Viewsonic hdmi not working mac pro#
Viewsonic hdmi not working mac mac#

After the M1 MacBook Air goes to sleep and the monitor goes on standby, it takes a while for the monitor to wake up. This way the M1 MacBook Air can detect the monitor, but the signal is 4K only (of course), and the connection from the M1 MacBook Air to the monitor is flaky. The only way I can connect to this display from the M1 MacBook is via this display’s HDMI port, using a USB3-to-HDMI adapter made by HyperDrive and an HDMI cable.

Viewsonic hdmi not working mac pro#

The Intel-based 2020 MacBook Pro can detect the same monitor when connected to its USB3 port via the same TB3 cable and can send 4K signal to it. Again, the M1 MacBook Air doesn’t even detect the monitor when connected to the monitor’s USB3 port via a Thunderbolt3 cable (TB3 cable). This display also has a USB3 input that uses USB3 alternate mode with DP1.2 (4K resolution). My 2020 10th generation Intel 13” MacBook Pro detects this display and sends a 5K video signal to it. This display is not detected by the M1 MacBook Air as though it’s not even connected. It also works with the 2020 10th generation Intel CPU Macs (MacBook Pro and MacBook Air). It works with all Intel-based 20 Macs that use the Titan Ridge TB3 controller and discrete graphics adapters. I have a no-brand 5K monitor that uses a DisplayPort 1.4 connector to receive 5K signal from the Mac, using a USB3-to-DP1.4 cable (capable of up to 8K at 30Hz or 5K at 60Hz). A display that is sleeping on its own cannot respond to the Mac's query, and will stay dark. This can allow the display to enter its own sleep mode, on top of the Mac's not sending it data.

Some displays include their own private 'sleep' settings for the display alone. Changing those may make your display more responsive. 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. They need to pay attention to the port you are actually using, or they will miss the query. Modern Displays with multiple ports are sometimes busy scanning the other ports, looking for an input, and miss the query from the Mac. So try doing some of those things and see if the display comes alive.

on invoking Option-(Detect Display) button in Displays preferences (from another display, such as the built-in).

at insertion of the Mac-end of the display-cable, provided everything on that cable is ready-to-go.

This query is only sent at certain times: Otherwise, the display will not be shown as present, and no data will be sent to the display.

Viewsonic hdmi not working mac mac#

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.