DDC command, INPUT: Type C for Samsung LS27A800U

[hostmit]

Hello!

It seems that application is unable to switch monitor Samsung LS27A800U to a Type-C input, but works fine for HDMI & DPI inputs. I tried all possible codes and it seems none work.

Does anyone know how to switch to type-c input? I'm attaching exported information about the monitor.

Display Information
BetterDisplay Version 3.4.1 Build 38167

LS27A800U - Third-party external display - Connected

Identifiers

Serial number: 304E394B
Vendor ID: 4C2D (SAM)
Model ID: 71A1
Product name: LS27A800U
Alphanumeric serial: HNMX500179
Year of manufacture: 2024
Week of manufacture: 20
UUID: 06976311-2739-4A4B-B43F-3E4A76A9E4FB
Dimensions (unrotated): 598.38mm x 340.77mm
Registry location: IOService:/AppleARMPE/arm-io/AppleT602xIO/dispext1@14000000/IOMobileFramebufferShim
Metal device: Apple M2 Pro
Platform: Apple Silicon
I2C service name: DCPAVServiceProxy
DDC messaging: Standard
CGDirectDisplayID: 3
Tag ID: 3
Configuration run ID: 1049
First added: 12 Mar 2025 at 13:22:30
Last detected: 6 Apr 2025 at 16:38:53
Last undetected: 6 Apr 2025 at 16:26:31

LS27A800U_report.txt

[waydabber]

I recommend moving this to Discussions, maybe someone with a similar display can respond. If the display can report things properly, you can look at the accepted list of input sources in the detailed DDC report created by the app (under DDC Features...).

[hostmit]

Thanks. I did it, but none of the detected values work.

[birdmanwings]

Thanks. I did it, but none of the detected values work.

I guess it's a problem with the device hardware, my LS27A800U usb-c is not effective either