go corrupt.
That's why the nouveau driver should add more points where the card is marked as in use, so that runpm won't suspend the card allthough it really should not.
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/238.