same issue
regrets, but I am experiencing this problem as well.
setup:
Dell XPS 13 9350 with the Dell D3100 dock running Ubuntu 16.04 (4.4.0-38-generic)
DisplayLink Ubuntu Software Version: 1.2.58
to reproduce:
- plug in d3100 dock with external monitor attached via displaylink
- note monitor is enabled as secondary
- close top on laptop
- expect: external monitor becomes primary.
observed:
display not visible.
dmesg output completely spammed with messages like:
[10380.071195] [drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x1f3, supported mask 0x7400003f
[10380.071239] [drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x40001f3, supported mask 0x7400003f
imo, after reading the referenced defect reports, it may be a little bit of a reach to say this is a bug in the upstream. the scenarios referenced are all specific to the nouveau driver.
workaround is to leave laptop display open, I guess.
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