#1
LG
40U990A
4 positive 0 neutral 2 negative
Based on 6 Reddit mentions
$1799.99
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Reddit mentions
Original Reddit posts and comments behind this analysis.
MacOS 26.1 does not display over Thunderbolt on LG Ultrawide displays. Partial Temp fix implemented.
My work Macbook Pro M2 Pro on macOS 26.3.1 refuses to detect/connect to my new LG 40U990A-W Thunderbolt 5 monitor no matter what I do. The display itself is on the newest firmware, the only quirk I've noticed is that I cannot go to DP 1.2 - only DP 2.1 or DP 1.4. I understand that the M2 Pro does no
...RayTheWildcat in r/MacOS
March 6, 2026 1:00 PM
1
