Just bough MBP M5 and stuck at 3062x1282 HiDPI

[Anth0x27]

Hello everyone,

I assume I’m facing the same issue as others here. I just bought a MacBook Pro M5 for work and I’m having the same problem with my Dell 3440x1440 monitor: I’m limited to a HiDPI resolution below the monitor’s native resolution.

Another surprising thing is that if I connect directly via HDMI to the MacBook’s built-in HDMI port, I can get 100Hz, but when I use my Dell USB-C multi-dock it’s limited to 60Hz.

So my questions are: does the M5 chip have the same limitations as the M4/M3/M2/M1 chips, meaning you’re basically forced to get a Pro or Max chip? Or should I consider changing monitors and moving to a 5K2K display instead? I really want to keep an ultrawide setup, but Apple makes this unnecessarily difficult. Also, would switching to a DisplayPort to Thunderbolt cable change anything in my case?

For now the result is still fairly clean, and BetterDisplay is genuinely a great piece of software. But after using the MacBook’s built-in screen, you get used very quickly to the sharpness and overall quality, so I’m wondering whether I should change my monitor, or change my Mac and wait for the M5 Pro/Max models.

[waydabber]

Hi, can you give me an export of Display Information… under the display's Settings page (in the app - see at the top + the export feature - preferably switch the app to English if possible for the export)?

[Anth0x27]

Of course, i send you the 2 reports, with internal hdmi port and through my external usbc dell dock
DELL S3422DWG_report_hdmi_external_dock.txt
DELL S3422DWG_report_internal_hdmi.txt

[waydabber]

Yes, the mechanism seems to be the same as the M4 - the display tries to be conservative with the allocated max video image size in anticipation of an additional display. So although the hardware is capable of supporting 8K (similar to the M4) it won't be enabled unless an actual 8K display is connected or a high refresh rate display is connected that would make connecting an additional display impossible anyway - in that case the system allocates all resources to that single display.