So this should be a bug in the Linux kernel, Direct Rendering Manager's,
Dinamic Power Management feature.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu)
Status: New => Confirmed
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alberto Salvia Novella (es20490446e)
** Changed in: linux (Ubuntu)
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/881526
Title:
AMD graphics hardware hangs with an homogeneous coloured screen or
blank screen, and with chirp coming from the graphics card
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