This bug was fixed in the package linux-oem-5.14 - 5.14.0-1013.13
---------------
linux-oem-5.14 (5.14.0-1013.13) focal; urgency=medium
* focal/linux-oem-5.14: 5.14.0-1013.13 -proposed tracker (LP:
#1955464)
* devices on thunderbolt dock are not recognized on adl-p platform
(LP: #1955016)
- SAUCE: thunderbolt: Runtime PM activate both ends of the device link
- SAUCE: thunderbolt: Tear down existing tunnels when resuming from
hibernate
- SAUCE: thunderbolt: Runtime resume USB4 port when retimers are scanned
- SAUCE: thunderbolt: Do not allow subtracting more NFC credits than
configured
- SAUCE: thunderbolt: Do not program path HopIDs for USB4 routers
- SAUCE: thunderbolt: Add debug logging of DisplayPort resource allocation
-- Chia-Lin Kao (AceLan) <acelan....@canonical.com> Tue, 21 Dec 2021
16:59:25 +0800
** Changed in: linux-oem-5.14 (Ubuntu Focal)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1953208
Title:
Fix bogus HDMI audio interface
Status in HWE Next:
New
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Won't Fix
Status in linux-oem-5.14 source package in Focal:
Fix Released
Bug description:
[Impact]
Bogus HDMI audio can be selected as output, without any HDMI monitor
connected.
[Fix]
Consider 0 SAD as invalid ELD - no SAD means no audio.
[Test]
With the patch applied, no bogus HDMI audio can be found in GNOME's
setting app.
[Where problems could occur]
Basically none. No SAD means no PCM - so it has never worked before.
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