Re: [gentoo-dev] RFC: Introducing VIDEO_CARDS=iris to virtual/opencl

[Jaco Kroon <jaco@uls.co.za>]

Hi,

As someone with a Radeon / Intel hybrid/dual graphics chip.

I can only emphasise what Matt says below.  It's a PITA currently.

Having said that ... I don't see how this can be made simpler, unless we
have a tool of sorts that when run on *any* hardware gives you what this
needs to be set to, or unconditionally install all possible drivers
(something I'd prefer to avoid completely).

Kind Regards,
Jaco

On 2019/12/17 23:21, Matt Turner wrote:
> On Mon, Dec 16, 2019 at 10:26 AM Marek Szuba <marecki@gentoo.org> wrote:
>> What do you think, guys?
> I don't love it.
>
> I don't like the mess that has become VIDEO_CARDS=... either. radeon
> vs radeonsi vs amdgpu. Different names for different bits of the
> stack, even for the same hardware. I would like to come up with
> something that avoids the confusion users often have.
>
> Does anyone have suggestions?
>
> Should we make a cpuid2cpuflags equivalent for VIDEO_CARDS?
>
> Should VIDEO_CARDS specify only the vendor with MESA_VIDEO_CARDS=...
> etc for individual packages? (Seems gross)
>
> Should VIDEO_CARDS be more fine grained with multiple names for the
> same thing sometimes? (e.g., offer VIDEO_CARDS=amdgpu for
> media-libs/mesa that enables the radeonsi driver; similarly offer
> VIDEO_CARDS=radeonsi for x11-libs/libdrm that enables libdrm_radeon).
>
> I think perhaps that in conjunction with a cpuid2cpuflags-equivalent
> is the most sensible.
>