Slow, occational flicker on Monterey 12.5.1 (for M1) and DisplayLink Manager 1.7.1

[FredrikWendt]

I upgraded the OS and DisplayLink Manager after summer vacations, and now I'm getting occasional "flicker", or hick-ups, or replays of previously drawn screens. It usually happens after having entered some text, like I'm doing when writing this text here. Whenever I pause, the last letter "disappears" from the screen during ~300 milliseconds, before it appears again. I've figured out that its the full screen that's redrawn, first in a previous state, and then back to latest, actual state. I can switch browser tabs with a mouse/pointer device without causing this to happen, but when I change tabs using keyboard, the flicker appears about every 5-10 seconds.

This is incredibly frustrating. I will try to roll back DisplayLink Manager to a useable version.

[FredrikWendt]

I tried the new Alpha, and the same problem exists there. Turning on the new HiDPPI feature didn't make any difference.

I've downgraded to 1.6.1, which doesn't have this bug.

[FredrikWendt]

The computer is a MacBook Air (M1, 2020) with 16 GB RAM.
System Firmware Version: 7459.141.1
OS Loader Version: 7459.141.1

The DisplayLink adapter is a Belkin Dual Display USB-C Dock Model INC002 (R-R-K7S-INC002).

The two external monitors connected are both identical Samsung S27R65, attached with HDMI in both ends (no additional adapters).


Apple M1:

Chipset Model: Apple M1
Type: GPU
Bus: Built-In
Total Number of Cores: 7
Vendor: Apple (0x106b)
Metal Family: Supported, Metal GPUFamily Apple 7
Displays:
S27R65:
Resolution: 1920x1080 (1080p FHD - Full High Definition)
UI Looks like: 1920 x 1080 @ 60.00Hz
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Colour LCD:
Display Type: Built-In Retina LCD
Resolution: 2560x1600 Retina
Mirror: Off
Online: Yes
Automatically Adjust Brightness: Yes
Connection Type: Internal
S27R65:
Resolution: 1920x1080 (1080p FHD - Full High Definition)
UI Looks like: 1920 x 1080 @ 60.00Hz
Mirror: Off
Online: Yes
Rotation: Supported