[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
** Description changed: - After upgrading from Ubtuntu 17.04 to Ubuntu 17.10 this bug started appearing. - When I lock my screen on my Lenovo T450s and the notebook sits in the dock (two external screens attached), one of the three things happen when I come back after some time and try to unlock (so it went to power save in-between): - * Most of the time the computer was just shut down and I have to start it again - * Sometimes the notebook screen flickers weirdly and one of the two other screens show pixel garbage - * The notebook screen shows the lock screen but is completely frozen. - Occasionally unlocking also works. + What happens is after I dock my laptop, lock it via clicking the lock icon, and wait ~30 minutes, one of the following three things happen ~50% of the time when I come back to unlock it: + * Most of the time the computer is found shut down. + * Sometimes the notebook screen flickers weirdly and one of the two external monitors show pixelation. + * The notebook screen shows the lock screen but is completely frozen. Occasionally unlocking works. - The last thing I find in /var/log/syslog is - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun + I have two external monitors attached to the docking station. + + When I dock my laptop, the battery indicator does recognize its + charging. + + I've not seen this issue when: + 1) With the laptop in the dock, while actively using the laptop. + 2) With the laptop out of the dock and no external monitors present. + + This bug started after upgrading from Ubtuntu 17.04 to Ubuntu 17.10. Using or not using the following kernel parameter didn't change anything: i915.enable_rc6=0 + + PC temperatures are normal as per lm-sensors. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-lowlatency 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-lowlatency 4.13.4 Uname: Linux 4.13.0-16-lowlatency x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: akops 3337 F pulseaudio /dev/snd/controlC0: akops 3337 F pulseaudio CurrentDesktop: ubuntu:GNOME Date: Thu Oct 26 10:44:11 2017 HibernationDevice: RESUME=/dev/mapper/system-swap_1 MachineType: LENOVO 20BWS2YL00 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-lowlatency root=/dev/mapper/system-root ro quiet splash i915.enable_rc6=0 crashkernel=384M-:128M vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-lowlatency N/A linux-backports-modules-4.13.0-16-lowlatency N/A linux-firmware1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-20 (5 days ago) dmi.bios.date: 07/08/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET51WW (1.16 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BWS2YL00 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET51WW(1.16):bd07/08/2015:svnLENOVO:pn20BWS2YL00:pvrThinkPadT450s:rvnLENOVO:rn20BWS2YL00:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T450s dmi.product.name: 20BWS2YL00 dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
1) It's a lenovo ThinkPad Ultra Dock Type 40A2 20V I didn't know docking stations had firmwares up until now. Is there a way to find out via Ubuntu? Otherwise I have to talk to my company helpdesk about it. 2) Ok, will report it there. Do I have to try with another kernel again? Since the /drm-intel-nightly/current/ I tried it with did not yield the same log outputs... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Alexander Kops: 1) What is the manufacturer, model, and firmware version of your docking station? 2) Your recent logs much better confirm the root cause. Hence, could you please cross post this issue to Intel following their instructions for 1.1-DRM KERNEL via https://01.org/linuxgraphics/documentation/how-report-bugs ? Please provide a direct URL to this new report once made so that it may be tracked. ** Changed in: linux (Ubuntu) Status: Incomplete => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
** Tags added: kernel-bug-exists-upstream kernel-bug-exists- upstream-4.14-rc8 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Today I installed 4.14.0-041400rc8-generic I had a crash again, this time the computer did not power down but I came back to a completely frozen lock screen (only visible on the main monitor, not the secondary screens), so I had to hard reboot. I'll attach kern.log and syslog ** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+attachment/5005423/+files/kern.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Syslog from todays crash with 4.14.0-041400rc8-generic ** Attachment added: "syslog" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+attachment/5005424/+files/syslog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Regarding your other questions: 1) The issues have not happened without locking so far. Everything works smoothly when I don't lock (so that's why my workaround is to not lock the screen when I'm only away for short, although it's against company policies...) 2) When docked in the docking station I can see the loading battery icon and "Fully charged" 3,4,5) I have to test this separately again, maybe on the weekend. So far I did not see the issues when the computer was undocked (and no external displays present). For the points raised in #6, I will test this and answer back later. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Alexander Kops, yes please. Also, it would be helpful to attach the information via SSH or netconsole via https://help.ubuntu.com/community/DebuggingSystemCrash . In addition, to follow up: 1) Have the issues happened without having to lock the computer (i.e. during active daily use, with the PC in or not in the docking station)? No need for a test to this specifically, just as per your recollection? 2) When the computer is plugged into the docking station, does the OS recognize this by showing the battery icon in a charging/charged state? 3) Does this issue happen if you don't dock the computer in the docking station, and only have the power cord plugged into the computer directly (i.e. no external monitors plugged)? 4) Does the issue happen bypassing the docking station, and plugging the monitors and power directly into the laptop? 5) Does this issue happen if the PC has nothing connected (i.e. keep it on battery, and no external monitors)? 6) Regarding your question in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/comments/12 : >"Can you advise on how to narrow down the error to the actual state where it >happens?" What seems strange is how after locking the computer with it plugged into the docking station, presuming the power cord is plugged into the docking station, there are a few events in order of most to least interest: * The PC is set to suspend on battery. I originally presumed that this is the issue trigger, but was thrown off as the GUI screenshots are set to do this only on battery. * The screen dims when inactive. You could try rapidly toggling the brightness max up/down. * The WiFi turning off. You could try toggling the WiFi hard swich/key combo repeatedly. * The lock event itself. You could try locking and immediately unlocking multiple times in quick succession. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
So if I got you right, additionally you want me to install the latest mainline 4.14-rc8, reproduce the bug there and then attach kern.log and syslog here? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Alexander Kops, to advise, if the root cause problem is drm-intel (I'll let Kai-Heng Feng speak to this as the root cause since he asked you to test this), and this is confirmed an issue in the latest mainline kernel (which is now 4.14-rc8) then testing drm-intel makes sense. This is due to how Ubuntu sources paches from mainline (not drm-intel), and some patches, but not necessarily all, are sent from drm-intel to mainline. Also, drm-intel is an experimental, fast changing tree, where some patches that don't and will never exist in mainline can be removed/added at any time. Despite this, while you did note the kernel crash as per #4, and the errors as per the Bug Description, you didn't include the log in its entirety, which would allow one to best confirm this is the root cause. I took a peak at the recent attachments, and while I'm not an expert, I didn't find better confirmation either way. Kai-Heng Feng, could you please advise on your thoughts regarding the root cause here? Would an SSH/netconsole dump be helpful here as per https://help.ubuntu.com/community/DebuggingSystemCrash, or you think enough information is available? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
The kern.log ** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+attachment/5004796/+files/kern.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
So I used the kernel at drm-intel-nightly/current/ It ran fine the whole day, but now I saw again that the notebook was shut down after locking the screen and coming back after half an hour. But I'm not sure if it's the same bug, since I don't see any of the error messages previously reported in this bug report in the logs. I'll attach syslog and kern.log. The problem happened between 17:00 and 17:30 ** Attachment added: "syslog" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+attachment/5004795/+files/syslog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Please try kernel here http://kernel.ubuntu.com/~kernel-ppa/mainline /drm-intel-nightly/current/. If the same issue still happens, file an upstream bug at: http://bugzilla.freedesktop.org Product: DRI Component: DRM/Intel -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
1) I forgot to mention that I removed "i915.enable_rc6=0" after I tried the first mainline kernel. So everything after that was already with RC6 enabled. 2) I'll try to reproduce it with the latest mainline kernel on Monday and attach the requested files. 4) I can't hear the fan and the temperatures seem to be ok right now (after a day of running), but I will keep monitoring it sensors iwlwifi-virtual-0 Adapter: Virtual device temp1:+37.0°C thinkpad-isa- Adapter: ISA adapter fan1: 0 RPM acpitz-virtual-0 Adapter: Virtual device temp1:+46.0°C (crit = +128.0°C) coretemp-isa- Adapter: ISA adapter Package id 0: +45.0°C (high = +105.0°C, crit = +105.0°C) Core 0:+45.0°C (high = +105.0°C, crit = +105.0°C) Core 1:+45.0°C (high = +105.0°C, crit = +105.0°C) pch_wildcat_point-virtual-0 Adapter: Virtual device temp1:+47.0°C -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Alexander Kops: 1) Could you please remove the kernel parameter "i915.enable_rc6=0", and any other non-default kernel parameters and keep it that way going forward? It is best to keep this as close to the default configurations as possible. 2) Could you please reproduce the problem with the latest mainline kernel, and attach to this report as separate files syslog and kernel.log? 3) Please advise which of the three events happened as per the Bug Description. 4) To satisfy a curiousity, does your computer's fan run loudly, and/or does the computer run hot temperature wise? Temperature monitoring information may be found at: https://help.ubuntu.com/community/SensorInstallHowto I would recommend polling only once every few seconds. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
** Tags removed: bios-outdated-1.30 ** Tags added: latest-bios-1.30 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Here the screen lock settings in English again. ** Attachment added: "screen-lock-settings.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+attachment/5003089/+files/screen-lock-settings.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Note that I usually lock the screen manually via the top right menu when I leave the computer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Here a screenshot of the energy settings (switched language to english). I'm not sure if there is any other setting where I could influence the behaviour. ** Attachment added: "energy-settings.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+attachment/5003088/+files/energy-settings.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Automatic locking is set to on after 3 minutes. ** Attachment added: "lockscreen.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+attachment/5003087/+files/lockscreen.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Alexander Kops, I'd like to circle back on some issues I raised that were unaddressed/unanswered in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/comments/10: 1) Please make a comment to if you have the GUI setup to suspend and/or hibernate after a set amount of time, and how long the timeout is. 2) Please provide a screenshot of the GUI and how you have it configured for inactivity regarding the above. 3) Please stop posting snips of logs. As I mentioned before, it is not helpful here. Instead, attach the log uncompressed/untarred in its entirety with no modifications. 4) That's great you found fedora report who is reporting a similar error message. Unfortunately, there is so little information in that report, its largely useless. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Somebody else seems to have a similar problem: https://bugzilla.redhat.com/show_bug.cgi?id=1506339 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
I updated my BIOS to the current version ~ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date JBET66WW (1.30 ) 09/13/2017 It didn't fix the [Firmware Bug] lines in the syslog though Also the actual bug still appears. There seem to be some lines in the log that I haven't seen before though Nov 3 12:37:05 xxx kernel: [ 8137.161988] [drm:pipe_config_err [i915]] *ERROR* mismatch in pixel_rate (expected 148500, found 296999) Nov 3 12:37:05 xxx kernel: [ 8137.162024] [drm:pipe_config_err [i915]] *ERROR* mismatch in shared_dpll (expected 9818ca8b46e0, found 9818ca8b47 78) Nov 3 12:37:05 xxx kernel: [ 8137.162051] [drm:pipe_config_err [i915]] *ERROR* mismatch in base.adjusted_mode.crtc_clock (expected 148500, found 296999 ) Nov 3 12:37:05 xxx kernel: [ 8137.162076] [drm:pipe_config_err [i915]] *ERROR* mismatch in port_clock (expected 27, found 54) Nov 3 12:37:05 xxx kernel: [ 8137.162078] pipe state doesn't match! Can you advise on how to narrow down the error to the actual state where it happens? Can it be achieved through changing settings in /etc/systemd/logind.conf? Because currently the only way to reproduce it is locking the screen while the computer is sitting in the docking station and come back after a longer period of time (e.g. 30 minutes) ** Bug watch added: Red Hat Bugzilla #1506339 https://bugzilla.redhat.com/show_bug.cgi?id=1506339 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Oh, right now I'm running on the BIOS version JBET51WW (1.16 ) 07/08/2015 That's indeed a lot behind the current one. I'll try to update and report back. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Alexander Kops, to advise, posting small snips of syslog, or any log for that matter, isn't helpful, as what you posted could be a result of some other issue earlier in the log. Instead, you would want to post the log in its entirety, and advise when in the log you performed an action correlated to the problem. In this case, the event most correlated to your computer improperly shutting down is the act of locking it. With this in mind, I'd like to follow up on your comment: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/comments/8 >"Yes, I think it only happens after suspend though." It needs to be confirmed without doubt via you checking the GUI settings that your computer is set after you lock the screen that it will only turn off the monitor, only suspend, or turn off the monitor first, then some time after this event, it goes into suspend, etc. Could you please advise to which situation precisely is the case? Also, with issues like these, folks typically update their buggy, outdated, and insecure BIOS prior to reporting, as BIOS bugs can manifest issues like this. As per your dmesg: https://launchpadlibrarian.net/343008378/CurrentDmesg.txt [0.00] [Firmware Bug]: TSC_DEADLINE disabled due to Errata; please update microcode to version: 0x25 (or later) ... [0.120112] pnp 00:01: [Firmware Bug]: PNP resource [mem 0xfed1-0xfed13fff] covers only part of :00:00.0 Intel MCH; extending to [mem 0xfed1-0xfed17fff] In addition, there are numerous BIOS bugs fixed as identified by Lenovo: https://pcsupport.lenovo.com/us/en/products/LAPTOPS-AND-NETBOOKS/THINKPAD-T-SERIES-LAPTOPS/THINKPAD-T450S/downloads/DS102110 Once updated, could you please post the result of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Tried it now with kernel 4.14.0-041400rc7-generic and it still appears. (Notebook sits in dock, locked the screen, let it sit for 45 minutes, came back to computer being shut down). In /var/log/syslog I find Nov 1 10:01:05 xxx kernel: [ 404.329288] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Nov 1 10:02:30 xxx kernel: [ 489.669089] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Nov 1 10:04:38 xxx kernel: [ 617.781995] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Hi 1) When using the current kernels 4.13.0-16-generic or 4.13.0-16-lowlatency it is insofar reproducible, that it happens most of the time (I'd say more than 50%). But not every time, that's why I'm not confident to say the bug is fixed after one or two unlocks. 2) Yes, I think it only happens after suspend though. When I lock the screen and the computer goes into power save mode, then this would happen. If I only lock it and immediately unlock, this is not a problem. 3) I installed the rc7 and indeed the internet works with it. I'll be able to use it on a full work day on Wednesday. I'll report back on the end of the day Wednesday. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Alexander Kops, to clarify: 1) When using the Ubuntu kernel, is the issue consistently reproducible? 2) You mention in your Bug Description: >"...one of the three things happen when I come back after some time and try to >unlock (so it went to power save in-between)" Are you stating that only the screen turned off but the computer is still on, or the computer is set to either suspend or hibernate after a certain amount of time? 3) Kernel 4.14-rc7 just came out, which might let you test with internet working. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
So I tried to reproduce it with the kernel v4.14-rc6 (bb176f67090ca54869fc1262c913aa69d2ede070) I tried to get that error for an hour with some lock/unlock, suspend and hibernate cycles but it didn't appear. Unfortunately I can't test it for a whole working day, since the internet is not working with that kernel (network manager shows everything is connected, but typing "route" on the command line yields an empty result). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Alexander Kops, thank you for reporting this and helping make Ubuntu better. In order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following: 1) The one to test is at the very top line at the top of the page (not the daily folder). 2) The release names are irrelevant. 3) The folder time stamps aren't indicative of when the kernel actually was released upstream. 4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . If testing on your main install would be inconvenient, one may: 1) Install Ubuntu to a different partition and then test this there. 2) Backup, or clone the primary install. If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description: kernel-fixed-upstream kernel-fixed-upstream-X.Y-rcZ Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists. If the mainline kernel does not fix the issue, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-X.Y-rcZ Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream. Also, you don't need to apport-collect further unless specifically requested to do so. It is most helpful that after testing of the latest upstream kernel is complete, you mark this report Status Confirmed. Lastly, to keep this issue relevant to upstream, please continue to test the latest mainline kernel as it becomes available. Thank you for your help. ** Tags added: bios-outdated-1.30 regression-release ** Description changed: - I upgraded from Ubtuntu 17.04 to Ubuntu 17.10 and this bug started appearing (didn't have this with the versions before). - When I lock my screen on my Lenovo T450s and the notebook sits in the dock (two external screens attached), one of the three things happen when I come back after some time and try to unlock (so it went to power safe inbetween): + After upgrading from Ubtuntu 17.04 to Ubuntu 17.10 this bug started appearing. + When I lock my screen on my Lenovo T450s and the notebook sits in the dock (two external screens attached), one of the three things happen when I come back after some time and try to unlock (so it went to power save in-between): * Most of the time the computer was just shut down and I have to start it again * Sometimes the notebook screen flickers weirdly and one of the two other screens show pixel garbage * The notebook screen shows the lock screen but is completely frozen. Occasionally unlocking also works. The last thing I find in /var/log/syslog is [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun - Note: Ubuntu uses kernel version 4.13.0-16-lowlatency for some reason, - but the issue also appears when I boot with the generic version. - - I reported already here, but was advised to create a new bug: - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1695989/comments/15 + Using or not using the following kernel parameter didn't change anything: + i915.enable_rc6=0 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-lowlatency 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-lowlatency 4.13.4 Uname: Linux 4.13.0-16-lowlatency x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/controlC1: akops 3337 F pulseaudio - /dev/snd/controlC0: akops 3337 F pulseaudio + USERPID ACCESS COMMAND + /dev/snd/controlC1: akops 3337 F pulseaudio + /dev/snd/controlC0: akops 3337 F pulseaudio CurrentDesktop: ubuntu:GNOME Date: Thu Oct 26 10:44:11 2017 HibernationDevice: RESUME=/dev/mapper/system-swap_1 MachineType: LENOVO 20BWS2YL00 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-lowlatency root=/dev/mapper/system-root ro quiet splash i915.enable_rc6=0 crashkernel=384M-:128M vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-4.13.0-16-lowlatency N/A - linux-backports-modules-4.13.0-16-lowlatency N/A - linux-firmware1.169 + linux-restricted-modules-4.13.0-16-lowlatency N/A +
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Another thing I found in /var/log/kern.log inbetween the FIFI underrun messages is this: Oct 26 09:32:02 ako-notebook kernel: [58379.446230] [ cut here ] Oct 26 09:32:02 ako-notebook kernel: [58379.446267] WARNING: CPU: 2 PID: 2653 at /build/linux-XO_uEE/linux-4.13.0/drivers/gpu/drm/i915/intel_display.c:12273 intel_atomic_commit_tail+0xda3/0xf80 [i915] Oct 26 09:32:02 ako-notebook kernel: [58379.446267] Modules linked in: ccm ipt_MASQUERADE nf_nat_masquerade_ipv4 xfrm_user xfrm_algo iptable_nat nf_nat_ipv4 br_netfilter bridge stp llc aufs bnep binfmt_misc cmdlinepart intel_spi_platform intel_spi spi_nor mtd btusb btrtl btbcm btintel bluetooth arc4 ecdh_generic uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media intel_rapl x86_pkg_temp_thermal intel_powerclamp iwlmvm coretemp kvm_intel mac80211 kvm irqbypass intel_cstate intel_rapl_perf iwlwifi snd_seq_midi joydev snd_seq_midi_event input_leds snd_rawmidi serio_raw wmi_bmof snd_hda_codec_hdmi thinkpad_acpi snd_hda_codec_realtek cfg80211 snd_seq intel_pch_thermal snd_hda_codec_generic nvram rtsx_pci_ms snd_hda_intel memstick snd_hda_codec snd_seq_device snd_hda_core snd_hwdep snd_pcm mei_me snd_timer Oct 26 09:32:02 ako-notebook kernel: [58379.446292] mei lpc_ich shpchp snd soundcore mac_hid xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack libcrc32c iptable_filter parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt hid_generic usbhid hid rtsx_pci_sdmmc i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt fb_sys_fops ahci e1000e libahci drm rtsx_pci ptp pps_core wmi video Oct 26 09:32:02 ako-notebook kernel: [58379.446324] CPU: 2 PID: 2653 Comm: gnome-shell Tainted: G U W 4.13.0-16-lowlatency #19-Ubuntu Oct 26 09:32:02 ako-notebook kernel: [58379.446325] Hardware name: LENOVO 20BWS2YL00/20BWS2YL00, BIOS JBET51WW (1.16 ) 07/08/2015 Oct 26 09:32:02 ako-notebook kernel: [58379.446325] task: a06e241d8000 task.stack: ae6b88e08000 Oct 26 09:32:02 ako-notebook kernel: [58379.446345] RIP: 0010:intel_atomic_commit_tail+0xda3/0xf80 [i915] Oct 26 09:32:02 ako-notebook kernel: [58379.446346] RSP: 0018:ae6b88e0bb08 EFLAGS: 00010286 Oct 26 09:32:02 ako-notebook kernel: [58379.446347] RAX: 0019 RBX: a06e1b1d8310 RCX: 0006 Oct 26 09:32:02 ako-notebook kernel: [58379.446347] RDX: RSI: 0086 RDI: a06e3dc8dc70 Oct 26 09:32:02 ako-notebook kernel: [58379.446348] RBP: ae6b88e0bbc0 R08: 04df R09: 0004 Oct 26 09:32:02 ako-notebook kernel: [58379.446348] R10: 0001 R11: 0001 R12: a06e22a1d000 Oct 26 09:32:02 ako-notebook kernel: [58379.446349] R13: a06e251bd000 R14: a06d809ee000 R15: a06e1b1d8308 Oct 26 09:32:02 ako-notebook kernel: [58379.446350] FS: 7fc097cde240() GS:a06e3dc8() knlGS: Oct 26 09:32:02 ako-notebook kernel: [58379.446351] CS: 0010 DS: ES: CR0: 80050033 Oct 26 09:32:02 ako-notebook kernel: [58379.446351] CR2: 14a85b9d1000 CR3: 00051a4b5000 CR4: 003406e0 Oct 26 09:32:02 ako-notebook kernel: [58379.446352] DR0: DR1: DR2: Oct 26 09:32:02 ako-notebook kernel: [58379.446353] DR3: DR6: fffe0ff0 DR7: 0400 Oct 26 09:32:02 ako-notebook kernel: [58379.446353] Call Trace: Oct 26 09:32:02 ako-notebook kernel: [58379.446370] ? __i915_sw_fence_complete+0xb4/0x190 [i915] Oct 26 09:32:02 ako-notebook kernel: [58379.446388] intel_atomic_commit+0x3c7/0x470 [i915] Oct 26 09:32:02 ako-notebook kernel: [58379.446399] ? drm_atomic_check_only+0x37b/0x540 [drm] Oct 26 09:32:02 ako-notebook kernel: [58379.446406] drm_atomic_commit+0x4b/0x50 [drm] Oct 26 09:32:02 ako-notebook kernel: [58379.446412] drm_atomic_helper_connector_dpms+0xfc/0x170 [drm_kms_helper] Oct 26 09:32:02 ako-notebook kernel: [58379.446421] drm_mode_connector_set_obj_prop+0x36/0x80 [drm] Oct 26 09:32:02 ako-notebook kernel: [58379.446427] drm_mode_obj_set_property_ioctl+0x131/0x170 [drm] Oct 26 09:32:02 ako-notebook kernel: [58379.446433] ? drm_mode_obj_find_prop_id+0x40/0x40 [drm] Oct 26 09:32:02 ako-notebook kernel: [58379.446439] drm_ioctl_kernel+0x5d/0xb0 [drm] Oct 26 09:32:02 ako-notebook kernel: [58379.446447] drm_ioctl+0x31b/0x3d0 [drm] Oct 26 09:32:02 ako-notebook kernel: [58379.446453] ? drm_mode_obj_find_prop_id+0x40/0x40 [drm] Oct 26 09:32:02 ako-notebook kernel:
[Bug 1727662] Re: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
One thing that I tried was disabling RC6 in grub, but that didn't seem to help: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_rc6=0" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: Crashes after unlock: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
