Guessing from the description of the symptoms and the dependency on linux-modules-extra I would suspect the problem to be in the i915 driver (which is responsible for accelerated graphics on Intel GPUs). That would also explain problems of SDM to come up. Safe mode would likely choose a much lower resolution on whatever fallback graphics driver the system comes up with.
But then breaking between -39 and -40 makes no sense since there is no change at all to that driver between those versions. Breaking between -40 and -41 would be more plausible since there are 4: e53980320c13 drm/i915: update new TMDS clock setting defined by VBT 04d6fb5f9f53 drm/i915: Fix SEL_FETCH_PLANE_*(PIPE_B+) register addresses bf7bdd3e16a4 drm/i915: Check EDID for HDR static metadata when choosing blc 082bac8947b5 drm/i915/display/psr: Unset enable_psr2_sel_fetch if other checks in intel_psr2_config_valid() fails The first one to me would sound most likely but I don't have that much insight into that driver, so it is hard to make connections between the descriptions and the symptoms described. -- 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/1982479 Title: [Medion Akoya E3223] Latest kernel breaks LCD screen Status in linux package in Ubuntu: Confirmed Bug description: Hi, I just installed Lubuntu 22.04 on a brandnew notebook, and everything was working well until rebooting after update: Both the boot splash and the X11 screens are jumping and appear instable afer a few seconds, as out of sync and running through. It absolutely looks like a hardware problem like a broken LCD connector cable, but it isn't: booting fresh from the Lubuntu usb stick and evernything works. I have a second machine, exactly same model and installation procedure, which was working well for some weeks and had exactly the same problem after upgrading. disabling the boot splash did not help. But booting into the older vmlinuz-5.15.0-25-generic , that came with the Lubuntu installation iso file, instead of the latest vmlinuz-5.15.0-41-generic solved the problem. With the older kernel, everything is stable and fine. So between the 25 and the 41 revision of the kernel there came something in which reliably breaks the screen configuration on both my two notebooks of identical hardware. Both the X11 login screen and the desktop do work normally for about five seconds and then start running through like one of these old days analog screens when out of sync or a cable not plugged in correctly. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-5.15.0-41-generic 5.15.0-41.44 ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30 Uname: Linux 5.15.0-25-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: hadmut 1857 F.... pulseaudio CRDA: N/A CasperMD5CheckResult: unknown CurrentDesktop: LXQt Date: Thu Jul 21 12:28:31 2022 InstallationDate: Installed on 2022-07-20 (0 days ago) InstallationMedia: Lubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) Lsusb: Bus 002 Device 002: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit Ethernet Adapter Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0aaa Intel Corp. Bluetooth 9460/9560 Jefferson Peak (JfP) Bus 001 Device 002: ID 0c45:6321 Microdia HP Integrated Webcam Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: MEDION E3223 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-25-generic root=UUID=ab20c954-2973-48a4-a73c-491b5bdeddc2 ro quiet cryptdevice=UUID=abc35d02-7e06-4152-b214-01f17a4740bb:luks-abc35d02-7e06-4152-b214-01f17a4740bb root=/dev/mapper/luks-abc35d02-7e06-4152-b214-01f17a4740bb nosplash RelatedPackageVersions: linux-restricted-modules-5.15.0-25-generic N/A linux-backports-modules-5.15.0-25-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/13/2021 dmi.bios.release: 5.13 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: GeminiLake_YS13GR_V3.0.2 dmi.board.asset.tag: Default string dmi.board.name: YS13GR dmi.board.vendor: MEDION dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 31 dmi.chassis.vendor: MEDION dmi.chassis.version: GD7387P dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrGeminiLake_YS13GR_V3.0.2:bd09/13/2021:br5.13:svnMEDION:pnE3223:pvrELAN:rvnMEDION:rnYS13GR:rvrDefaultstring:cvnMEDION:ct31:cvrGD7387P:skuML-24100630032549: dmi.product.family: Akoya dmi.product.name: E3223 dmi.product.sku: ML-241006 30032549 dmi.product.version: ELAN dmi.sys.vendor: MEDION To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1982479/+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
