Questione HDMI 2.1 sui Legion 5 e 5Pro 2021. Pare che non ci sia nulla da fare per avere il max delle specifiche 2.1 su un tv/monitor esterno via HDMI (cioè il 4K@120Hz con 10bit e 4.4.4 o 4.4.2) per via della divisione di banda tra schermo integrato e porta HDMI. Di fatto è un fake HDMI 2.1 quello presente, più vicino ad un 2.0b.
Il fatto è questo:
We contacted HDMI.org who are the “HDMI Licensing Administrator” to ask some questions about this new standard, seek clarification on several questions we had and discuss the Xiaomi display we mentioned above. Here is what we were told:
- HDMI 2.0 no longer exists, and devices should not claim compliance to v2.0 as it is not referenced any more
- The features of HDMI 2.0 are now a sub-set of 2.1
- All the new capabilities and features associated with HDMI 2.1 are optional (this includes FRL, the higher bandwidths, VRR, ALLM and everything else)
- If a device claims compliance to 2.1 then they need to also state which features the device supports so there is “no confusion” (hmmmm)
So according to what they have told us, this means that in theory
all future devices with an HDMI 2.x connection should now be labelled as HDMI 2.1, even though at the end of the day they may only offer the capabilities of the older HDMI 2.0 generation. With HDMI 2.0 certification now discontinued, these are basically 2.0 devices hiding under the replacement banner name of 2.1. They don’t have to offer any new capabilities whatsoever, but they are still supposed to be labelled as 2.1 it seems.