DisplayLink / evdi

Extensible Virtual Display Interface
MIT License
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Failed to map scanout buffer 2 monitors #435

Open rowanG077 opened 8 months ago

rowanG077 commented 8 months ago

I'm running hyprland on Aarch64 with this adapter: https://www.startech.com/en-nl/display-video-adapters/usb32dp24k60

When in use with one monitor it works without issues. However if I plug in the second monitor the monitor is "recognized" in hyprland but the monitor itself does not display anything.

Looking into dmesg I can see spam of

[18033.491780] evdi: [E] evdi_painter_grabpix_ioctl:1076 Failed to map scanout buffer

messages. Sometimes a message

[18033.491780] evdi: [E] evdi_cursor_set:131 Failed to map cursor.

appears. But this is much, much rarer. Without the second monitor attached dmesg is clean.

Does anyone have a clue what is going wrong here? Is something misconfigured on my side?