Not reading DDC HDMI Input source code correctly

[taprobane99]

My monitor has the following hardware inputs:

USB-C 1
USB-C 2
HDMI

In Linux ddcutil reports the following codes:
0f Displayport 1 (real = USB-C 1)
10 Displayport 2 (real = USB-C 2)
11 HDMI 1 (real = HDMI)
Switching works as expected.

BetterDisplay reads the following codes as active when I change input in the monitor menu:
15 Displayport 1
16 Displayport 2
17 HDMI 1

But when I try to switch to HDMI via Betterdisplay (i.e. sending code 17) I get no signal.

1. Why does Betterdisplay think HDMI is 17 when ddcutil thinks HDMI is 11?

2. Is it safe to tell Betterdisplay to send 11 to my monitor for HDMI?

[waydabber]

Hi there - 17 is 0x11 (one is decimal, the other is hexadecimal representation), so the values match nicely.

[taprobane99]

Ok, I'm not sure why my monitor didn't switch properly then. Out of interest, Is it possible to 'break' a monitor controller by sending a DDC code value it doesn't understand?

Also, I'm using one of those cheap aliexpress displays with the "Blue" OEM menus. Always curious what kind of controller they use.