Linux - hybrid graphics - nVidia GPU offload - slow conversion/rendering
Posted: Mon Jun 19, 2023 5:18 pm
Hi.
If i'm running my Ubuntu in hybrid graphics mode (integrated Intel + descrete nVidia)
and if i want to launch XnView MP via nVidia graphic chip like this:
it looks like nVidia is not involved.
I think so because when I click the Export command, the preview progress bar (auto update) crawls very slowly, that is, the image is rendered as if it were not nVidia chip, but the built-in Intel graphics.
And when I click Save in the Export window, the image saves slowly again.
But sometimes, if i just run i get the progress bar moving as fast as lightning. But this happens rarely and randomly.
So
How about adding information somewhere about which graphics card is actually doing the export/conversion/rendering?
I think it can help to find out if this issue related to Intel, if XnView MP cannot work correctly with hybrid graphics on Linux.
If i'm running my Ubuntu in hybrid graphics mode (integrated Intel + descrete nVidia)
and if i want to launch XnView MP via nVidia graphic chip like this:
Code: Select all
export __NV_PRIME_RENDER_OFFLOAD=1 \
export __GLX_VENDOR_LIBRARY_NAME=nvidia \
export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0 \
export __VK_LAYER_NV_optimus=NVIDIA_only \
export LIBVA_DRIVER_NAME=nvidia \
export PW_PRIME_RENDER_OFFLOAD=1 \
/usr/bin/xnviewI think so because when I click the Export command, the preview progress bar (auto update) crawls very slowly, that is, the image is rendered as if it were not nVidia chip, but the built-in Intel graphics.
And when I click Save in the Export window, the image saves slowly again.
But sometimes, if i just run
Code: Select all
/usr/bin/xnviewSo
How about adding information somewhere about which graphics card is actually doing the export/conversion/rendering?
I think it can help to find out if this issue related to Intel, if XnView MP cannot work correctly with hybrid graphics on Linux.