I wonder if its related to it to the strange data blocks Checksum Correct Section "Monitor" Identifier "PHL 13B1K3300" ModelName "PHL 13B1K3300" VendorName "PHL" # Monitor Manufactured week 19 of 2023 # EDID version 1.4 # Digital Display DisplaySize 270 200 Gamma 2.20 Option "DPMS" "true" Horizsync 60-120 VertRefresh 59-61 # Maximum pixel clock is 150MHz #Extension block found. Parsing... extb[4]: 0x23 (0x20) Hmm, you have data blocks, but not video ones... weird Something strange happened. Please contact the author, Matthew Kern at <pyrophobicman@gmail.com>