<div dir="ltr"><div>Hello again,</div><div><br></div><div>I am trying to repost this message with one smaller video since I got many error messages about oversized attachments.</div><div><br></div><div>BR,</div><div>-Risto</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">to 6. toukok. 2021 klo 7.57 Risto Paavola (<a href="mailto:risto.paavola@gmail.com">risto.paavola@gmail.com</a>) kirjoitti:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hello!<div><br></div><div>I noticed that when I compiled 5.12 and 5.12.1 kernels my display started to flicker maybe in once a second.</div><div><br></div><div>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.</div><div><br></div><div>I have attached a couple of videos to this email to demonstrateĀ the problem with kernelĀ version 5.12.1. Sorry about the file sizes.</div><div><br></div><div>These are the errors I am seeing in journal:</div><div>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]: [š”] Process 2376 (baloo_file) of user 1000 dumped core.<br></div><div><br></div><div>I have noticed that people were havingĀ these kinds of issues a couple of years ago with pstatesĀ and/or psr. Maybe this bug in the latestĀ kernel is also related to them?</div><div><br></div><div>Hardware:</div><div>Lenovo Thinkpad X1
Carbon, gen 2</div><div>Latest BIOS 1.40<br></div><div>Intel(R) Core(TM) i7-4550U CPU with Intel HD GraphicsĀ 5000</div><div>14.0" WQHD (2560x1440), 300nit, IPS</div><div></div><div><br></div><div>BestĀ Regards,</div><div>-Risto</div><div><span style="color:rgb(0,60,113);font-family:intel-clear,tahoma,Helvetica,helvetica,Arial,sans-serif;font-size:14px"><br></span></div><div><span style="color:rgb(0,60,113);font-family:intel-clear,tahoma,Helvetica,helvetica,Arial,sans-serif;font-size:14px"><br></span></div></div>
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