LG 40WP95CP Troubleshooting

Soldato
Joined
17 Jun 2010
Posts
12,482
Location
London
Just got this monitor for when I’m working from home. It’s a 5K2K 21:9 ultrawide, it has Thunderbolt 4 ports.

My work laptop is a Lenovo Thinkpad X13 Yoga Gen 2… which has Thunderbolt 4 ports. I’m sure I read on a blurb for the laptop it can run 3 4K displays.

When I connect the monitor, the laptop starts having a fit. I can see the display in Display Settings as screen 2 but if I click on it, I just get booted back to display one or the settings just dies/closes. It shows up as LG Ultrawide so it’s recognised and the monitor pipes up that it’s connected via Thunderbolt but… nada. Black screen, flickering on the laptop. Unplug and all ok.

I’ve tried powering the laptop independently, restarting, no joy. Hoping I won’t have to return it for something lower res (don’t want OLED for the text fringing) and it’s just an obvious thing I’m missing, but equally I might have missed something obvious that means it can‘t hack it. If it’s a driver thing I worry IT support won’t be much help as I don‘t have admin access to go installing much myself.

Any ideas?
 
Troubleshooting myself so it looks like I’m not stupid. I’ve ordered a Displayport 1.4 to USB-C cable to see if it will output 5K@60fps that way, on the assumption for whatever reason it’s not treating the USB-C to USB-C like a proper TB4 connection and hence it can’t cope with the load.
 
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It worked! Might have to see if a decent TB cable does power + display but I can live with two cables for now.

100% scaling is lol - can have literally everything I need visible on one screen for work. Anyway, this thread can now slide into oblivion.
 
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