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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [sna suse] many black lines with latest ddx"
href="https://bugs.freedesktop.org/show_bug.cgi?id=80948#c43">Comment # 43</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [sna suse] many black lines with latest ddx"
href="https://bugs.freedesktop.org/show_bug.cgi?id=80948">bug 80948</a>
from <span class="vcard"><a class="email" href="mailto:jirislaby@gmail.com" title="Jiri Slaby <jirislaby@gmail.com>"> <span class="fn">Jiri Slaby</span></a>
</span></b>
<pre>(In reply to Jiri Slaby from <a href="show_bug.cgi?id=80948#c42">comment #42</a>)
<span class="quote">> [ 25.013522] Call Trace:
> [ 25.013558] [<ffffffffa05aeb69>] intel_crtc_page_flip+0x309/0x910 [i915]</span >
Oh, and this is the first hunk's path. So calling it from both locations can
trigger this BUG_ON?
BTW
every boot shows:
2015-06-22T11:02:32.086138+02:00 anemoi kernel: [ 5.222347]
[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo
underrun on pch transcoder A
2015-06-22T11:02:32.086138+02:00 anemoi kernel: [ 5.222385]
[drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
2015-06-25T17:48:29.159519+02:00 anemoi kernel: [ 5.156922]
[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo
underrun on pch transcoder A
2015-06-25T17:48:29.159519+02:00 anemoi kernel: [ 5.156946]
[drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
2015-07-02T21:03:33.947421+02:00 anemoi kernel: [183015.139612]
[drm:intel_dp_start_link_train [i915]] *ERROR* failed to enable link training
2015-07-02T21:03:33.947449+02:00 anemoi kernel: [183015.142321]
[drm:intel_dp_complete_link_train [i915]] *ERROR* failed to start channel
equalization
2015-07-06T10:41:47.285360+02:00 anemoi kernel: [ 5.006666]
[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo
underrun on pch transcoder A
2015-07-06T10:41:47.285361+02:00 anemoi kernel: [ 5.006713]
[drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
2015-07-06T12:56:41.992582+02:00 anemoi kernel: [ 5.219848]
[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo
underrun on pch transcoder A
2015-07-06T12:56:41.992582+02:00 anemoi kernel: [ 5.219867]
[drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
2015-07-06T12:59:18.957624+02:00 anemoi kernel: [ 5.102770]
[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo
underrun on pch transcoder A
2015-07-06T12:59:18.957625+02:00 anemoi kernel: [ 5.102812]
[drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun</pre>
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