Comment 7 for bug 2003226

Hello Daniel, thanks for providing the results on your testing. This looks like a kernel issue, I think what we need is testing with different kernels to check when the regression happened.

The kernel team maintains kernel builds of the mainline kernel (i.e. without Ubuntu changes). Instructions on how to test those kernels are here:

  https://wiki.ubuntu.com/Kernel/MainlineBuilds

Would you be able to verify that (1) the issue also happens with the mainline kernels (2) which kernel version regressed (bisecting between versions)? Given that this issue is difficult to reproduce (requires specific hardware) we need to rely in your testing to make progress.

I added a kernel task to the bug.