Dell (displayport) monitor doesn't work w/ Mac Studio. Any tip?

[rebelo]

Hi there,

I was using an Apple Display and an old Dell 19-inch monitor hooked up on my M3 Macbook Pro and everything worked fine. I use a generic displayport -> USB-C cable, no dongle, comes displayport from the monitor and goes USB-C to the Macbook. Works perfectly. I tried the same setup with a new M4 MacStudio and only the Apple Display works. There's no signal to the Dell monitor. I tried all the USB-C/Thunderbolt ports, nothing. Did anyone face the same issue here? Why this setup only works on Macbooks?

Thanks for any help or insight.

 

[BrianBaughn]

What else is connected to the Mac Studio's rear USB-C ports?

 

[rebelo]

What else is connected to the Mac Studio's rear USB-C ports?

Only the Apple Studio Display, nothing more. I've tested all the USB ports, they're working fine. But there's no signal to the Dell's monitor. If I plug the same monitor to my MBPro, using the same cable, it works.

 

[MarkC426]

I use one of these with a standard (good quality) DP to DP cable, with Dell Ultrasharp to M2 Studio.
I feel a cable to an adapter is better than a cable converting the connection.

USB C to DisplayPort Adapter Thunderbolt 3 Compatible 8K@60Hz DP1.4 4K@60Hz | eBay UK

DP1.4 Support 8K@60Hz UHD Resolutions. Maxonar USB C to DP1.4 adapter supports resolutions 8K (7680×4320) @60Hz, 5K (5120×2880) @ 60Hz, 4K(3840×2160) @60Hz/120Hz/144Hz, 2K(1080P/1440P) @120Hz/240Hz.

www.ebay.co.uk

 

[BrianBaughn]

Sounds like it won't…but does it work if you shutdown, disconnect the Studio Display and start up?

I suppose it doesn't show up in System Information>Hardware>Graphics/Displays.

Does it have HDMI?

 

[pshufd]

Does the monitor have multiple inputs and did you set it to the displayport or the correct displayport?

I've had no problems connecting to USB-C, DisplayPort and HDMI monitors with my Studio to my Dell monitors.

 

[Fishrrman]

If the Dell display has an HDMI port, try an HDMI (Mac) to HDMI (display) cable.

What is the model number of the Dell display?