From: Arno <star@gmx.li>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Date: Mon, 11 May 2020 10:18:47 +0200 [thread overview]
Message-ID: <aab05507-450d-5643-20af-500dec6bc59b@gmx.li> (raw)
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My laptop (core m5-6y54) starts flickering after returning from Suspend
(to RAM) or other commands touching the video driver (xrandr, powertop
--calibrate, ...)
From kernel (tested with up to 5.7) I get the message:
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
I added a bug with more details here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872760
but guys from Ubuntu seems not able to help (as it is an upstream bug) !?
This happend not in older kernels, but these have the problem not to go
in power save states. So I think the fix of that
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863489
causes this regression.
Hope someone can help. For a laptop it is better to have both - standby
and power saving. Thank you.
Arno
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next reply other threads:[~2020-05-11 8:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-11 8:18 Arno [this message]
2020-05-18 7:06 ` [Intel-gfx] intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Arno
2020-05-18 7:21 ` Saarinen, Jani
2020-05-18 7:43 ` Vudum, Lakshminarayana
2020-06-28 10:38 ` Arno
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