Public bug reported:
A system being certified hangs hard when a VGA monitor is plugged in.
The machine has a built-in DP MST bridge, but the driver has no support
for MST. Upstream recently added a patch to add support for it, and it
improves the situation that there's no hang anymore. Monitor still stays
blank but that'll need another SRU once a patch for it is available.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Vivid)
Importance: High
Assignee: Timo Aaltonen (tjaalton)
Status: In Progress
** Affects: linux (Ubuntu Wily)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Vivid)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Wily)
Importance: Undecided
Status: New
** Bug watch added: freedesktop.org Bugzilla #91791
https://bugs.freedesktop.org/show_bug.cgi?id=91791
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https://bugs.launchpad.net/bugs/1515169
Title:
[i915_bpo][SKL-U] System hangs when VGA monitor plugged in
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