Yeah, my current LG monitor had some bugs with DP 1.4 that were resolved through a firmware update. It was a replacement for a different LG monitor that falsely advertised 60W USB PD "laptop charging", when it could only actually deliver 15W. (Which is not enough to charge most laptops.)
(I think the current one also has some false advertising, because they claim it supports a 75hz refresh rate, but I've never been able to get more than 60hz out of it. Before the DP 1.4 firmware fix, it was stuck at 30hz sometimes.)
(I think the current one also has some false advertising, because they claim it supports a 75hz refresh rate, but I've never been able to get more than 60hz out of it. Before the DP 1.4 firmware fix, it was stuck at 30hz sometimes.)