NVIDIA Prepares XWayland OpenGL/Vulkan Acceleration Support

[b8e5n]

At last, nvidia.will support wayland... By then I will have switche back to the red team. Hopefully by that time the vrr situation with hdmi will have been resolved. Then the last bit will be hdr!

[aufkrawall]

How are things like fan controls and overclocking/undervolting Wayland specific exactly? I wouldn't think VAAPI would be either?

It is in Nvidia world, where options like "coolbits" are Xorg output centric. Afaik nvidia-smi also works "headless", but it doesn't offer everything.

[You-]

What restrictions would those be?

Their previous attempted approach was criticised for violating the GPL.

[polarathene]

I wonder how they will get past the DMA buf restrictions

What restrictions would those be?

Things Nvidia is still partially or even entirely missing on Wayland (apart from GBM):
-custom EDID support
-VRR
-manual fan controls
-overclocking/undervolting
-color/gamma adjustment
-VAAPI in Firefox
...

-> Might be usable in ten years or so.

How are things like fan controls and overclocking/undervolting Wayland specific exactly? I wouldn't think VAAPI would be either?

[aufkrawall]

Btw: Nvidia Vulkan driver does not support mailbox vsync mode, which basically is a requirement for proper presentation on Wayland with uncapped frame rate.

[mdedetrich]

Windows HAVE to mantain compatibility, Linux don't.
If drivers are mainlined in the Linux tree, ABI change are not a problem and kernel devs have no interest on mantain ABI compatibility for out of tree drivers (nvidia).
If nvidia have no interest in mainlining his driver, then they will have to deal with the problem, their choice.
I would not say windows is "far ahead", quite the opposite!

My point is that Windows having to maintain backwards compatibility makes it harder for Windows and yet they have done a better job

[prodrigestivill]

Things Nvidia is still partially or even entirely missing on Wayland (apart from GBM)

For the pull request code it looks that they are only implementing DMA-BUF over EGLStreams.
So the GBM vs EGLStreams are still in the Wayland mess.

[Cotyso]

Nice! It would be awesome if Fedora 34 would switch to wayland by default on nvidia proprietary drivers, assuming that these changes land in stable soon.

[aufkrawall]

amdgpu kernel driver supports all kind of stuff like HDCP, HDR etc. It's not Linux as a whole that lags behind, it's mainly userspace. And Nvidia is one reason of this problem, not a solution.

[kokoko3k]

Microsoft's WDDM is far ahead of anything that Linux has ever offered, the fact that they were able to continuously add new features without breaking ABI's with drivers is a testament to that

Windows HAVE to mantain compatibility, Linux don't.
If drivers are mainlined in the Linux tree, ABI change are not a problem and kernel devs have no interest on mantain ABI compatibility for out of tree drivers (nvidia).
If nvidia have no interest in mainlining his driver, then they will have to deal with the problem, their choice.
I would not say windows is "far ahead", quite the opposite!