HDMI will only work when the USB webcam is plugged in

Frontends KlipperScreen
1

Basic Information:

Printer Model: i3
MCU / Printerboard: M8P V2.0 with CB1
klippy.log (3.6 MB)

I installed Kaiuh, KlipperScreen, Moonraker, Crowsnest, OctoEverywhere and Obico.

Everything is fully updated.

I was able to use a USB keyboard and mouse prior to installing those programs. I connected a USB camera just to test it to see if it would stream, which it did. When I disconnected it my HDMI connected monitor lost signal. If I reconnect the USB webcam my HDMI monitor starts working.

I’m not sure how but my USB webcam and HDMI0 have become dependent on each other.

I have searched the web for a solution, and I can’t find a single thread or video where anyone has had this issue.

I uninstalled Crowsnest and rebooted without the camera connected and the HDMI did not work. I reconnected the camera and it worked.

I reinstalled crowsnest and rebooted with the same results.

xrandr --output HDMI-0 --mode 1920x1080
warning: output HDMI-0 not found; ignoring

xrandr --output HDMI-1 --mode 1920x1080
warning: output HDMI-1 not found; ignoring

xrandr
Screen 0: minimum 0 x 0, current 5360 x 1440, maximum 32768 x 32768
default connected primary 5360x1440+0+0 1418mm x 380mm
5360x1440 0.00*

xrandr -display :0.0 -q
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 527mm x 296mm
1920x1080 60.00*+ 50.00 59.94
1920x1080i 60.00 50.00 59.94
1600x900 60.00
1280x1024 75.02 60.02
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08

lsusb

3

I know that if I reflash the CB1 it’ll fix this issue, but I would like to find a way to fix it without doing that in case the issue ever arises again after I have everything setup the way I want it, the printer tuned, etc.

5

I am using Xrandr to see if I can find any issues.

When I run Xrandr --listactivemonitors I get:
0: +*default 5360/1418x1440/380+0+0 default

The monitor still does not work unless the USB camera is plugged in. I get the same results whether the camera is plugged in or not.

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