^{Originally posted by SZanlongo April 13, 2025}
I'm trying to toggle PBP on my monitor, and apparently unable to set the value to turn off PBP.

I have determined:

• PBP address="0xe9"
• "Off" value="0x00"
• PbP 50% value="0x24"

These were confirmed by using: ./betterdisplaycli get -name="DELL U3425WE" -feature=ddc -vcp=0xe9 after manually switching between the different modes.

I am able to start a 50% PBP via: ./betterdisplaycli set -name="DELL U3425WE" -feature=ddc -vcp=0xe9 -value=0x24.
However, my attempt to turn off PBP via: ./betterdisplaycli set -name="DELL U3425WE" -feature=ddc -vcp=0xe9 -value=0x00 fails. I don't get any message, but PBP persists, and is confirmed by running ./betterdisplaycli get -name="DELL U3425WE" -feature=ddc -vcp=0xe9 which returns the PBP value of 36.

Any ideas as to why the set operation doesn't seem to work?