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Dell 3007WFP + CAC-1510 Resolution Issues

Updated on 25-04-2025 in USB Type C
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4 on 20-04-2025

Hello, I need a bit of help. I recently bought a Dell 3007WFP monitor for my Mac Studio.
While it works, I do not like the fact that it is displaying at a poor
resolution at 1280×800 instead of the it’s suggested resolution of 2560×1600. Whenever I would select a resolution higher than 1280×800 then the monitor would either go black or glitch out. However, just the other day I bought a Club3D CAC-1510 DVI to usb c adapter to fix the quality issue, but then the adapter came and I plugged it in and I ended up with the same results as before, therefore I was wondering if there is a step I’m missing or something? My DVI cables are indeed dual link, and the adapter I bought is indeed dual link too. I have the latest macOS version with 15 Sequoia. But yeah, do you guys have any suggestions or pieces of advice that could help get my monitor at a high resolution as intended? Please and thank you, I appreciate all the help.

Miguel.

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joevt 0 on 21-04-2025

Go to the Displays preferences panel.
Click “Advanced…”
Select “Show resolutions as list”. Click “Done”.
Select “Show all resolutions”.
Do you see a 2560×1600 mode now?

If not, then try using SwitchResX or BetterDisplay to switch resolutions?

As a last resort, you might need to delete some display preferences files:
https://gist.github.com/GetVladimir/c89a26df1806001543bef4c8d90cc2f8?permalink_comment_id=4394783

Once you have 2560×1600 working, have a look at this thread:
https://insights.club-3d.com/thread/flickering-problem-with-cac-1510-a-and-apple-cinema-display-30-on-mac-mini-m1/

 

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novacinema15 0 on 22-04-2025

This is the result I get every time I click 2560×1600 as a resolution even through SwitchResX

I’m hoping it’s the cable I have, not the adapter or my Mac Studio, as I recently ordered another DVI-D cable.

 

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joevt 0 on 22-04-2025

Use SwitchResX to get the EDID from the display. It should have a timing for 2560×1600 60Hz.

In the SwitchResX current resolutions list, double click the 2560×1600 mode and verify that the timing parameters (pixel clock, horizontal and vertical sync front/back porch, pulse width) match those in the EDID.

Test the display with a different computer?

Test the adapter with a different computer?

 

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Wiktor 0 on 25-04-2025

You can try setting refresh rate a bit lower, to 55, 50Hz. Ofc cable might be the problem

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