Solution that works for me
Hi guys. Just thought I'd share my findings.
I've had the same issue since upgrading to Sequoia 15.5, but every once in a while I happened to activate both screens. For the last couple of weeks I only managed to get one..
Then, a few days ago I disconected the dock and macbook for a couple of hours and also disconnected the dock from the power supply. Then when I reconnected everything I got two screens. Since then it's worked just fine. I have both screens activated whenever I connect again.
A colleague of mine experienced the same issue as the rest of us, but when I suggested to disconnect everything (including power) for a few minutes it worked.
This suggests to me that it has something to do with the HDMI handshake..
Either way, just a suggestion for you guys. It's worked for me a couple of times now,
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