9823ea4ed2
These changes have been ported from AMD GPU DDX driver. This patch adds support for setting the CRTC variable refresh property for suitable windows flipping via the Present extension. In order for a window to be suitable for variable refresh it must have the _VARIABLE_REFRESH property set by the MESA and inform Modesetting DDX driver with window property updates. Then the window must pass the checks required to be suitable for Present extension flips - it must cover the entire X screen and no other window may already be flipping. And also DRM connector should be VRR capable. With these conditions met every CRTC for the X screen will have their variable refresh property set to true. Kernel Changes to support this feature in I915 driver is under development. Tested with DOTA2, Xonotic and custom GLX apps. Signed-off-by: Uday Kiran Pichika <pichika.uday.kiran@intel.com> |
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X Server
The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.
Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the following article: https://en.wikipedia.org/wiki/X_server
All questions regarding this software should be directed at the Xorg mailing list:
https://lists.freedesktop.org/mailman/listinfo/xorg
The primary development code repository can be found at:
https://gitlab.freedesktop.org/xorg/xserver
For patch submission instructions, see:
https://www.x.org/wiki/Development/Documentation/SubmittingPatches
As with other projects hosted on freedesktop.org, X.Org follows its Code of Conduct, based on the Contributor Covenant. Please conduct yourself in a respectful and civilized manner when using the above mailing lists, bug trackers, etc: