sudo ./LightBurn
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'
libpng warning: iCCP: known incorrect sRGB profile
connected
Couldn't open preferences file for reading
"Integrated_Webcam_HD: Integrate" "/dev/video0"
Couldn't open preferences file for reading
QXcbConnection: XCB error: 3 (BadWindow), sequence: 898, resource id: 4218701, major code: 40 (TranslateCoords), minor code: 0
Found port: PID 24577 VID 1027
Manufacturer: "FTDI"
Product: "FT245R USB FIFO" on "ttyUSB0"
FTDI: Probable Ruida / TopWisdom (possibly GRBL)
Port open succeeded
Vend: 7531 Prod: 3
Manufacturer: Linux 5.4.0-67-generic xhci-hcd Product: xHCI Host Controller Serial: 0000:00:14.0
Vend: 1267 Prod: 8919
Manufacturer: ELAN Product: Touchscreen Serial:
Vend: 32903 Prod: 2603
Manufacturer: Product: Serial:
Vend: 3141 Prod: 26389
Manufacturer: CN0PYJNXLOG007BAB0H9A01 Product: Integrated_Webcam_HD Serial:
Vend: 1027 Prod: 24577
Manufacturer: FTDI Product: FT245R USB FIFO Serial: AC01LYBY
Vend: 7531 Prod: 2
Manufacturer: Linux 5.4.0-67-generic xhci-hcd Product: xHCI Host Controller Serial: 0000:00:14.0
now it works (at least laser detection)
Trying to fire up a new Mini Gerbil - #3 by chaoticmind indicates that it is related to dialout permission