[Mesa-dev] Question about display_gpu and render gpu in dri3_create_screen

Luc Ma onion0709 at gmail.com
Mon Sep 13 12:40:54 UTC 2021


I recently tried multi-GPU support on the mesa gallium drivers(glx=dri).
When I exported the env `DRI_PRIME=1`, I found that it didn't work with two
different drivers loaded at the same time.
because there are different driver names in my case. display_gpu driver
name is "r600" while render_gpu driver name is "nouveau". It failed to
create display gpu screen

if (strcmp(driverName, driverNameDisplayGPU) == 0) {
            psc->driScreenDisplayGPU =
                                                   &driver_configs, psc);

so I am wondering

- is it possible to use two GPUs from different vendors on a system with
gallium? one is for display, another for rendering
- is it possible to use two GPUs driven by a shared driver(say both "r600")
on a system?


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/mesa-dev/attachments/20210913/71cd87a1/attachment.htm>

More information about the mesa-dev mailing list