<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="EN-IE" link="blue" vlink="purple" style="word-wrap:break-word"> <div class="WordSection1"> <p class="MsoNormal">See: <a href="https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs"> https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs</a><span style="mso-fareast-language:EN-US"><o:p></o:p></span></p> <p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p> <div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm"> <p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> <b>On Behalf Of </b>Risto Paavola<br> <b>Sent:</b> torstai 6. toukokuuta 2021 8.20<br> <b>To:</b> jani.nikula@linux.intel.com; joonas.lahtinen@linux.intel.com; Vivi, Rodrigo <rodrigo.vivi@intel.com>; airlied@linux.ie; daniel@ffwll.ch; intel-gfx@lists.freedesktop.org<br> <b>Cc:</b> linux-kernel@vger.kernel.org; dri-devel@lists.freedesktop.org<br> <b>Subject:</b> Re: [Intel-gfx] i915 flickering with 5.12.X kernels<o:p></o:p></span></p> </div> </div> <p class="MsoNormal"><o:p> </o:p></p> <div> <div> <p class="MsoNormal">Hello again,<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">I am trying to repost this message with one smaller video since I got many error messages about oversized attachments.<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">BR,<o:p></o:p></p> </div> <div> <p class="MsoNormal">-Risto<o:p></o:p></p> </div> <p class="MsoNormal"><o:p> </o:p></p> <div> <div> <p class="MsoNormal">to 6. toukok. 2021 klo 7.57 Risto Paavola (<a href="mailto:risto.paavola@gmail.com">risto.paavola@gmail.com</a>) kirjoitti:<o:p></o:p></p> </div> <blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm"> <div> <p class="MsoNormal">Hello!<o:p></o:p></p> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">I noticed that when I compiled 5.12 and 5.12.1 kernels my display started to flicker maybe in once a second.<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">With kernel 5.11.16 or below that there is no flickering. I'm using Gentoo testing and all other packages remained the same when I switched between 5.11.16 and 5.12.X.<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">I have attached a couple of videos to this email to demonstrate the problem with kernel version 5.12.1. Sorry about the file sizes.<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">These are the errors I am seeing in journal:<o:p></o:p></p> </div> <div> <p class="MsoNormal">May 06 07:49:24 nyrkki kernel: ACPI Error: Needed type [Reference], found [Integer] 0000000090bcaee8 (20210105/exresop-66)<br> May 06 07:49:24 nyrkki kernel: ACPI Error: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20210105/dswexec-431)<br> May 06 07:49:24 nyrkki kernel: ACPI Error: Aborting method \_PR.CPU0._PDC due to previous error (AE_AML_OPERAND_TYPE) (20210105/psparse-529)<br> May 06 07:49:47 nyrkki kernel: DMAR: DRHD: handling fault status reg 2<br> May 06 07:49:47 nyrkki kernel: DMAR: [DMA Write] Request device [00:02.0] PASID ffffffff fault addr c7fe5000 [fault reason 05] PTE Write access is not set<br> May 06 07:49:47 nyrkki kernel: Bluetooth: hci0: unexpected event for opcode 0xfc2f<br> May 06 07:49:49 nyrkki sddm-helper[2258]: gkr-pam: unable to locate daemon control file<br> May 06 07:49:52 nyrkki kwin_x11[2322]: kwin_xkbcommon: XKB: couldn't find a Compose file for locale "en_FI.UTF-8"<br> May 06 07:49:58 nyrkki systemd-coredump[4290]: [🡕] Process 2376 (baloo_file) of user 1000 dumped core.<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">I have noticed that people were having these kinds of issues a couple of years ago with pstates and/or psr. Maybe this bug in the latest kernel is also related to them?<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">Hardware:<o:p></o:p></p> </div> <div> <p class="MsoNormal">Lenovo Thinkpad X1 Carbon, gen 2<o:p></o:p></p> </div> <div> <p class="MsoNormal">Latest BIOS 1.40<o:p></o:p></p> </div> <div> <p class="MsoNormal">Intel(R) Core(TM) i7-4550U CPU with Intel HD Graphics 5000<o:p></o:p></p> </div> <div> <p class="MsoNormal">14.0" WQHD (2560x1440), 300nit, IPS<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">Best Regards,<o:p></o:p></p> </div> <div> <p class="MsoNormal">-Risto<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> </div> </blockquote> </div> </div> </div> </div> </body> </html>