Xfce Forum

darkhorse

Member

Registered: 2023-09-25

Posts: 2

Problem with dual monitor setup

Hi!

I've recently installed Debian testing (trixie) + xfce (4.18) on my new PC and everything works great except one thing. I have two displays connected to my Radeon RX 6600; one to DisplayPort (primary display), and the second one to the HDMI port (secondary display). The problem is, whenever I power off and on my primary display, all of the maximized windows on the primary display are moved to the secondary display. Non-maximized windows are not affected, and turning off/on my secondary display doesn't have this weird behavior. Why does it happen and how to fix it?

Thanks.

darkhorse

Member

Registered: 2023-09-25

Posts: 2

Re: Problem with dual monitor setup

Okay, managed to solve it finally. Turned out the culprit was displayport's hotplug feature... Monitoring udev events revealed that every time I power on the display, there are a bunch of hotplug events. After a bit of online searching, I found a kernel command line parameter that solved the problem. Added "video=DP-1:e" (where e=output forced to on) to the kernel parameters, and now everything works as expected.

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,485

Re: Problem with dual monitor setup

Interesting finding. Hopefully this will help others with similar issues. Thanks for posting back the solution.

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