-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Mon, 2019-06-03 at 12:59 -0700, Russ Allbery wrote: > Ah, good call. I was also seeing other problems with the Intel driver in > combination with light-locker where the monitor resolution would be set to > some incorrect value after restore from lock. This would come with kernel > errors like: > > [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo > underrun on pipe B > [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO > underrun > > and then lots and lots of: > > [drm:intel_dp_start_link_train [i915]] *ERROR* Timed out waiting for DP idle > patterns
My gut feeling is that light-locker just uses codepaths not really used otherwise, like vt-switch at the same time as suspend/resume or screen off/on. Unfortunately debugging i915 is completely out of my league (and I already tried multiple time on other issues). Regards, - -- Yves-Alexis -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEE8vi34Qgfo83x35gF3rYcyPpXRFsFAlz1fv0ACgkQ3rYcyPpX RFuTTQf+ITXxUm6DnBRNuGwsKbKCFoeXUAiP+v5GdIJDDifEWG91inoF1tf6GswS l1RRJHYczv9WtjL+6e1522vzAp0h6jw5WuAcQfXcAZZR4n/GU25VVa6gsIqbGIv9 XvsoN+Y/MGdJueg0xYfBTuiInoySchJ4cv2oh56MkcndjgDiPtiH8bAXCcxwBflj OXkCEUj8LLoOACdTYBWA02vA66daEMRk7Y6gkO+BwbvS/ZeVL1T2xQV0W47obtF5 AaBhx/AwM59Bzk5RUD8EBi5cOWuXB7KIYcuXLzaFjNzk6yXXTAx26740dR8q3CoD JHld4HjQRllFUxsDiZvz5+1q5+nShw== =ho8d -----END PGP SIGNATURE-----