Re: Mesa vulkan layer path fix for core-updates

[Andreas Enge]

Hello Kaelyn,

thanks for your research!

Am Wed, Apr 19, 2023 at 04:07:51PM +0000 schrieb Kaelyn:
> * https://issues.guix.gnu.org/62176 can be closed when core-updates is 
> merged, since core-updates contains mesa 22.2.4
> * Though not exactly mesa-related, https://issues.guix.gnu.org/61364 can 
> possibly be closed now, and almost certainly once the core-updates merge is 
> completed. (The ticket is a number of workarounds the user applied in early 
> Feb to be able to build their system profile using core-updates, to pick up 
> Mesa 22 for newer hardware support. I'm not sure if any of the patches are 
> still relevant.)

I just closed these two.

> * https://issues.guix.gnu.org/58887 looks like an alternate way of solving 
> the layer path issues that https://issues.guix.gnu.org/59453 also addresses. 
> Additionally, it adds two new nonstandard VK_*_PATH variables to 
> vulkan-loader, with at least VK_ILAYER_PATH seeming very similar in 
> functionality to VK_LAYER_PATH and VK_ADD_LAYER_PATH described at 
> https://github.com/KhronosGroup/Vulkan-Loader/blob/main/docs/LoaderInterfaceArchitecture.md
> * https://issues.guix.gnu.org/58251 would be fixed by 
> https://issues.guix.gnu.org/59453
> * https://issues.guix.gnu.org/62313 might need a modification to mesa e.g. to 
> add VDPAU_DRIVER_PATH as a native-search-path (one possible solution; in my 
> home profile I made VDPAU work by setting 
> "VDPAU_DRIVER_PATH=/run/current-system/profile/lib/vdpau").
> * https://issues.guix.gnu.org/48868 appears to be the same VDPAU_DRIVER_PATH 
> issue as https://issues.guix.gnu.org/62313.

And leave these to you and anybody who wants to work on them!

Andreas