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New Dell S3221QS monitor never gets signal from my Macbook Pro in Ventura; only standby in monitor only. No cable works from MBP to monitor (HDMIx HDMI) nor Display cord x usb. Many weeks of this problem.
MacBook Pro 15″, macOS 13.5
Dell S3221QS
3440 by 2180 "4K" display
Interfaces
what model-year MacBook Pro 15-In? I don't see any 15-in that could run Ventura with HDMI port, so how are you making the connection?
EXACTLY what cables, adapters and docks are being used?
Dell S3221QS
3440 by 2180 "4K" display
Interfaces
what model-year MacBook Pro 15-In? I don't see any 15-in that could run Ventura with HDMI port, so how are you making the connection?
EXACTLY what cables, adapters and docks are being used?
Grant, I have a 1TB SDD 2015 MBP. an Apple-made computer. I have a HDMI cable (from Amazon a week ago) that ports to this MBP x Dell port. I also have a Display port also tried, running from Dell monitor to USB on MBP. I have run the OS to Ventura 13.5, like thousands of other users.
in checking my sources, one of:
MacBook Pro 15-in model with a built-in HDMI port -OR-
running MacOS 13 Ventura ...
... does not appear to be completely accurate.
¿Is it possible your 2015 MacBook Pro is running MacOS 12, Monterey?
¿or are you ALSO using an adapter or Dock to provide an HDMI output from a different model MacBook Pro that does NOT have a built-in HDMI port?
My 2014-2015 Macbook Pro: I bought it in 2015, April. new I have a new HDMI cable from Amazon just recently. It is connected from my new Dell S3221QS monitor x my MBP, both ends HDMI males.
I have updated the MBP from Monterey to Ventura, and went through about 4 updates to 13.5. I know this MBP is not allowed in Apple, but there are thousands of other users who are doing Ventura also, via OpenCourse via GIT and others, some even on Youtube. These are MBP's, Mac Pro's, many even older than mine. You can find important literature easily (Youtube etc)
Readers are trying to find out whether you have a built-in HDMI port, whether that port is run by a graphics chip capable of driving a large HDMI display directly, and whether any other equipment is involved. No one cares about your running OpenCore. If Apple cared enough about that, they could try to stop the use of OpenCore, but its use is mostly limited to s all number of hobbyists, and no one is making money off it.
so the exact model shown:
menu > about this Mac ...
... is vital in determining which graphics chip(s) your Mac is using.
The Mac uses a system that reminds me of “Plug and play” to determine what display is connected, and what its capabilities are.
To get a Mac display to become active, you need the Mac to query the display, and the display to answer with its name and capabilities. Otherwise, the display will not be shown as present, and no data will be sent to the display. "No signal detected" is generated by the DISPLAY, not by the Mac.
This query is only sent at certain times:
• at startup
• at wake from sleep — so momentarily sleeping and waking your Mac may work
• at insertion of the Mac-end of the display-cable, provided everything on that cable is ready-to-go
• hold the Option key while you click on the (Detect Display) button that will appear in Displays preferences (from another display)
so try doing some of those things and see if the display comes alive.
Modern Displays with multiple ports are sometimes busy scanning the other ports, looking for an input, and miss the query from the Mac. They need to pay attention to the port you are actually using, or they will miss the query.
Some displays have On-Screen Display settings that can be used to tell the display a computer is attached on a certain port, or a certain port should be highest priority. Changing those may make your display more responsive.
Some displays include their own private "sleep" settings for the display alone. This can allow the display to enter its own sleep mode, on top of the Mac's not sending it data. A display that is sleeping on its own cannot respond to the Mac's query, and will stay dark.
I am really glad you got a cable from Amazon last week that could connect your computer. could you please provide a Link to the ad on Amazon?
IVANKY
4K HDMI Cable 6.6 ft, High Speed 18Gbps HDMI 2.0 Cable, 4K HDR, 3D,
2160P, 1080P, Ethernet - Braided HDMI Cord 32AWG, Audio Return(ARC)
Compatible...
Size:6.6 feet
Color:Grey
My new external screen never gets any video signal from my Macbook Pro, goes "Standby" in 4 minutes
