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[Bug 1586933] Re: gpu-manager's drm output detection affects boot time

 

** Also affects: ubuntu-drivers-common (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: ubuntu-drivers-common (Ubuntu Xenial)
       Status: New => In Progress

** Changed in: ubuntu-drivers-common (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: ubuntu-drivers-common (Ubuntu Xenial)
     Assignee: (unassigned) => Alberto Milone (albertomilone)

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https://bugs.launchpad.net/bugs/1586933

Title:
  gpu-manager's drm output detection affects boot time

Status in ubuntu-drivers-common package in Ubuntu:
  In Progress
Status in ubuntu-drivers-common source package in Xenial:
  In Progress

Bug description:
  Rather than calling drm directly, gpu-manager should simply check the
  outputs connector status by using the sysfs filesystem (e.g.
  /sys/class/drm/card0-HDMI-A-1/status, etc.), thus relying on data that
  is already available.

  This should make gpu-manager a bit less resource intensive, especially
  on boot.

  The attached perf shows the problem in gpu-manager.

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