<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> Dear Lakshminarayana, dear Chris, dear Jani, thanks for opening this bug, but it seems nothing to happen with that. Can I do anything to trigger this and bring that back to focus. It is an really annoying bug and this flickering screen drives me crazy and with "intel_idle.max_cstate=4" runtime is dramatically reduced. From what I read maybe you Chris have biggest knowledge. Can you give me some feedback? Shall I give up hope? Best regards, Arno <div class="moz-cite-prefix">On 18.05.20 09:43, Vudum, Lakshminarayana wrote: </div> <blockquote type="cite" cite="mid:5b9c291892c245b3becd3df45ba5f3f9@intel.com"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> <div class="WordSection1"> Arno, I have created bug <a href="https://gitlab.freedesktop.org/drm/intel/-/issues/1900" moz-do-not-send="true"> https://gitlab.freedesktop.org/drm/intel/-/issues/1900</a> for this issue. <o:p></o:p> Now discussions can happen in the bug report directly. Thanks for reporting the issue.<o:p></o:p> <o:p> </o:p> Thanks,<o:p></o:p> Lakshmi.<o:p></o:p> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"> <a name="_____replyseparator" moz-do-not-send="true"></a>From: Saarinen, Jani <a class="moz-txt-link-rfc2396E" href="mailto:jani.saarinen@intel.com"><jani.saarinen@intel.com></a> Sent: Monday, May 18, 2020 10:21 AM To: Arno <a class="moz-txt-link-rfc2396E" href="mailto:star@gmx.li"><star@gmx.li></a>; <a class="moz-txt-link-abbreviated" href="mailto:intel-gfx@lists.freedesktop.org">intel-gfx@lists.freedesktop.org</a>; <a class="moz-txt-link-abbreviated" href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>; Vudum, Lakshminarayana <a class="moz-txt-link-rfc2396E" href="mailto:lakshminarayana.vudum@intel.com"><lakshminarayana.vudum@intel.com></a> Subject: RE: [Intel-gfx] intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun<o:p></o:p> </div> </div> <o:p> </o:p> Please make gitlab issue if not already done. Lakshmi, please guide. <o:p></o:p> <o:p> </o:p> <div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt"> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"> From: Intel-gfx <<a href="mailto:intel-gfx-bounces@lists.freedesktop.org" moz-do-not-send="true">intel-gfx-bounces@lists.freedesktop.org</a>> On Behalf Of Arno Sent: maanantai 18. toukokuuta 2020 10.07 To: <a href="mailto:intel-gfx@lists.freedesktop.org" moz-do-not-send="true">intel-gfx@lists.freedesktop.org</a>; <a href="mailto:chris@chris-wilson.co.uk" moz-do-not-send="true">chris@chris-wilson.co.uk</a> Subject: Re: [Intel-gfx] intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun<o:p></o:p> </div> </div> <o:p> </o:p> Is there another place to report this kind of issue? Didn't get any feedback. Did I make mistakes in my mail? I already tried the Ubuntu bug-tracker (see below) with no success.<o:p></o:p> Thank you,<o:p></o:p> Arno<o:p></o:p> <o:p> </o:p> <div> Am 11.05.20 um 10:18 schrieb Arno:<o:p></o:p> </div> <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"> <div> My laptop (core m5-6y54) starts flickering after returning from Suspend (to RAM) or other commands touching the video driver (xrandr, powertop --calibrate, ...)<o:p></o:p> From kernel (tested with up to 5.7) I get the message:<o:p></o:p> [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun<o:p></o:p> I added a bug with more details here:<o:p></o:p> <a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872760" moz-do-not-send="true">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872760</a><o:p></o:p> but guys from Ubuntu seems not able to help (as it is an upstream bug) !?<o:p></o:p> 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 <o:p></o:p> <a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863489" moz-do-not-send="true">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863489</a><o:p></o:p> causes this regression. <o:p></o:p> Hope someone can help. For a laptop it is better to have both - standby and power saving. Thank you.<o:p></o:p> Arno<o:p></o:p> <o:p> </o:p> </div> <o:p> </o:p> <pre>_______________________________________________<o:p></o:p></pre> <pre>Intel-gfx mailing list<o:p></o:p></pre> <pre><a href="mailto:Intel-gfx@lists.freedesktop.org" moz-do-not-send="true">Intel-gfx@lists.freedesktop.org</a><o:p></o:p></pre> <pre><a href="https://lists.freedesktop.org/mailman/listinfo/intel-gfx" moz-do-not-send="true">https://lists.freedesktop.org/mailman/listinfo/intel-gfx</a><o:p></o:p></pre> </blockquote> </div> </div> --------------------------------------------------------------------- Intel Finland Oy Registered Address: PL 281, 00181 Helsinki Business Identity Code: 0357606 - 4 Domiciled in Helsinki This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. </blockquote> </body> </html>