[Bug 111310] Failed to toggle display to mirror mode

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111310

Lakshmi <lakshminarayana.vudum at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Whiteboard|Triaged                     |Triaged, ReadyForDev
           Priority|high                        |medium
      i915 features|                            |display/watermark
             Status|NEEDINFO                    |NEW

--- Comment #14 from Lakshmi <lakshminarayana.vudum at intel.com> ---
(In reply to AceLan Kao from comment #13)
> Created attachment 145156 [details]
> xrandr test dmesg.log

229.236316] modeset 1 start
[  244.097370] modeset 1 result: fails
[  244.187105] modeset 2 start
[  249.417777] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[  259.287420] modeset 2 result: fails
[  259.374885] modeset 3 start
[  265.603457] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[  280.548303] modeset 3 result: fails
[  280.635707] modeset 4 start
[  294.783926] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[  315.220947] modeset 4 result: fails
[  315.308298] modeset 5 start
[  330.976321] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[  356.236186] modeset 5 result: fails
[  356.323591] modeset 6 start
[  373.220764] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[  400.658349] modeset 6 result: fails
[  400.745707] modeset 7 start
[  426.821406] modeset 7 result: fails
[  426.910324] modeset 8 start
[  433.805585] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[  465.152740] modeset 8 result: fails
[  465.241756] modeset 9 start
[  469.096026] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[  497.074056] modeset 9 result: fails
[  497.161822] modeset 10 start
[  506.738423] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[  553.592075] modeset 10 result: fails
[  553.679171] modeset 11 start
[  561.929562] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun

Setting the priority considering the reproduction rate after adding
drm.debug=0xe parameter.

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