These are some logs labelled as important before the laptop stopped logging:
apr 12 18:23:50 kernel: iwlwifi 0000:3b:00.0: failed to update MAC 84:c5:a6:94:9c:92 apr 12 14:54:52 kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=762435 end=762436) time 1022 us, min 1073, max 1079, scanline start 1064, end 1130 apr 12 14:54:52 kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=762435 end=762436) time 1022 us, min 1073, max 1079, scanline start 1064, end 1130 apr 12 14:54:50 kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=762294 end=762295) time 916 us, min 1073, max 1079, scanline start 1049, end 1108 apr 12 14:54:49 kernel: iwlwifi 0000:3b:00.0: PHY ctxt cmd error. ret=-5 apr 12 13:29:56 kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=456662 end=456663) time 1229 us, min 1073, max 1079, scanline start 1049, end 1122 apr 12 13:29:55 kernel: iwlwifi 0000:3b:00.0: PHY ctxt cmd error. ret=-5 apr 12 13:29:47 kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=456096 end=456097) time 1395 us, min 1073, max 1079, scanline start 1046, end 1139 -- 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/1872367 Title: Cannot resume from suspend Status in linux package in Ubuntu: Confirmed Bug description: I often keep my laptop for some hours without using it, with the charging cable plugged. Sometimes when I want to use it again, the screen stays off, and cannot say if it's still suspended or just the screen doesn't turn on. One thing that I find suspicious is that checking the logs I have some only until some time after I last used it (few hours later) and then none util the next boot. To reboot the laptop I kept the power button down for about 10 seconds to turn it on, and then I could turn it on again. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-21-generic 5.4.0-21.25 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu25 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: fabio 2019 F.... pulseaudio CurrentDesktop: GNOME Date: Mon Apr 13 00:33:26 2020 InstallationDate: Installed on 2020-04-03 (8 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200401) MachineType: Dell Inc. XPS 15 7590 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic root=UUID=4f215b94-50a2-44af-b8c6-faf7cea8214a ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-21-generic N/A linux-backports-modules-5.4.0-21-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/25/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.5.0 dmi.board.name: 0VYV0G dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.5.0:bd12/25/2019:svnDellInc.:pnXPS157590:pvr:rvnDellInc.:rn0VYV0G:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 15 7590 dmi.product.sku: 0905 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872367/+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