There are four patches added to i915 from Ubuntu-5.3.0-45.37 to Ubuntu-5.3.0-46.38, like in https://people.canonical.com/~alexhung/LP1873179/patches/
I built four kernels, each with one patch removed: https://people.canonical.com/~alexhung/LP1873179/ For example, p-1 = Ubuntu-5.3.0-46.38 with Revert "drm/i915: Schedue request retirement in execlists_user_end()" p-2 = p-1 with Revert "drm/i915/userptr: fix size calculation" p-3 = p-2 ... p-all = p3 ... Let us know which one caused your problem and we can discuss further. If a patch is identified, I am also interested in knowing whether focal kernel (based on 5.4) is able to solve your problem. If so, we can investigate where we can backport anything from 5.4 to 5.3. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1873179 Title: i915 bug: ZOOM messenger is very slow w/ kernel 5.3.0-46 Status in linux package in Ubuntu: Confirmed Bug description: Hi. I'm running Xubuntu 5.3.0-45.37-generic 5.3.18 on ThinkPad P1 Gen2 (ThinkPad Carbon X1 without Nvidia graphics). This bug happens on Eoan kernel 5.3.0-46 only. Kernels -45 and earlier don't have it, so I had to revert to 5.3.0-45. Steps to reproduce: 1. Install ZOOM .deb from https://zoom.us/download?os=linux 2. Start it. 3. Try to start ZOOM meeting. 4. GUI becomes very-very slow, but not completely frozen. No crashes. 5. As soon as ZOOM meeting window is closed, lines "Resetting rcs0 for hang on rcs0" stop coming and GUI is OK. In syslog I see following lines: --------------------------------------------------- [ 111.956936] i915 0000:00:02.0: GPU HANG: ecode 9:0:0x00000000, hang on rcs0 [ 111.957947] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 [ 119.951013] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 [ 127.949941] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 [ 135.950174] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 [ 143.950558] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 [ 151.950819] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 --------------------------------------------------- --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu8.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: vburdo 1450 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 19.10 InstallationDate: Installed on 2020-03-15 (31 days ago) InstallationMedia: Xubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: LENOVO 20QUS11E00 Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-45-generic root=UUID=6059e627-eadb-4530-bba0-ac77ea95ba2d ro quiet splash resume=UUID=2ba66786-beee-495b-bcff-db0f19c70ccb vt.handoff=7 ProcVersionSignature: Ubuntu 5.3.0-45.37-generic 5.3.18 RelatedPackageVersions: linux-restricted-modules-5.3.0-45-generic N/A linux-backports-modules-5.3.0-45-generic N/A linux-firmware 1.183.5 Tags: eoan Uname: Linux 5.3.0-45-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip docker lp lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/20/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N2OET42W (1.29 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QUS11E00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN2OET42W(1.29):bd01/20/2020:svnLENOVO:pn20QUS11E00:pvrThinkPadP1Gen2:rvnLENOVO:rn20QUS11E00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad P1 Gen 2 dmi.product.name: 20QUS11E00 dmi.product.sku: LENOVO_MT_20QU_BU_Think_FM_ThinkPad P1 Gen 2 dmi.product.version: ThinkPad P1 Gen 2 dmi.sys.vendor: LENOVO modified.conffile..etc.default.apport: # set this to 0 to disable apport, or to 1 to enable it # you can temporarily override this with # sudo service apport start force_start=1 enabled=0 mtime.conffile..etc.default.apport: 2020-03-16T16:40:07.038972 --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu8.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: vburdo 1450 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 19.10 InstallationDate: Installed on 2020-03-15 (31 days ago) InstallationMedia: Xubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: LENOVO 20QUS11E00 Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-45-generic root=UUID=6059e627-eadb-4530-bba0-ac77ea95ba2d ro quiet splash resume=UUID=2ba66786-beee-495b-bcff-db0f19c70ccb vt.handoff=7 ProcVersionSignature: Ubuntu 5.3.0-45.37-generic 5.3.18 RelatedPackageVersions: linux-restricted-modules-5.3.0-45-generic N/A linux-backports-modules-5.3.0-45-generic N/A linux-firmware 1.183.5 Tags: eoan Uname: Linux 5.3.0-45-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip docker lp lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/20/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N2OET42W (1.29 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QUS11E00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN2OET42W(1.29):bd01/20/2020:svnLENOVO:pn20QUS11E00:pvrThinkPadP1Gen2:rvnLENOVO:rn20QUS11E00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad P1 Gen 2 dmi.product.name: 20QUS11E00 dmi.product.sku: LENOVO_MT_20QU_BU_Think_FM_ThinkPad P1 Gen 2 dmi.product.version: ThinkPad P1 Gen 2 dmi.sys.vendor: LENOVO modified.conffile..etc.default.apport: # set this to 0 to disable apport, or to 1 to enable it # you can temporarily override this with # sudo service apport start force_start=1 enabled=0 mtime.conffile..etc.default.apport: 2020-03-16T16:40:07.038972 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1873179/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
