![]() It has worked flawlessly on HDMI at 3840x1080 HDR This approach/work around worked for me a number of times. The most consistent way I have had the CRG90 work with the M1 is to have another monitor hooked up to HDMI (or the CRG90 itself) and when it detects the CRG90 over DP as an extended desktop screen, increase the resolution on the HDMI monitor and then unplug the HDMI and the CRG90 remains as my primary screen until I reboot (it worked while waking from sleep). But the M1 and CRG90 do not negotiate a connection properly or with consistently and for me usually presents with a blank screen, no backlight, no rear lighting. I can confirm that I KNOW and have had the M1 Mac mini successfully display 5120 x 1440 SDR with my CRG90 using a USB-C to DispalyPort cable (2 different cables). I have installed ScreenResX to help see what the CRG90 and M1 negotiate as possible resolutions/frequencies and to select some that the M1 does not present in Display properties. I have seen other suggestions that setting your monitor DP level to 1.2 can help, although it made no difference to me. The Caldigit dock is acting as a TB3 to DP converter. Were you able to push the monitor to 5120x1440 using SwitchResX or similar display adjustment Ron, sorry, I forgot that you had already stated your connection configuration. I take it you tried, in display settings, to click the scaled option while holding the option key on the keyboard? So, I need to find someone using higher-speed USB-C TB3 cable to Display Port definitively saying that this will not work with the M1. I have not tested it, but others have recommended that this could be a solution There is a high-speed TB3 to Display Port cable made by Moshi that may work. Using a High-Speed TB3 cable which is recommended for these monitors.ġ6" MBP -> TB3 High Speed Cable -> Caldigit Dock -> DisplayPort Cable -> C49RG90 Monitor I am not using a USB-C to display port cable. I am going to try order different DP 1.4 cables to see if that fixes the problem. Currently, I have to unplug and replug the USB-C for the monitor to connect. It might just be a problem with the DisplayPort drivers or Big Sur. I am still having a problem where the system won’t detect the monitor when waking up from sleep. That is when I was finally able to get 5120 x 1440 (low resolution). I had to change the refresh rate setting on my monitor from 120hz to 60hz and turn off Freesync. I was able to connect the monitor with the new USB-C cable, however, max resolution I was able to get was 3840 x 1080 60hz. I ordered a Maxonar DisplayPort to USB-C cable from Amazon, which supports DP 1.4. The HDMI cable worked but not at 5120 x 1440. ![]() I assuming it’s because the usb-c cable I had only supports DP 1.3. At first the M1 wouldn’t work with the DisplayPort to USB-C cable, even after updating to Big Sur 11.0.1. However, on the new Mac Mini M1 I had a hard time getting 5120x1440 120hz. It works perfectly with on MacBook Air 2020. I have a SAMSUNG 49” CRG9, which supports 5120 x 1440 120hz.
0 Comments
Leave a Reply. |