Adaptive Sync enabling in Xorg Modesetting driver

[Daniel Vetter]

On Mon, May 25, 2020 at 07:01:21PM +0530, uday kiran pichika wrote:
> Hello,
> 
> Am working on enabling the Adaptive sync feature as part of the
> Xorg/Modesetting DDX driver by taking the reference of AMD DDX Driver
> (xf86-video-amdgpu). Below is the commit which i submitted.
> https://gitlab.freedesktop.org/pichika/xserver/-/commit/682565a645bda7371cc3731ee805cc4a0ace80db
> 
> 
> I have made the below changes to enable this feature
> 1. Enable Adaptive sync in Graphics Driver
> 2. Added Xorg.conf file with VariableRefresh property which is read in the
> Modesetting driver --> This is working fine.

-modesetting, even in latest git master branch doesn't have VRR support.

So yeah this wont work.
-Daniel

> 
> After taking the above changes, am observing that Adaptive sync is not
> working.
> 
> Below are my observations.
> 1. loader_dri3_helper.c  --> Adaptive sync property is being set once the
> system is booted successfully on one Window. Once
> set_adaptive_sync_property() method gets called, adaptive_sync_active flag
> is setting to true. From the next time, when fullscreen applications are
> loaded, this property never gets set on any window.
> 2. Once this property is being set, received a notification in modesetting
> ddx driver and read the property from the Stuff->window.
> 3. But when the fullscreen application(Either DOTA or Xonotic), not
> observing that this propety is not being set on any app window.
> 
> Can any one please help me why this property is not being set in the
> application windows ?
> 
> Thanks
> Uday Kiran

> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel


-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch