drm/i915/dp_mst - System would hang during the boot up.
Bug #1902469 reported by
koba
This bug affects 8 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
koba | ||
Groovy |
Fix Released
|
Undecided
|
koba | ||
linux-oem-5.6 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
koba |
Bug Description
[Impact]
The machine connect with the external monitor on dock(Thunderbolt),
Then system would hang during the boot-up.
[Fix]
The atomic check hooks must look up the encoder to be used with a
connector from the connector's atomic state, and not assume that it's
the connector's current attached encoder. The latter one can change
under the atomic check func, or can be unset yet as in the case of MST
connectors.
[test]
With the patch, The machine connect with the external monitor on dock(Thunderbolt),
Then system boot up successfully.
[Regression Potential]
Low. This patch is also verified by others and is archived in the drmtip.
no longer affects: | focal (Ubuntu) |
summary: |
- If the machine connect with the external monitor on dock(Thunderbolt) - System would hang during the boot up. + drm/i915/dp_mst - System would hang during the boot up. |
no longer affects: | hwe-next/groovy |
description: | updated |
tags: | added: originate-from-1890077 |
affects: | hwe-next → ubuntu |
no longer affects: | hwe-next/focal |
no longer affects: | hwe-next/groovy |
Changed in linux (Ubuntu Focal): | |
status: | New → In Progress |
Changed in linux (Ubuntu Groovy): | |
status: | New → In Progress |
no longer affects: | ubuntu |
no longer affects: | Ubuntu Focal |
no longer affects: | Ubuntu Groovy |
Changed in linux (Ubuntu Focal): | |
assignee: | nobody → koba (kobako) |
Changed in linux (Ubuntu Groovy): | |
assignee: | nobody → koba (kobako) |
Changed in linux-oem-5.6 (Ubuntu Focal): | |
status: | New → In Progress |
Changed in linux-oem-5.6 (Ubuntu Groovy): | |
status: | New → In Progress |
assignee: | nobody → koba (kobako) |
Changed in linux-oem-5.6 (Ubuntu Focal): | |
assignee: | nobody → koba (kobako) |
tags: | added: somerville |
Changed in linux-oem-5.6 (Ubuntu): | |
status: | New → Invalid |
no longer affects: | linux-oem-5.6 (Ubuntu Groovy) |
Changed in linux (Ubuntu Groovy): | |
status: | In Progress → Fix Committed |
Changed in linux-oem-5.6 (Ubuntu Focal): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Focal): | |
status: | In Progress → Invalid |
tags: |
added: verification-done-focal removed: verification-needed-focal |
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This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1902469
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.