Hi @ktecho, I have gone over all of the logs and files you have provided, and unfortunately nothing is standing out as the cause of the reboots.
If there was a kernel log of what happened at the reboot time, there is very little to investigate this. Without a serial port to capture the kernel log, I don't know the best way to get the kernel messages in this case. The problem with it rebooting is, it may be happening before the logs hit the disk, or there could just be nothing in the logs if it was a hardware issue that caused the reboot. Also. because you hit this issue using the XanMod kernel and an Ubuntu kernel, this isn't something specific to the Ubuntu kernels, which makes it harder to investigate. I think the next steps would be: 1) check the log files in /var/log/ (mostly dmesg.* and syslog.*) and see if any contain the reboot. That could provide useful info possibly. If they contain sensitive data you would rather not share, you can trim them down to the boot->reboot->boot section of the logs. 2) update the BIOS to the latest BIOS, and see if that fixes anything. 3) You can try using a Mainline build (https://wiki.ubuntu.com/Kernel/MainlineBuilds) with a much newer kernel, and see if that fixes it. The documentation in that link does seem dated, but the info is still valid, and still points to the mainline kernels. You can try installing one of the latest kernels, and testing with it. But, as this takes days to reproduce, I am not sure how feasible this is. I would recommend at least 1) and 2) from above. I understand the 3) may not be possible though. On a side note: I know you said that Windows is stable, but Windows and Linux sometimes suspend a system differently, so maybe something dealing with the suspend/resume is triggering a hardware/acpi bug. -- 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/2076296 Title: LG gram suddenly restarts itself Status in linux package in Ubuntu: New Bug description: Ubuntu version: Kubuntu 24.04 LTS Kernel version: 6.8.0-39-generic Al packages updated to current. Since 1 or 2 months ago, the computer crashes, restarting suddenly. What happens is the power light goes off and everything shuts down, then it starts again with the LG gram logo. It would appear as a hardware problem, but I've had Windows 10 installed for a few weeks and it worked flawlessly. I had the XanMod kernel installed, so I thought the problem could be related with that, but I've now reinstalled cleanly Kubuntu 24.04 without any PPA related with drivers, and the problem is appearing again. ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.8.0-39-generic 6.8.0-39.39 ProcVersionSignature: Ubuntu 6.8.0-39.39-generic 6.8.8 Uname: Linux 6.8.0-39-generic x86_64 ApportVersion: 2.28.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/seq: ktecho 1310 F.... pipewire /dev/snd/controlC0: ktecho 1310 F.... pipewire ktecho 1312 F.... wireplumber CRDA: N/A CasperMD5CheckResult: unknown CurrentDesktop: KDE Date: Thu Aug 8 00:17:34 2024 InstallationDate: Installed on 2024-08-06 (1 days ago) InstallationMedia: Kubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240425.1) MachineType: LG Electronics 15ZD90R-G.AX75B ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-39-generic root=UUID=47a784d6-b4ab-40fe-bdcc-97c5ea95164f ro quiet splash acpi_mask_gpe=0x6E vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-6.8.0-39-generic N/A linux-backports-modules-6.8.0-39-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/03/2023 dmi.bios.release: 0.1 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: R0ZH0330 X64 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 15Z90R dmi.board.vendor: LG Electronics dmi.board.version: FAB1 dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LG Electronics dmi.chassis.version: 0.1 dmi.ec.firmware.release: 33.0 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrR0ZH0330X64:bd02/03/2023:br0.1:efr33.0:svnLGElectronics:pn15ZD90R-G.AX75B:pvr0.1:rvnLGElectronics:rn15Z90R:rvrFAB1:cvnLGElectronics:ct10:cvr0.1:sku: dmi.product.family: gram PC dmi.product.name: 15ZD90R-G.AX75B dmi.product.version: 0.1 dmi.sys.vendor: LG Electronics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2076296/+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
