[Feature Request] Support Relative Mouse Mode

[zegelin]

When trying to use a BliKVM v4 connected to a Hikvision NVR I can see the video output of the NVR and while the mouse/keyboard works, the local client mouse position is totally off compared to the remote pointer. It's only correct when the local mouse is positioned to the very top-right corner of the screen.

I note that PiKVM docs talk about mouse modes (https://docs.pikvm.org/mouse/), but I cannot see any mention of that in the BliKVM v4 docs. I've ssh'ed into the KVM but /etc/kvmd doesn't exist.

Tried in Firefox and Chrome. Same problem. Also tried different aspect ratio settings.

First screenshot shows the local and remote pointers closely aligned in the top-right. Second screenshot shows local cursor near the bottom-left, yet remote cursor is in the middle of the screen.

I asked on the BliKVM Discord if this feature was available and it was explained to me that v4 currently doesn't support this feature.

Can relative mouse mode be added to the v4 device OS?

[m50S79sM6SRNp8Jn]

We plan to deliver this feature as part of our new BliKVM Matrix release, tentatively Q1/Q2 2024.