** Description changed: + [Impact] + + OEM-6.1 kernel is missing support for minimum page size of 64k on DG2 + (gfx12.5). Mesa 23.2 started using that, so it broke initializing the + gpu on boot, causing a blank screen with no GDM running (with wayland, + and fallback to X failed too). + + [Fix] + + Revert the commit that allows using 64k page size, since that's what the + current version in jammy-updates is using. OEM-6.1 kernel is going away, + no need to patch that anymore. No other kernel is affected, >6.2 works + fine and thus this revert is not necessary in mantic or noble. + + [Test case] + + Install the update, boot up a machine with DG2 (iGPU or dGPU, doesn't + matter). The login screen should appear. + + [Where things could go wrong] + Hard to see how this could regress anything, as it just restores the limits for intel gfx12.5 as they were in the current mesa version in jammy. + + + --- + [Summary] After installed proposed package libegl-mesa0, reboot system. GUI crashed but still able to access system by ssh. [Steps to reproduce] 1. Boot into OS 2. sudo apt update 3. sudo apt upgrade 4. After upgrade process finished, reboot system. 5. GUI crashed. [Expected result] GUI displayed normally [Actual result] GUI crashed [Failure rate] 100% Tester comments --------------- if we don't upgrade libegl-mesa0, GUI will be fine. [Additional information] CID: 202303-31429 SKU: MYBY-DVT2-C5 Image: dell-bto-jammy-jellyfish-muk-X105-20231026-26_A02.iso system-manufacturer: Dell Inc. system-product-name: Precision 5680 CPU: Intel(R) Core(TM) i7-13700H kernel-version: 6.1.0-1028-oem [Stage] Issue reported and root cause of crash found.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/2051068 Title: GUI crashed after installed proposed package libegl-mesa0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem-6.1/+bug/2051068/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
