Acer Predator X32Q FS display flashes over USB-C, disconnects and doesn't wake with MacBook pro

bitwiseshiftleft
bitwiseshiftleft Member Posts: 4 New User
edited December 23 in Monitors

I just bought an Acer Predator X32Q FS display, which I use with a MacBook Pro (14" M1) over USB-C (DisplayPort Alt, 4k, 144Hz.). It's a good combination when it works.

However, I have had several problems with the USB connection, all of which are intermittent:

  • When waking my laptop, the display often does not wake up. It does not respond to the power button, menu button, or unplugging/replugging USB. It shows no image, is not recognized by the laptop, and doesn't charge the laptop.
  • Sometimes the display switches to flashing red/green/blue/white/black.
  • Sometimes the display turns off after a few seconds, and then reconnects and turns back on.

These problems are generally solved by power cycling the display, using the switch on the power strip, but usually not by other means. Rebooting the computer or disconnecting/reconnecting USB doesn't usually help, so I think the problem is probably on the monitor end. No other computers or peripherals are currently connected to the display.

I've tried using both the USB-C cable that came with the display, and another one that's also rated for power delivery and DP Alt at an appropriately high bandwidth (I don't remember now but I checked that the bandwidth was nominally enough when I bought it), and switching the cable does not noticeably affect the problem.

Is there a settings fix for this? The X32Q FS doesn't have firmware updates, does it? The Acer page on X32Q FS has support links but none of them work, at least not in the Dutch version of the page.

Answers

  • sri369
    sri369 ACE Posts: 2,823 Pathfinder

    Is this problem present only with the macbook? Does it work fine on other laptops (windows based).

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  • bitwiseshiftleft
    bitwiseshiftleft Member Posts: 4 New User

    Not sure… I can try to borrow a PC and test but it would be nice to be able to resolve without that.

  • bitwiseshiftleft
    bitwiseshiftleft Member Posts: 4 New User

    The same behavior occurs under Windows.

  • sri369
    sri369 ACE Posts: 2,823 Pathfinder
    edited December 24

    I was looking into this monitor details where I see this monitor consumes power when in off state too (https://www.acer.com/il-en/predator/monitors/pdp/UM.JXXEE.S05). It could be the case that the monitor is not auto switching between various inputs when you are waking up the laptop. Try going into monitor settings and change the mode to "auto" (this is the ideal mode the monitors should be in, instead saying pick a certain mode like hdmi, dpi or whatever). Let me know if this helps.

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  • bitwiseshiftleft
    bitwiseshiftleft Member Posts: 4 New User

    The monitor has been using "Auto Source: On" which is the factory default.

    There might be a loose connection on the monitor itself. I've found that sometimes jiggling the cables or the monitor helps a little bit, but I'm not sure if it's the cables or the monitor that are the problem.