We have had a major problem for almost four year with these HP EliteOne 800 G1 All-in-One machines. Since the monitor is embedded inside the All-in-One machine, there is no separate power button for just the monitor. Forcing Power Off or ssh'ing from another machine to sudo reboot is required. The BIOS defaults to automatically selecting among three different models of LVDS from two different manufacturers. Manual selections do not "stick". I have a linux-hardware.org writeup i am working on as well. Will reply back when done. edid-decode SHA: 791ce31e7dc6 2022-09-09 08:44:21 "Missing Display Range Limits Descriptor." The BIOS settings allow choosing between two models of Samsung and one LG model. Alphanumeric Data String: 'V07' which happens to be an OEM of LCD monitors. Display Product Name: 'HPQ 800 AIO' Alphanumeric Data String: 'LM230WF3-SLL1' Manufacturer: HWP Model: 4233 Made in: week 21 of 2013 $ edid-decode --check --hide-serial-numbers /sys/class/drm/card0-LVDS-1/edid edid-decode (hex): 00 ff ff ff ff ff ff 00 22 f0 89 10 01 00 00 00 15 17 01 03 80 33 1d 78 0a a0 40 a6 56 52 9d 27 10 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 19 38 80 00 71 38 14 40 60 40 84 00 fe 1f 11 00 00 78 00 00 00 fe 00 56 30 37 0a 20 20 20 20 20 20 20 20 20 00 00 00 fc 00 48 50 51 20 38 30 30 20 41 49 4f 0a 20 00 00 00 fe 00 4c 4d 32 33 30 57 46 33 2d 53 4c 4c 31 00 a0 ---------------- Block 0, Base EDID: EDID Structure Version & Revision: 1.3 Vendor & Product Identification: Manufacturer: HWP Model: 4233 Serial Number: ... Made in: week 21 of 2013 Basic Display Parameters & Features: Digital display Maximum image size: 51 cm x 29 cm Gamma: 2.20 RGB color display First detailed timing is the preferred timing Color Characteristics: Red : 0.6503, 0.3378 Green: 0.3203, 0.6132 Blue : 0.1533, 0.0625 White: 0.3125, 0.3281 Established Timings I & II: none Standard Timings: none Detailed Timing Descriptors: DTD 1: 1920x1080 59.997 Hz 16:9 65.997 kHz 143.610 MHz (four way interleaved, 510 mm x 287 mm) Hfront 96 Hsync 64 Hback 96 Hpol N Vfront 8 Vsync 4 Vback 8 Vpol N Alphanumeric Data String: 'V07' Display Product Name: 'HPQ 800 AIO' Alphanumeric Data String: 'LM230WF3-SLL1' Checksum: 0xa0 ---------------- edid-decode SHA: 95d81c9 2021-01-01 22:37:47 Failures: Block 0, Base EDID: Missing Display Range Limits Descriptor. EDID conformity: FAIL