Ubuntu
linux package

Fix blank display when Thunderbolt monitor is plugged second time

  1. Lunar (23.04)
  2. Bug #2034491
Bug #2034491 reported by Kai-Heng Feng
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HWE Next
New
Undecided
Unassigned
linux (Ubuntu)
Fix Released
Undecided
Unassigned
Jammy
Won't Fix
Undecided
Unassigned
Lunar
Fix Committed
Low
Unassigned
linux-oem-6.1 (Ubuntu)
Invalid
Undecided
Unassigned
Jammy
Fix Released
Low
Unassigned
Lunar
Invalid
Undecided
Unassigned

Bug Description

[Impact]
When a Thunderbolt monitor gets plugged to an AMD laptop for second time, the Thunderbolt monitor remains blank.

[Fix]
Reinitialize TMU and perform proper Time Synchronization Handshake every time.

[Test]
The Thunderbolt monitor still has image after many replugging.

[Where problems could occur]
This change the flow on disabling TMU, which is responsible for time synchronization, so behavior of Thunderbolt docking might be affected. Per my limited test no issue has been observed.

CVE References

Kai-Heng Feng (kaihengfeng)
Changed in linux (Ubuntu):
status: New → Fix Released
Changed in linux (Ubuntu Lunar):
status: New → Confirmed
Changed in linux (Ubuntu Jammy):
status: New → Won't Fix
Changed in linux (Ubuntu Lunar):
importance: Undecided → Low
Changed in linux-oem-6.1 (Ubuntu):
status: New → Invalid
Changed in linux-oem-6.1 (Ubuntu Lunar):
status: New → Invalid
Changed in linux-oem-6.1 (Ubuntu Jammy):
status: New → Confirmed
importance: Undecided → Low
Kai-Heng Feng (kaihengfeng)
tags: added: oem-priority originate-from-2033251 stella
Timo Aaltonen (tjaalton)
Changed in linux-oem-6.1 (Ubuntu Jammy):
status: Confirmed → Fix Committed
Revision history for this message
Timo Aaltonen (tjaalton) wrote :

please verify 1022

tags: added: verification-needed-jammy
Kai-Heng Feng (kaihengfeng)
tags: added: verification-done-jammy
removed: verification-needed-jammy
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-oem-6.1 - 6.1.0-1022.22

---------------
linux-oem-6.1 (6.1.0-1022.22) jammy; urgency=medium

  * jammy/linux-oem-6.1: 6.1.0-1022.22 -proposed tracker (LP: #2034205)

  * amdgpu: Fixes for S0i3 resume on Phoenix (LP: #2033654)
    - drm/amd/pm: skip the RLC stop when S0i3 suspend for SMU v13.0.4/11
    - drm/amdgpu: skip fence GFX interrupts disable/enable for S0ix
    - drm/amd: flush any delayed gfxoff on suspend entry

  * CVE-2023-20588
    - x86/bugs: Increase the x86 bugs vector size to two u32s
    - x86/CPU/AMD: Do not leak quotient data after a division by 0
    - x86/CPU/AMD: Fix the DIV(0) initial fix attempt

  * CVE-2023-4569
    - netfilter: nf_tables: deactivate catchall elements in next generation

  * stacked overlay file system mounts that have chroot() called against them
    appear to be getting locked (by the kernel most likely?) (LP: #2016398)
    - SAUCE: overlayfs: fix reference count mismatch

  * Fix blank display when Thunderbolt monitor is plugged second time
    (LP: #2034491)
    - thunderbolt: Fix Thunderbolt 3 display flickering issue on 2nd hot plug
      onwards
    - thunderbolt: Fix a backport error for display flickering issue

  * Enable D3cold at s2idle for Intel DG2 GPU (LP: #2033452)
    - drm/i915/dgfx: Enable d3cold at s2idle

  * Fix numerous AER related issues (LP: #2033025)
    - SAUCE: PCI/AER: Disable AER service during suspend, again
    - SAUCE: PCI/DPC: Disable DPC service during suspend, again

  * Fix ACPI TAD on some Intel based systems (LP: #2032767)
    - ACPI: TAD: Install SystemCMOS address space handler for ACPI000E

  * Fix panel brightness issues on HP laptops (LP: #2032704)
    - ACPI: video: Put ACPI video and its child devices into D0 on boot

  * Resync CI Runner Configuration (LP: #2024199)
    - [CI] resync ci configuration

 -- Timo Aaltonen <email address hidden> Wed, 06 Sep 2023 10:02:26 +0300

Changed in linux-oem-6.1 (Ubuntu Jammy):
status: Fix Committed → Fix Released
Roxana Nicolescu (roxanan)
Changed in linux (Ubuntu Lunar):
status: Confirmed → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux/6.2.0-36.37 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-lunar-linux' to 'verification-done-lunar-linux'. If the problem still exists, change the tag 'verification-needed-lunar-linux' to 'verification-failed-lunar-linux'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-lunar-linux-v2 verification-needed-lunar-linux
Kai-Heng Feng (kaihengfeng)
tags: added: verification-done-lunar-linux
removed: verification-needed-lunar-linux
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