Public bug reported:
After upgrading to 6.11.0-29-generic the thunderbolt display didn't work
anymore.
I expected to start the laptop (as always) and see the login screens of
gnome on my external display.
Instead the external display did not connect (and went into suspend).
This only affected the display-part of thunderbolt, the (integrated) usb
hub was working with all connected devices.
I wasn't able to figure the issue out using dmesg since it seemed the
display stopped announcing itself on thunderbolt because i wasn't able
to find any errors about the display. But i am also not firm in
debugging display issues on this level so take it with a grain of salt.
I fixed this for now downgrading to 6.11.0-28 using the grub menu.
Let me know if i can lend a helping hand.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.11.0-28.28~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-28-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.7
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Jul 10 11:38:14 2025
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Navi 33 [Radeon RX
7700S/7600/7600S/7600M XT/PRO W7600] [1002:7480] (rev c1) (prog-if 00 [VGA
controller])
Subsystem: Framework Computer Inc. Navi 33 [Radeon RX 7700S/7600/7600S/7600M
XT/PRO W7600] [f111:0007]
Advanced Micro Devices, Inc. [AMD/ATI] Phoenix1 [1002:15bf] (rev c2) (prog-if
00 [VGA controller])
Subsystem: Framework Computer Inc. Phoenix1 [f111:0005]
InstallationDate: Installed on 2025-06-04 (36 days ago)
InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215)
MachineType: Framework Laptop 16 (AMD Ryzen 7040 Series)
ProcEnviron:
LANG=de_DE.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-ghostty
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.11.0-28-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash amdgpu.dcdebugmask=0x10
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/13/2024
dmi.bios.release: 3.5
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 03.05
dmi.board.asset.tag: *
dmi.board.name: FRANMZCP07
dmi.board.vendor: Framework
dmi.board.version: A7
dmi.chassis.asset.tag: FRAGACCPAG50640044
dmi.chassis.type: 10
dmi.chassis.vendor: Framework
dmi.chassis.version: AG
dmi.modalias:
dmi:bvnINSYDECorp.:bvr03.05:bd11/13/2024:br3.5:svnFramework:pnLaptop16(AMDRyzen7040Series):pvrAG:rvnFramework:rnFRANMZCP07:rvrA7:cvnFramework:ct10:cvrAG:skuFRAGACCP0G:
dmi.product.family: 16in Laptop
dmi.product.name: Laptop 16 (AMD Ryzen 7040 Series)
dmi.product.sku: FRAGACCP0G
dmi.product.version: AG
dmi.sys.vendor: Framework
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.122-1~ubuntu0.24.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 24.2.8-1ubuntu1~24.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble ubuntu wayland-session
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https://bugs.launchpad.net/bugs/2116315
Title:
External thunderbolt display didn't work after upgrade to
6.11.0-29-generic
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