Late last month RandR 1.3 with panning support
arrived and was committed to the forthcoming X Server 1.6
release. Many drivers have picked up the RandR 1.3 support
presented thus far, but now the properties support has finally landed for version 1.3 of the Resize and Rotate extension.
Properties support for RandR 1.3 has been discussed for quite some time
and was discussed again in October with an initial proposal
. This RandR 1.3 properties support has now been committed to master in the respective Git trees and the RadeonHD driver
has picked up support for the required properties.
The known properties for RandR 1.3 include EDID data, signal format, signal properties, connector type, connector number, compatibility list, and clone list, but only the signal format and connector type are mandatory to be a RandR 1.3 compliant driver.
The latest RandR protocol specification can be read about here
. Additional information about this new functionality that's exposed to RandR clients can be read about on Matthias Hopf's blog
(the one responsible for much of the RandR 1.3 work).