Ubuntu
linux-oem-5.10 package

  1. Focal (20.04)
  2. Bug #1903969
  3. Comment #12

Comment 12 for bug 1903969

Revision history for this message
Frédéric Grosshans (fgrosshans) wrote (last edit ):

[it now (2022-09-23) works, same kernel, so thanks to whomever fixed the bug and feel free to ignor the message below]

I seem to have the same problem in Jammy with the kernel 5.15.0-47-generic and with the latest firmware updates. The only difference is dmesg speak of pipe B instead of pipe A:

[ 509.965244] i915 0000:00:02.0: [drm] *ERROR* Link Training Unsuccessful
[ 509.990694] i915 0000:00:02.0: [drm] *ERROR* CPU pipe B FIFO underrun
[ 510.270856] i915 0000:00:02.0: [drm] *ERROR* Link Training Unsuccessful
[ ....]

Is that actually the same bug, or should I open a new one ?