This bug was fixed in the package linux-oem-5.14 - 5.14.0-1022.24
---------------
linux-oem-5.14 (5.14.0-1022.24) focal; urgency=medium
* focal/linux-oem-5.14: 5.14.0-1022.24 -proposed tracker (LP:
#1959585)
* Got black screen when resume from s2idle with AMD dGPU (LP: #1955790)
- drm/amdgpu: don't do resets on APUs which don't support it
* CVE-2022-0330
- drm/i915: Flush TLBs before releasing backing store
* CVE-2022-22942
- SAUCE: drm/vmwgfx: Fix stale file descriptors on failed usercopy
* CVE-2022-23222
- bpf: Don't promote bogus looking registers after null check.
- bpf, selftests: Add verifier test for mem_or_null register with offset.
* CVE-2022-24122
- ucount: Make get_ucount a safe get_user replacement
* The display output on type-c hub doesn't work on ADL platform (LP: #1959061)
- SAUCE: drm/i915/adlp: Fix TypeC PHY-ready status readout
-- Timo Aaltonen <[email protected]> Mon, 31 Jan 2022
17:45:20 +0200
** Changed in: linux-oem-5.14 (Ubuntu Focal)
Status: In Progress => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-0330
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-22942
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-23222
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-24122
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https://bugs.launchpad.net/bugs/1959061
Title:
The display output on type-c hub doesn't work on ADL platform
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.14 source package in Focal:
Fix Released
Status in linux source package in Jammy:
In Progress
Status in linux-oem-5.14 source package in Jammy:
Invalid
Bug description:
[Impact]
The display output(DP/HDMI) on the USB type-c hub doesn't work. No display
output device could be found after the monitor is plugged into the hub.
[Fix]
Intel provide a new patch to fix this issue on ADL platforms.
[Test]
Verified on ADL platform with different type-c hubs, the display output works.
[Where problems could occur]
The TCSS_DDI_STATUS register is indexed by tc_port not by the FIA port index.
So, this patch is more like a fix and only affect ADL platforms. And as the
commit log describes, the value is wrong on TC#3/4 ports, so it won't affect
the origin working ports.
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