Hi Justus, Thanks for bisecting! It really helps. Looking at what you found:
ubuntu-noble 648dd7aa1f69e1ea8eb6fdb8515e86945df2e424 commit b49420d6a1aeb399e5b107fc6eb8584d0860fbd7 Author: Alex Deucher <alexander.deuc...@amd.com> Date: Wed Aug 21 15:11:35 2024 -0400 Subject: video/aperture: optionally match the device in sysfb_disable() Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49420d6a1aeb399e5b107fc6eb8584d0860fbd7 I then looked for commits with that Fixes: tag, and came across this: commit ad604f0a4c040dcb8faf44dc72db25e457c28076 Author: Thomas Zimmermann <tzimmerm...@suse.de> Date: Tue Sep 24 10:41:03 2024 +0200 Subject: firmware/sysfb: Disable sysfb for firmware buffers with unknown parent Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad604f0a4c040dcb8faf44dc72db25e457c28076 Looking at https://lore.kernel.org/dri-devel/sj1pr11mb6129efb8ce63d1ef6d932f94b9...@sj1pr11mb6129.namprd11.prod.outlook.com/ https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12160 it mentions phantom displays. I think we have a good lead on this one. ubuntu-noble$ git log --grep "firmware/sysfb: Disable sysfb for firmware buffers with unknown parent" origin/master-next commit a03ade11374b8a4c3a62f6a2ceda679858e8e8ee Author: Thomas Zimmermann <tzimmerm...@suse.de> Date: Tue Sep 24 10:41:03 2024 +0200 firmware/sysfb: Disable sysfb for firmware buffers with unknown parent $ git describe --contains a03ade11374b8a4c3a62f6a2ceda679858e8e8ee fatal: cannot describe 'a03ade11374b8a4c3a62f6a2ceda679858e8e8ee' ubuntu-oracular$ git log --grep "firmware/sysfb: Disable sysfb for firmware buffers with unknown parent" origin/maste r-next commit cd007b66fa1c48f5bbfade6c50079e4423505512 Author: Thomas Zimmermann <tzimmerm...@suse.de> Date: Tue Sep 24 10:41:03 2024 +0200 firmware/sysfb: Disable sysfb for firmware buffers with unknown parent $ git describe --contains cd007b66fa1c48f5bbfade6c50079e4423505512 fatal: cannot describe 'cd007b66fa1c48f5bbfade6c50079e4423505512' They are applied to ubuntu-noble and ubuntu-oracular git trees, but not tagged yet. Possibly available in next SRU cycle? In the meantime, how about I make you a test kernel you can try with the fix to double check we actually found the right one. Let me get some builds going, and I'll write back when they are ready. Thanks, Matthew ** Bug watch added: gitlab.freedesktop.org/drm/i915/kernel/-/issues #12160 https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12160 -- 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/2084046 Title: [i915] Phantom "Unknown" display detected on Intel Meteor Lake Status in linux package in Ubuntu: Confirmed Status in linux source package in Noble: Confirmed Status in linux source package in Oracular: Confirmed Bug description: Settings is reporting a second display ("Unknown") is connected. This is on a laptop which has nothing plugged in and only an Intel GPU. It appears the problem is once again (like bug 2060268) SimpleDRM: Node: /dev/dri/card0 ├───Driver: simpledrm (DRM driver for simple-framebuffer platform devices) version 1.0.0 (0) -- Node: /dev/dri/card1 ├───Driver: i915 (Intel Graphics) version 1.6.0 (0) Linux version 6.11.0-8-generic (buildd@lcy02-amd64-042) (x86_64-linux- gnu-gcc-14 (Ubuntu 14.2.0-4ubuntu2) 14.2.0, GNU ld (GNU Binutils for Ubuntu) 2.43.1) #8-Ubuntu SMP PREEMPT_DYNAMIC Mon Sep 16 13:41:20 UTC 2024 (Ubuntu 6.11.0-8.8-generic 6.11.0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2084046/+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
