New: Thunderbolt dock does not recognize displays connected via DP->HDMI cable
https://bugzilla.kernel.org/show_bug.cgi?id=217674
Bug ID: 217674
Summary: Thunderbolt dock does not recognize displays connected
via DP->HDMI cable
Product: Drivers
Version: 2.5
Hardware: AMD
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: USB
Assignee: [email protected]
Reporter: [email protected]
Regression: NoCreated attachment 304641
--> https://bugzilla.kernel.org/attachment.cgi?id=304641&action=edit
lspci -v output
Summary
-------
When using a thunderbolt dock with 2x DisplayPort connectors, the displayys are not recognized when connected with DP->HDMI cables. Connecting over DP->DP cables work as expected.
Expected Behaviour
------------------
Displays connected to the dock via DP->HDMI cables should be recognized.
Actual Behaviour
----------------
Displays connected to the dock via DP->HDMI cables are not recognized. The following messages are reported in dmesg
``` [68022.156971] thunderbolt 0-2: new device found, vendor=0x6f device=0x12 [68022.156977] thunderbolt 0-2: StarTech.com TB3CDK2DP ...various USB connection messages... [68139.834086] [drm] DMUB HPD callback: link_index=2 [68139.834859] [drm] DPIA AUX failed on 0x0(1), error 3 [68139.836167] [drm] DPIA AUX failed on 0x0(1), error 3 (etc) ```
USB ports and network connection functions as expected.
Steps to Reproduce
------------------
Laptop used is Asus G14 (2023) model GA402NV
Dock is Startech TB3CDK2DP
Reproduced on Linux Kernel 6.4.3 from stable repo
1. Connect laptop to dock over USB-C
2. Connect an external display with DP->HDMI cable
3. Open appropriate display settings to see if external display is recognized.
Signature · 4 lines
You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
[Bug 217674] Thunderbolt dock does not recognize displays connected via DP->HDMI cable
https://bugzilla.kernel.org/show_bug.cgi?id=217674
--- Comment #1 from Andew Marshall ([email protected]) --- Created attachment 304642
--> https://bugzilla.kernel.org/attachment.cgi?id=304642&action=edit
journalctl --dmesg output
Signature · 4 lines
You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
[Bug 217674] Thunderbolt dock does not recognize displays connected via DP->HDMI cable
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=217674
--- Comment #2 from Andew Marshall ([email protected]) --- Created attachment 304643
--> https://bugzilla.kernel.org/attachment.cgi?id=304643&action=edit
kernel config
Signature · 4 lines
You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
[Bug 217674] Thunderbolt dock does not recognize displays connected via DP->HDMI cable
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=217674
Bagas Sanjaya ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #3 from Bagas Sanjaya ([email protected]) --- (In reply to Andew Marshall from comment #0)
Quoted 36 lines
Created attachment 304641 [details]
lspci -v outputSummary
-------When using a thunderbolt dock with 2x DisplayPort connectors, the displayys are not recognized when connected with
DP->HDMIcables. Connecting overDP->DPcables work as expected.Expected Behaviour
------------------Displays connected to the dock via
DP->HDMIcables should be recognized.Actual Behaviour
----------------Displays connected to the dock via
DP->HDMIcables are not recognized. The following messages are reported indmesg``` [68022.156971] thunderbolt 0-2: new device found, vendor=0x6f device=0x12 [68022.156977] thunderbolt 0-2: StarTech.com TB3CDK2DP ...various USB connection messages... [68139.834086] [drm] DMUB HPD callback: link_index=2 [68139.834859] [drm] DPIA AUX failed on 0x0(1), error 3 [68139.836167] [drm] DPIA AUX failed on 0x0(1), error 3 (etc) ```USB ports and network connection functions as expected.
Steps to Reproduce
------------------
Quoted 8 lines
Laptop used is Asus G14 (2023) model GA402NV
Dock is Startech TB3CDK2DP
Reproduced on Linux Kernel 6.4.3 from stable repo1. Connect laptop to dock over USB-C
2. Connect an external display withDP->HDMIcable
3. Open appropriate display settings to see if external display is recognized.
Do you have this issue on v6.1 stable series?
Signature · 4 lines
You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
[Bug 217674] Thunderbolt dock does not recognize displays connected via DP->HDMI cable
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=217674
--- Comment #4 from Andew Marshall ([email protected]) --- (In reply to Bagas Sanjaya from comment #3)
Quoted 2 lines
Do you have this issue on v6.1 stable series?
I tried v6.1 and I get the same issue, although there are no drm errors in the log. Just the one message:
``` [ 214.332514] [drm] DMUB HPD callback: link_index=2 ```
Signature · 4 lines
You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
[Bug 217674] Thunderbolt dock does not recognize displays connected via DP->HDMI cable
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=217674
Mario Limonciello (AMD) ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #5 from Mario Limonciello (AMD) ([email protected]) --- This is very likely a GPU driver or GPU microcode bug. Can you please bring the issue to https://gitlab.freedesktop.org/drm/amd/-/issues
Signature · 4 lines
You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.