[Bug 1492175] Re: drm_device_keep_trying.patch breaks with virtio-gpu

[Robert Ancell]

This patch was proposed upstream in
https://bugs.freedesktop.org/show_bug.cgi?id=77889 (via bug 982889).
This is a note to update the proposed patch when we update our version.

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https://bugs.launchpad.net/bugs/1492175

Title:
  drm_device_keep_trying.patch breaks with virtio-gpu

Status in xserver-xorg package in Ubuntu:
  Incomplete

Bug description:
  I pointed this out to Maarten half a year ago, and he seemed concerned
  but didn't actually do anything.  Your "drm_device_keep_trying.patch"
  X server patch crashes the X server with Dave Airlie's virtio GPU
  device and driver, and probably with any driver on a non-USB bus
  attached to PCI.  The updated patch attached at least fixes the crash,
  and in the case of virtio it is probably actually correct when the
  device is on a PCI bus.  Perhaps just converting the USB bit to apply
  to all unknown buses would be the right thing?  By the way, note the
  changed format string too.

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