koi

Thanks for checking! Earlier posts in this thread showed PTP was enabled. Does anybody know why it got disabled now? Is that an oversight during kernel upgrade?

I think if you install one of those desktop images, the gpu driver is already included.

I am not sure if things have changed. I bought a new Orange Pi 5 plus, tried both Armbian_23.8.2_Orangepi5-plus_bookworm_legacy_5.10.160.img.xz and Armbian_23.8.2_Orangepi5-plus_jammy_legacy_5.10.160.img.xz from https://mirror-us-phx1.armbian.airframes.io/dl/orangepi5-plus/archive/ but it doesn't show hardware ptp: Capabilities: software-transmit software-receive software-system-clock PTP Hardware Clock: none Hardware Transmit Timestamp Modes: none Hardware Receive Filter Modes: none I am wondering if the Realtek driver included in legacy kernel 5.10.160 has disabled hardware PTP like mentioned in this post: https://serverfault.com/questions/1078760/ptp-support-for-rtl8125b-cg-nic-in-ubuntu-20-04 @royk is this something you could try with the latest Armbian_23.8.x and legacy kernel 5.10.160? If the hardware ptp disappears, we know it is the kernel Realtek driver issue. Otherwise, it may be because Orange Pi changed the underline NIC hardware for the latest production batch.