** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Daniel Axtens (daxtens)
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1698706
Title:
Quirk for non-compliant PCI bridge on HiSilicon D05 board
Status in linux package in Ubuntu:
In Progress
Bug description:
The HiSilicon D05 board has some PCI bridges (PCI ID 19e5:1610) that
are not spec-compliant: they do not set the VGA Enable bit when a VGA
card is behind the bridge. This breaks Xorg auto-detection. [0]
Despite this, the hibmc VGA card (PCI ID 19e5:1711) is known to work
when behind these bridges.
Provide a quirk so that this combination of bridge and card works.
I will upstream this and then begin the process of back-porting.
[0] https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991 - this
bug tracked debugging of a segfault and then this issue. Comments 25
(https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991/comments/25)
and 31 onwards detail this issue.
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