[Bug 89806] [IVB] boot error: *ERROR* uncleared pch fifo underrun on pch transcoder A

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89806

vmatarese at uptoit.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |---
             Status|RESOLVED                    |REOPENED

--- Comment #15 from vmatarese at uptoit.org ---
Mageia 5 on a Sony Vaio SVE15 series
uname -r:  4.1.15-desktop-2.mga5

Card:Intel 810 and later: Intel Corporation|3rd Gen Core processor Graphics
Controller [DISPLAY_VGA] 

At boot I see:

[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo
underrun on pch transcoder A
[drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO
underrun

Graphical problems:
- Touchpad freezes on resume from sleep, requiring new login
- Screen flickers after a few minutes of inactivity, before screen energy
savings kicks in

(I didn't have the problems or errors on the same laptop running Mageia 4)

Thanks for any help!

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