4 ms·

What machine are you referring to? I can hook 3 displays up to my MBP M1.

by zwily 4y ago

jeroenhd 4y ago
The problem is that the normal M1 only allows one external DisplayLink screen on macOS (Linux can get more screens out of the same hardware, I believe, as long as the I/O bandwidth doesn't get exceeded). In the end, the problem is that the first M1 chips simply didn't have the I/O capacity to drive multiple screens normally like the Intel machines before them could. Higher end and more recent chips have added more I/O (two screens for M1 Pro, four to five for M1 Max, five on M1 Ultra) DisplayLink, a proprietary protocol that sends video over USB, was never a problem. The quality and performance of DisplayLink is far below DisplayPort, though, because the video needs to go through software and an additional layer of compression to fit within the USB data speeds. You can see the limitations per model on Apple's website: https://support.apple.com/en-asia/HT202351 https://support.apple.com/en-asia/HT202351
- esskay 4y ago
  If you need more than 1 external display you go with an M1 Pro or M1 Max. They support 2 and 4 screens respectively. Buying an entry level model and expecting it to come with higher end features is a user issue, not a product issue.
  - sofixa 4y ago
    Higher end features that any other OS on the same hardware supports (this includes DP daisy chaining over non-Thundrbolt)?
    - esskay 4y ago
      No other OS on the hardware would support it as the M1 has physical limitations. You're in luck though, the M2 MBP's look to be releasing tomorrow.
  - nottorp 4y ago
    Hm one display connection seems to be reserved for the HDMI port if there is one. Considering how much trouble I tend to have with HDMI ports, that means the M1 Pro only supports ... one external display.
    - esskay 4y ago
      Well...no it supports two. Mines litterally sitting on my desk right now plugged into 2 screens and has been for ~4 months. A you issue doesnt make it an issue with the product ;)
      - nottorp 4y ago
        Sure but can i do 2 x usb-c to displayport? Every time I plug something via hdmi in my current mac it tells me its a tv. Fortunately being Intel i can use 2x usb-c instead.

What machine are you referring to? I can hook 3 displays up to my MBP M1.

by zwily 4y ago

What machine are you referring to? I can hook 3 displays up to my MBP M1.

The problem is that the normal M1 only allows one external DisplayLink screen on macOS (Linux can get more screens out of the same hardware, I believe, as long as the I/O bandwidth doesn't get exceeded). In the end, the problem is that the first M1 chips simply didn't have the I/O capacity to drive multiple screens normally like the Intel machines before them could. Higher end and more recent chips have added more I/O (two screens for M1 Pro, four to five for M1 Max, five on M1 Ultra) DisplayLink, a proprietary protocol that sends video over USB, was never a problem. The quality and performance of DisplayLink is far below DisplayPort, though, because the video needs to go through software and an additional layer of compression to fit within the USB data speeds. You can see the limitations per model on Apple's website: https://support.apple.com/en-asia/HT202351 https://support.apple.com/en-asia/HT202351

esskay 4y ago
If you need more than 1 external display you go with an M1 Pro or M1 Max. They support 2 and 4 screens respectively. Buying an entry level model and expecting it to come with higher end features is a user issue, not a product issue.
- sofixa 4y ago
  Higher end features that any other OS on the same hardware supports (this includes DP daisy chaining over non-Thundrbolt)?
  - esskay 4y ago
    No other OS on the hardware would support it as the M1 has physical limitations. You're in luck though, the M2 MBP's look to be releasing tomorrow.
- nottorp 4y ago
  Hm one display connection seems to be reserved for the HDMI port if there is one. Considering how much trouble I tend to have with HDMI ports, that means the M1 Pro only supports ... one external display.
  - esskay 4y ago
    Well...no it supports two. Mines litterally sitting on my desk right now plugged into 2 screens and has been for ~4 months. A you issue doesnt make it an issue with the product ;)
    - nottorp 4y ago
      Sure but can i do 2 x usb-c to displayport? Every time I plug something via hdmi in my current mac it tells me its a tv. Fortunately being Intel i can use 2x usb-c instead.