
I have tested this with my PGM and my newly acquired PVM 2950 and can confirm that the settings are not being saved with my monitor if you only press mute. I built a small Arduino board to send the IR command for "12" back when I didn't yet have the original remote.
Over in the German circuit-board forum we are currently in the process of developing a solution that uses LIRC, a raspberry pi and some components to build an "IR Translator" to get rid of the problem. The LIRC codes for the original RM-854 remote are readily available.
https://gist.github.com/burk3/6ea991f77 ... baa5e63dfb
I've also played with the idea of selling cloned remotes by teaching chunghop L336 with my original.