Fix Monitor lost after replug WD19TBS to SUT port with VGA/DVI to type-C dongle
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
New
|
Undecided
|
Unassigned | ||
OEM Priority Project |
New
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
koba | ||
Jammy |
New
|
Undecided
|
Unassigned | ||
Kinetic |
Won't Fix
|
Medium
|
koba | ||
Lunar |
Fix Released
|
Medium
|
koba | ||
Mantic |
Fix Released
|
Undecided
|
koba | ||
linux-oem-6.0 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
koba | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned | ||
Lunar |
Invalid
|
Undecided
|
Unassigned | ||
Mantic |
Invalid
|
Undecided
|
Unassigned | ||
linux-oem-6.1 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
koba | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned | ||
Lunar |
Invalid
|
Undecided
|
Unassigned | ||
Mantic |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
Enabling CL1 (Controller Low Power) states during discovery of existing tunnels established by the system firmware can interfere with the operation of those tunnels.
The DisplayPort tunnel establishment timeout of 1.5 seconds can be insufficient for some docking stations, leading to blank displays.
[Fix]
CL1 states are now not enabled during discovery of existing tunnels. The TMU settings also remain unchanged.
The timeout is increased to 3 seconds to allow more time for the DisplayPort connection manager handshake, fixing the issue of displays remaining blank.
[Test Cases]
1. plug docking station on the host
2. bring up the host and get into desktop.
3. flip docking station's cable.
4. check if the external monitor works well
[Where problems could occur]
Low, If the handshake actually requires even more than 3 seconds in some cases, the timeout may still need to be increased further.
[Misc]
Jammy needs more patches to enable the thunderbolt CLx and the SRU will be a huge,
so skip Jammy.
Changed in linux (Ubuntu Kinetic): | |
assignee: | nobody → koba (kobako) |
status: | New → In Progress |
Changed in linux (Ubuntu Lunar): | |
assignee: | nobody → koba (kobako) |
status: | New → In Progress |
Changed in linux (Ubuntu Mantic): | |
assignee: | nobody → koba (kobako) |
status: | New → In Progress |
Changed in linux-oem-6.0 (Ubuntu Jammy): | |
assignee: | nobody → koba (kobako) |
status: | New → In Progress |
Changed in linux-oem-6.1 (Ubuntu Jammy): | |
assignee: | nobody → koba (kobako) |
status: | New → In Progress |
description: | updated |
description: | updated |
tags: | added: oem-priority originate-from-2016873 somerville |
tags: | added: originate-from-2000668 |
Changed in linux-oem-6.1 (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Lunar): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Kinetic): | |
importance: | Undecided → Medium |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Lunar): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Mantic): | |
status: | In Progress → Fix Committed |
tags: | added: originate-from-2008203 |
tags: | added: originate-from-2000680 |
Changed in linux-oem-6.1 (Ubuntu Mantic): | |
status: | New → Invalid |
Changed in linux-oem-6.1 (Ubuntu Lunar): | |
status: | New → Invalid |
Changed in linux-oem-6.1 (Ubuntu Kinetic): | |
status: | New → Invalid |
Changed in linux-oem-6.0 (Ubuntu Mantic): | |
status: | New → Invalid |
Changed in linux-oem-6.0 (Ubuntu Lunar): | |
status: | New → Invalid |
Changed in linux-oem-6.0 (Ubuntu Kinetic): | |
status: | New → Invalid |
Changed in linux-oem-6.0 (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
This bug is awaiting verification that the linux-oem- 6.1/6.1. 0-1015. 15 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- jammy' to 'verification- done-jammy' . If the problem still exists, change the tag 'verification- needed- jammy' to 'verification- failed- jammy'.
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!