based on previous comment no longer testing with i915.enable_psr=0, but here's what i've narrowed it down to:
v5.13.19: works v5.14.0rc2: black screen looks like the v5.14.0rc1 build failed so can't test that? -- 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/1965968 Title: post jammy update, black/flickering screen on boot Status in linux package in Ubuntu: Confirmed Bug description: After initial jammy upgrade things were working fine, but after a recent update the machine boots to a blank screen. There are occasional purplish flickers that seem to correspond with keypresses, but even blindly typing the encrypted disk password doesn't appear to advance the boot process to gdm. Plugging in an external monitor does fix the issue and allow boot to proceed, but obviously doesn't help if not near an external monitor. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: plymouth 0.9.5+git20211018-1ubuntu3 ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27 Uname: Linux 5.15.0-23-generic x86_64 ApportVersion: 2.20.11-0ubuntu79 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: unknown CurrentDesktop: GNOME Date: Tue Mar 22 09:22:26 2022 DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth InstallationDate: Installed on 2019-08-17 (948 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190305.1) MachineType: Dell Inc. XPS 15 9575 ProcCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-23-generic root=UUID=83cade14-7628-437d-8517-36ad82f00d20 ro quiet splash vt.handoff=7 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-23-generic root=UUID=83cade14-7628-437d-8517-36ad82f00d20 ro quiet splash vt.handoff=7 SourcePackage: plymouth TextPlymouth: /usr/share/plymouth/themes/ubuntu-gnome-text/ubuntu-gnome-text.plymouth UpgradeStatus: Upgraded to jammy on 2022-03-18 (3 days ago) dmi.bios.date: 03/25/2021 dmi.bios.release: 1.15 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.15.1 dmi.board.name: 0N338G dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 31 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.15.1:bd03/25/2021:br1.15:svnDellInc.:pnXPS159575:pvr:rvnDellInc.:rn0N338G:rvrA00:cvnDellInc.:ct31:cvr:sku080D: dmi.product.family: XPS dmi.product.name: XPS 15 9575 dmi.product.sku: 080D dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+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
