The resolution while connected to a Mac mini looks like 1080 and not 1440. When connecting a Windows PC however the quality jumps up. Setting on Mac are indeed set to 2560 x 1440 but not being displayed on monitor unfortunately. Have tried multiple HDMI cables all with same poor results.
Mac mini 2018 or later
If you have a 2018 or 2020 Mac Mini, move the display to a USB-C port using a USB-C to HDMI adapter.
https://www.amazon.com/Adapter-uni-Thunderbolt-Compatible-MacBook/dp/B075V68NVR
https://www.apple.com/shop/product/MUF82AM/A/usb-c-digital-av-multiport-adapter
https://www.apple.com/shop/product/HKQ22ZM/A/belkin-usb-c-to-hdmi-adapter
FWIW, on my M1 MacBook Air which only has TB4/USB4 ports,
I have a 27 " Apple Thunderbolt Display with 2560x1440 resolution.
When I set the displays to mirror, What is displayed on my TB Display
is exactly what it would look like if I was looking at the desktop on
my late 2013 27" iMac which is also 2560x1440. Everything is crisp
and clear.
Also, instead of HDMI have yo tried using USB-C to DisplayPort cable?
I ask because over the years I have seen people who have issues with
HDMI go away when connected via the Thunderbolt Port with an
appropriate adapter. I have also seen the reverse as being true as well.
Also, have you tried making any changes to the settings in the monitor
itself?
Hmm...
I did just try a USBC Thunderbolt 3 to Display Port cable with the same results. The more I study the matter the more it looks like a PPI issue but it would not explain why when connected to a Windows PC it looks super sharp. At issue is not so much pictures but programs that use Text such as Pages and Word. The letters are very blurry. Not sure where to go from here. Have tried SwitchResX but Mac is already showing the proper 2560 x 1440 resolution in the Settings.
I have the same problem with my LG 34 inch with 2560 x 1440
On a Dell Windows computer all my Facebook pictures and all my Youtube Videos come in Crystal clear.
Butttt with a Mini Mac 1
My Facebook pictures and Youtube Videos come in very Dark......
I am sure I can upgrade to a better and Newer monitor for $499 but afraid I might get the same problems.....JT
Sorry to here that.
If you have contacted Apple Support for help and are still not happy, then I suggest returning the M1 and getting something else.
FWIW I recently upgraded from a souped-up Late 2012 with a1T SSD and 16GB of RAM to a 2018 Mac Mini model and I'm not having any of these issues.
Thanks everyone for all the tips. I did just try a new Thunderbolt 3 to Display Port cable and no improvement. I can live with it, it's not that bad but it's so much nicer when working on spreadsheets when the lines and text are crisp and clear. Will let it go for now. Thanks again to all.
From what I am reading its only on the 2020 M1 MacMini..
And Apple says that they are Discontinuing the 2560x1440 on the M1
johnnytuinals wrote:
And Apple says that they are Discontinuing the 2560x1440 on the M1
Where did you see or hear that.
This is what I got from Apple........
If the display is older, it may be a compatibility issue as 1080i resolution no longer supported.
Acer K272HUL 2560 x 1440 Monitor Picture Quality
