Hi Ian,
We sometime get compatibility issue form different external device and
even the HDMI cord(e.g. LP: #1890772).
To check if it's a external device issue, could you please help to do some test:
1. Will BIOS shows on external HDMI monitor if you plugged HDMI before booting
up your machine?
2. If lower resolution make you HDMI monitor light up?
- I saw you make it light up after manually xrander command, how if you
change the resolution up and down? (I'm wondering if it related to LP: #1890772)
** Also affects: oem-priority
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1914670
Title:
No HDMI detection
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