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ohnoitsthomas

LG Ultrafine 5k monitor...with PC!

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Posted · Original PosterOP

Hey all! I am trying to get my LG Ultrafine monitor to work with a new build and having some trouble and looking for help! Using a Ryzen 5 3600, ASRock X570 Phantom Gaming ITX/TB3, Geforce GTX 1650 super....running Pop! OS.  

 

So I bought this ASRock mb simply because it had the ability to convert DP 1.4 into TB3 so I can use it with this monitor, but it doesn't seem to want to work! I have tested the build on both a standard HDMI display straight from the card and my wife's 4k LG with USB C in, which it works on, but it just won't seem to wake up the Ultrafine using the same config (dp in -> tb3 out). Any ideas? 

 

IMG_2231.jpeg

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My guess is Pop OS and Thunderbolt 3 configuration not being correct. What does bolt or tbt show (two most known CLI tools for TB3, does either detect the display)? Which authorization mode do you use?


Skynet: MacBook Pro Late 2016 Space Gray | i7-6820HQ 2.7 GHz | 16 GB LPDDR3 | Radeon Pro 455 2048 MB | 512 GB NVMe SSD | 15" 2880x1800

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Posted · Original PosterOP
12 minutes ago, jj9987 said:

My guess is Pop OS and Thunderbolt 3 configuration not being correct. What does bolt or tbt show (two most known CLI tools for TB3, does either detect the display)? Which authorization mode do you use?

Ok, so here is the trick, at my office (where the monitor in question is) I dont have another monitor available to trouble shoot this with. When I head back home I will take a look. 

 

So you think I probably just need to change my configuration with my OS?

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Posted · Original PosterOP
34 minutes ago, jj9987 said:

My guess is Pop OS and Thunderbolt 3 configuration not being correct. What does bolt or tbt show (two most known CLI tools for TB3, does either detect the display)? Which authorization mode do you use?

Ok! So I forgot we had an old tv in the bathroom closet that I can use to check this with! I plugged in the the tv first then connected my LG display and everything popped on and the OS is recognizing it! I have no idea why this worked, but it did! A little concerned a reset is just going to bring me back to square one...anything I should check while I have it running?

IMG_2232.jpeg

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