apport information ** Tags added: apport-collected
** Description changed: Test case: Optimus hardware 20.04 updated Install 440 driver Enable nvidia_drm modeset either thru kernel parameter or a modeprobe.d file. reboot. Seen here - uname -a && xrandr --verbose |grep PRIME && sudo cat /sys/module/nvidia_drm/parameters/modeset Linux doug-Lenovo-IdeaPad-Y510P 5.4.0-9-generic #12-Ubuntu SMP Mon Dec 16 22:34:19 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux PRIME Synchronization: 0 PRIME Synchronization: 1 PRIME Synchronization: 1 [sudo] password for doug: Y While same machine, ect. while booting to previous 5.3.0-24 kernel uname -a && xrandr --verbose |grep PRIME && sudo cat /sys/module/nvidia_drm/parameters/modeset Linux doug-Lenovo-IdeaPad-Y510P 5.3.0-24-generic #26-Ubuntu SMP Thu Nov 14 01:33:18 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux PRIME Synchronization: 1 PRIME Synchronization: 1 PRIME Synchronization: 1 [sudo] password for doug: Y ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: nvidia-driver-440 440.44-0ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-9.12-generic 5.4.3 Uname: Linux 5.4.0-9-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu15 Architecture: amd64 CurrentDesktop: Unity:Unity7:ubuntu Date: Sun Jan 12 14:55:34 2020 InstallationDate: Installed on 2019-12-18 (25 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20191217) SourcePackage: nvidia-graphics-drivers-440 UpgradeStatus: No upgrade log present (probably fresh install) + --- + ProblemType: Bug + ApportVersion: 2.20.11-0ubuntu15 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC2: doug 1680 F.... pulseaudio + /dev/snd/controlC1: doug 1680 F.... pulseaudio + /dev/snd/controlC0: doug 1680 F.... pulseaudio + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 20.04 + InstallationDate: Installed on 2020-01-13 (1 days ago) + InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20191217) + MachineType: LENOVO 20217 + NonfreeKernelModules: nvidia_modeset nvidia + Package: linux (not installed) + ProcEnviron: + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcFB: 0 i915drmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-9-generic root=UUID=35a0dfe1-ac73-4c26-9a62-8e7b3a0838ad ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 5.4.0-9.12-generic 5.4.3 + RelatedPackageVersions: + linux-restricted-modules-5.4.0-9-generic N/A + linux-backports-modules-5.4.0-9-generic N/A + linux-firmware 1.184 + Tags: focal + Uname: Linux 5.4.0-9-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 09/18/2013 + dmi.bios.vendor: LENOVO + dmi.bios.version: 74CN44WW(V3.05) + dmi.board.asset.tag: No Asset Tag + dmi.board.name: VIQY0Y1 + dmi.board.vendor: LENOVO + dmi.board.version: 31900058STD + dmi.chassis.asset.tag: No Asset Tag + dmi.chassis.type: 10 + dmi.chassis.vendor: LENOVO + dmi.chassis.version: Lenovo IdeaPad Y510P + dmi.modalias: dmi:bvnLENOVO:bvr74CN44WW(V3.05):bd09/18/2013:svnLENOVO:pn20217:pvrLenovoIdeaPadY510P:rvnLENOVO:rnVIQY0Y1:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoIdeaPadY510P: + dmi.product.family: IDEAPAD + dmi.product.name: 20217 + dmi.product.sku: LENOVO_BI_IDEAPAD + dmi.product.version: Lenovo IdeaPad Y510P + dmi.sys.vendor: LENOVO ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1859357/+attachment/5320266/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1859357 Title: Prime synchronization breaks on kernel 5.4.0-9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1859357/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs