On Thu, 2024-01-25 at 18:13 +0300, test wrote: > What is the most proper way to re-route output from a rendering card > (which can have it's output disconnected or don't have it at all) to > a > displaying card (weak one, iGPU etc)? > For example, a laptop with an external card in an ExpressCard riser > (no > external display is connected to the card), or a desktop PC with > embedded video plus Nvidia Tesla? > How should I configure Mesa in order to get «auto-screen-grabbing» > from > the rendering card to the displaying one?
Fixed the title. Sounds like you're interested in `DRI_PRIME` variable. See documentation here https://docs.mesa3d.org/envvars.html#envvar-DRI_PRIME Assuming you want this for development purposes, you can also use Vulkan API, but Idk details here. This is a user question though, so belongs to mesa-users and not to mesa-dev.
