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NVIDIA 495.44 stable driver is out for Linux, adds in GBM API support

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Following on from the NVIDIA Beta 495.29.05 earlier this month, today NVIDIA has a fresh 495.44 stable driver release that builds upon it with some additional extras. This is the big one for Wayland fans, since it now works with the GBM API.

With this API now hooked up, it should mean a better Wayland experience and it's something that the KDE Plasma team are already working on supporting too.

You will also find in this release an indicator (on supported desktops) for showing Resizable BAR and the minimum Kernel version got bumped from 2.6.32 to 3.10. Additionally these new extensions are supported:

There's also a healthy dose of bug fixes and other changes noted below:

  • Fixed a bug that could cause the X server to crash when starting a new server generation on PRIME configurations.
  • Removed support for NvIFROpenGL. This functionality was deprecated in the 470.xx driver release.
  • Removed libnvidia-cbl.so from the driver package. This functionality is now provided by other driver libraries.
  • Updated nvidia.ko to load even if no supported NVIDIA GPUs are present when an NVIDIA NVSwitch device is detected in the system. Previously, nvidia.ko would fail to load into the kernel if no supported GPUs were present.
  • Fixed a bug in the Vulkan driver where unused input attributes to a vertex shader would corrupt the interpolation qualifiers for the shader.
  • Fixed a bug in the Vulkan driver where individual components of barycentric inputs could not be read.
  • Fixed a bug where VK_NVX_binary_import was advertised as supported on unsupported platforms. This caused calls to vkCreateDevice to fail if applications attempted to enable VK_NVX_binary_import on such platforms.
  • Added a new command line option, "--no-peermem", to nvidia-installer.Selecting this option prevents the installation of the nvidia-peermem kernel module.
  • Fixed a regression which prevented DisplayPort and HDMI 2.1 variable refresh rate (VRR) G-SYNC Compatible monitors from functioning correctly in variable refresh rate mode, resulting in issues such as flickering.
  • Fixed a bug that can cause a kernel crash in SLI Mosaic configurations.

Since this is a stable driver release all users should be okay to upgrade.

Article taken from GamingOnLinux.com.
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42 comments
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BielFPs 26 Oct
And I would like to welcome the Nvidia users friends to the wayland side of the force

I hope now the Linux Mint devs can stop pretending that Wayland is not a thing.
illwieckz 26 Oct
Wow, I'm not an Nvidia user myself so that's not my own problem, but how many years the GBM support has been missing, 5½ years? It looks like Nvidia lost the arm wrestling…
jordicoma 26 Oct
Meanwhile we lost support for kepler gpu. I would buy a new gpu if the prices where "normal".
Hope they keep support on a legacy driver.
scaine 26 Oct
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Quoting: BielFPsAnd I would like to welcome the Nvidia users friends to the wayland side of the force

I hope now the Linux Mint devs can stop pretending that Wayland is not a thing.

You say that like everyone else has adopted it, and it's the new standard...? As far as I know Ubuntu, Debian, Fedora and OpenSuse do now default to Wayland, but it's not like it's used everywhere by any stretch. I'm on Pop 21.04 and there's no Wayland here. And don't KDE still have a few kinks to work out with Wayland?

It feels like the technology that's permanently "just around the corner". I just wish it had some kind of selling point - something that made me want to try it, other than vague "better architecture" back-end stuff that I'm meant to care about, but don't, on my single-user system. Instead, there's a list of quirks relating to screen sharing, keyboard overlays, proprietary apps and Nvidia or KDE incompatibilities.

It does feel like there's some momentum at long last though.
Torqachu 26 Oct
This is a blow to my poor gtx660.
no wayland and probably no more gaming (470 is the last proprietary driver for me)
CatKiller 26 Oct
Quoting: scaineIt feels like the technology that's permanently "just around the corner". I just wish it had some kind of selling point - something that made me want to try it, other than vague "better architecture" back-end stuff that I'm meant to care about, but don't, on my single-user system.
In principle, the idea is that you'd get better performance (you save a round trip between the display server and the compositor if your compositor is your display server), much better security, and ditch a bunch of cruft so maintaining it is way easier and bugfixes can happen more quickly. In practice, the spec was rather half-baked, relied on everyone having to independently reinvent the wheel, and gave Gnome devs an excuse for their CSD lunacy, and it's only now (years later) getting to the point that it's a moderately viable replacement for what we had before.
BielFPs 26 Oct
Quoting: scaineYou say that like everyone else has adopted it,
X.org developers adopted it, that's enough for me

Quoting: scaineand it's the new standard...?
It should already be, Nvidia drivers was the biggest hurdle in this story, but now that they're (somewhat) supporting gbm, things should go faster from now on (including bug fixes / missing features).

Quoting: scaineI'm on Pop 21.04 and there's no Wayland here.
I'm personally not familiar with Pop OS (I thought it was just another Ubuntu fork with a modified gnome and a easy nvidia installer, but I'm probably wrong) but I bet it is because of Nvidia drivers too. If that's the case, it may come once they rebase with Ubuntu 22.04.

Quoting: scaineIt feels like the technology that's permanently "just around the corner". I just wish it had some kind of selling point - something that made me want to try it, other than vague "better architecture" back-end stuff that I'm meant to care about, but don't, on my single-user system. Instead, there's a list of quirks relating to screen sharing, keyboard overlays, proprietary apps and Nvidia or KDE incompatibilities.
That's the unfortunately bad side of anything new in technology, not everything comes in stable packages and sometimes it requires a lot of different variables that can take a lot of time.

The good side is that you're not "forced" to use it right now if you don't want, but I'm happy that those who want to and were limited by it can now try it and maybe help to improve it, in order to make wayland feel like it "earned" the title of X11 replacement.

EDIT: So I've done a little research about Pop OS and they're from the same company that sells notebooks with Nvidia hardware, so they're in the same boat of Mint developers with their mint boxes


Last edited by BielFPs on 27 October 2021 at 4:30 pm UTC
x_wing 26 Oct
Quoting: scaine
Quoting: BielFPsAnd I would like to welcome the Nvidia users friends to the wayland side of the force

I hope now the Linux Mint devs can stop pretending that Wayland is not a thing.

You say that like everyone else has adopted it, and it's the new standard...? As far as I know Ubuntu, Debian, Fedora and OpenSuse do now default to Wayland, but it's not like it's used everywhere by any stretch. I'm on Pop 21.04 and there's no Wayland here. And don't KDE still have a few kinks to work out with Wayland?

It feels like the technology that's permanently "just around the corner". I just wish it had some kind of selling point - something that made me want to try it, other than vague "better architecture" back-end stuff that I'm meant to care about, but don't, on my single-user system. Instead, there's a list of quirks relating to screen sharing, keyboard overlays, proprietary apps and Nvidia or KDE incompatibilities.

It does feel like there's some momentum at long last though.

Kinda difficult to implement new defaults when the industry jerk makes lobby for their own problematic solution and blocks the development of any open source alternative.
minfaer 26 Oct
Quoting: scaineIt feels like the technology that's permanently "just around the corner". I just wish it had some kind of selling point - something that made me want to try it, other than vague "better architecture" back-end stuff that I'm meant to care about, but don't, on my single-user system. Instead, there's a list of quirks relating to screen sharing, keyboard overlays, proprietary apps and Nvidia or KDE incompatibilities.

- Fractional scaling and diferent scaling on multi-monitors at least in gnome require Wayland
- Gamescope - even if you run it in an X session, it is a wayland compositor
- Active developers that fix upcoming issues

Maybe none of these apply to you, but to other end users, they do.
dubigrasu 26 Oct
Quoting: minfaer- Fractional scaling and different scaling on multi-monitors at least in gnome require Wayland
Is that a limitation only with Nvidia?


Last edited by dubigrasu on 26 October 2021 at 7:20 pm UTC
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