ALLM – Auto Low Latency Mode – is for gamers. The HDMI feature automatically switches in and out of the TV's game mode. Here is an updated list of compatible TVs.

ALLM is one of the optional HDMI 2.1 features that is backwards compatible with HDMI 2.0. This does not mean that all HDMI 2.0-equipped TVs support ALLM, though. It simply means that some models may. It is not even mandatory to support ALLM on a TV with HDMI 2.1.

The concept of ALLM is to introduce automation into the video chain, eliminating the need to manually turn on and off game mode whenever you start or quit a video game. Game mode is typically required to reduce input lag to the lowest possible level on a TV. However, you usually would not want to use game mode for non-gaming purposes, as colors may not be accurate and some of the TV's processing features may be deactivated.

You can think of ALLM as a kind of 'Filmmaker Mode' for gaming, except that color accuracy is not a parameter.


What ALLM does
ALLM must be supported by both the display (TV, monitor) and the source device (game console, PC) to work. If there is a soundbar or receiver in the signal path from the source device to the TV, this audio device must also support ALLM passthrough.

ALLM is supported in Xbox One S, Xbox One X, Xbox Series S and Xbox Series X. It is also supported in PlayStation 5, where Sony has rebranded it as 'Auto Genre Picture Mode'. PlayStation 4 has an older system that automatically switches your TV to game mode but fails to switch back again, which can be problematic if, for example, you use your console's apps. PCs can also support ALLM. As for TV models, see the next section.


 The concept of ALLM, illustrated by Sony, which refers to it as 'Auto Genre Picture Mode' on PS5

Most of the time, ALLM will be on by default, but sometimes you may have to enable it in your device's settings menu. The process will vary depending on the brand and model.

 Also read: List: TVs with HDMI 2.1 VRR, AMD FreeSync and Nvidia G-Sync

When ALLM is enabled on both the TV and source device, your TV should automatically switch into game mode whenever you start a game. Some TV models have a dedicated 'Game' picture mode, while other TV models can activate game mode on top of any picture mode to bring down input lag. This should all happen automatically.


 TV makers also have their own names for ALLM in the UI and menus. Here's an LG TV. Photo: FlatpanelsHD

Which TVs support ALLM?
ALLM is supported in TVs from most brands, but not necessarily in all of their models. The HDMI group requires that the TV brand specifies ALLM in the specifications, but it is not always accurate.

There is no official logo for ALLM, and manufacturers are free to label it however they choose in their user interfaces and menus (though not in the specification lists).

The list below pulls data from FlatpanelsHD's TV Database to show you all the models that support ALLM. The list will automatically expand as the TV Database gets updated.


HDMI:
Only TVs with HDMI 2.1 (4K120)
TV brand:
B&OHisenseLGLoewePanasonicPhilipsSamsungSharpSonyTCL