Sorry for the delay in replying. I guess I missed a notification. I guess it's using s2idle by default, yes.
jonpad@jonpad-laptop ~ $ uname -a Linux jonpad-laptop 5.4.0-9-generic #12-Ubuntu SMP Mon Dec 16 22:34:19 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux jonpad@jonpad-laptop ~ $ sudo journalctl | grep "PM: suspend" | tail -2 Jan 16 08:51:52 jonpad-laptop kernel: PM: suspend entry (s2idle) Jan 16 09:00:23 jonpad-laptop kernel: PM: suspend exit jonpad@jonpad-laptop ~ $ cat /sys/power/mem_sleep [s2idle] deep Is it worth trying the latest set of nvidia drivers and seeing if that fixes it? At the moment, I've blacklisted all the nvidea/nouveau drivers, and the laptop just uses the intel chip. -- 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/1847937 Title: 'gpu has fallen off the bus' after return from suspend Status in linux package in Ubuntu: Triaged Bug description: With this message the only way to resume work is to reboot the system using power button. With kernel linux-image-5.3.0-13-generic everything is OK. Problem appeared afer upgrade to linux-image-5.3.0-17-generic and still happens in linux-image-5.3.0-18-generic. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-18-generic 5.3.0-18.19+1 ProcVersionSignature: Ubuntu 5.3.0-13.14-generic 5.3.0 Uname: Linux 5.3.0-13-generic x86_64 ApportVersion: 2.20.11-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: player 4451 F.... pulseaudio /dev/snd/controlC1: player 4451 F.... pulseaudio /dev/snd/controlC0: player 4451 F.... pulseaudio CurrentDesktop: KDE Date: Mon Oct 14 01:27:04 2019 HibernationDevice: RESUME=UUID=a58bb700-5818-4ca6-8351-fd4e5e28ea9e MachineType: LENOVO 20BG0016US ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-13-generic root=UUID=d0c33b75-6f04-4d53-bc3b-91924e3bcf91 ro quiet splash vga=current loglevel=0 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.3.0-13-generic N/A linux-backports-modules-5.3.0-13-generic N/A linux-firmware 1.183 SourcePackage: linux UpgradeStatus: Upgraded to eoan on 2019-10-08 (5 days ago) WifiSyslog: dmi.bios.date: 05/30/2018 dmi.bios.vendor: LENOVO dmi.bios.version: GNET88WW (2.36 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BG0016US dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGNET88WW(2.36):bd05/30/2018:svnLENOVO:pn20BG0016US:pvrThinkPadW540:rvnLENOVO:rn20BG0016US:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.family: ThinkPad W540 dmi.product.name: 20BG0016US dmi.product.sku: LENOVO_MT_20BG dmi.product.version: ThinkPad W540 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1847937/+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