X11 forwarding fails regardless using "ssh -X" or other with authentication errors

[Thomas Schweikle]

X11 forwarding fails even if synchronizing cookies by other means. It even fails if any security is turned off an no ssh forwarding is used.

Error message: X11 connection rejected because of wrong authentication.

ssh is configured to use localhost and forwarding is enabled.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: x11-common 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 5.15.0-41.44-generic 5.15.39
Uname: Linux 5.15.0-41-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
BootLog:

CasperMD5CheckResult: unknown
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: XFCE
Date: Wed Jul 6 21:16:16 2022
Dependencies: lsb-base 11.1.0ubuntu4
DistUpgraded: 2019-04-27 16:35:05,834 DEBUG /openCache(), new cache size 93064
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] 3rd Gen Core processor Graphics Controller [1025:0681]
InstallationDate: Installed on 2011-10-19 (3913 days ago)
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: Acer TravelMate P643-M
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-41-generic root=/dev/mapper/vg-root ro elevator=deadline splash acpi=force reboot=bios crashkernel=384M-2G:128M,2G-:256M vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to jammy on 2019-04-27 (1166 days ago)
dmi.bios.date: 10/21/2013
dmi.bios.release: 2.15
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: V2.15
dmi.board.asset.tag: No Asset Tag
dmi.board.name: TravelMate P643-M
dmi.board.vendor: Acer
dmi.board.version: V2.15
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Acer
dmi.chassis.version: V2.15
dmi.ec.firmware.release: 1.19
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.15:bd10/21/2013:br2.15:efr1.19:svnAcer:pnTravelMateP643-M:pvrV2.15:rvnAcer:rnTravelMateP643-M:rvrV2.15:cvnAcer:ct9:cvrV2.15:skuTravelMateP643-M_0681_2.15:
dmi.product.family: TravelMate P643-M
dmi.product.name: TravelMate P643-M
dmi.product.sku: TravelMate P643-M_0681_2.15
dmi.product.version: V2.15
dmi.sys.vendor: Acer
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.110-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.1-1ubuntu2.1
version.libgl1-mesa-glx: libgl1-mesa-glx 22.0.1-1ubuntu2.1
version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.6-2build1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately, we cannot work on this bug because your description didn't include enough information. You may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem.

We have instructions on debugging some types of problems at http://wiki.ubuntu.com/DebuggingProcedures.

At a minimum, we need:

1. The specific steps or actions you took that caused you to encounter the problem.
2. The behavior you expected.
3. The behavior you actually encountered (in as much detail as possible).

Please also ensure that you include the release and flavour of Ubuntu that you are using.

Thank you!

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]