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  1. Bug #1723619
  2. Comment #8

Comment 8 for bug 1723619

Revision history for this message
Chris Glass (tribaal) wrote :

I've done further testing as you suggested. Here's a breakdown of my findings:

I tested the following kernel versions on 4k + displayport (installed from launchpad librarian, with their matching -extra package and an "update-grub"):

- 4.12.0-12: Boots. System seems to crash after a few seconds on the 4k desktop (cannot switch VTs). Maybe a separate bug however, at least it makes it to login+desktop.

- 4.12.0-13: Boots. Same symptoms as previous kernel (crashes after a few seconds on the desktop).

- 4.13.0-10: Does not boot. Fails with a slightly different output than initially reported (see below)

- 4.13.0-11: Does not boot. Same symptoms.

- 4.13.0-12: Does not boot. Same symptoms. Screenshot https://photos.app.goo.gl/ztJvK7Im2LVCK0ss1

- 4.13.0-15: Does not boot. Same symptoms.

- 4.13.0-16: Does not boot. Same symptoms.

None of the tested kernels exhibit any problematic behavior when the HDMI + 1080p screen is plugged in.