Public bug reported:

[Impact]
Some HDMI and DP doesn't count as external monitor on ICL MST.

[Fix]
Fix external port MST check on Ice Lake.

[Test]
DP and HDMI ports can only mirror display.
After applying this patch bot DP and HDMI ports can drive its own external 
display.

[Regression Potential]
Low. This fix targets Gen 11 and Gen 12 Intel graphics, older systems are 
unaffected.

** Affects: hwe-next
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: oem-priority originate-from-1853415 somerville

** Tags added: oem-priority originate-from-1853415 somerville

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https://bugs.launchpad.net/bugs/1854432

Title:
  Fix MST support on Ice Lake

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  New

Bug description:
  [Impact]
  Some HDMI and DP doesn't count as external monitor on ICL MST.

  [Fix]
  Fix external port MST check on Ice Lake.

  [Test]
  DP and HDMI ports can only mirror display.
  After applying this patch bot DP and HDMI ports can drive its own external 
display.

  [Regression Potential]
  Low. This fix targets Gen 11 and Gen 12 Intel graphics, older systems are 
unaffected.

To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1854432/+subscriptions

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