Why every running CUDA programs force the GPU to P2 state. It’s really annoying: There is no way to disable that behavior. (no NVreg_* options in nvidia kernel module). It prevents power saving when decoding with NVDEC (GPU clock doesn’t decrease bellow base clock). It reduces GPU performance of C…

It is 2024 - and this issue make Nvidia GPU video acceleration pointless in Linux. Is it actually worth it? opened 11:28AM - 03 Mar 24 UTC (UTC) [danilw] danilw …

lets get nvidia to notice this post and make some changes. I agree it’s really weird seeing this forced and it shouldn’t behave like this.

this issue is especially annoying on my system because it causes the fans on my founders edition 3070 card to spin up for no reason when watching videos at 1440p / 4k. The card is only at 42c and the fans are still spinning. They’re easily the loudest and whiniest fans in my system too.

Hi guys, any progress? Also, why Nvidia developers not replying to similar question? What are they doing all day? Tracking stock price?

Still occuring on 565 drivers. Nvidia, what is going on?

Same for 570 and 575. [image] NVDEC forces GPU into P2 CUDA state -> much higher power consumption than with VDPAU Linux Any info on this issue?

I found this gist by @rafael.ristovski boost_bypass.c · GitHub seems to have helped with the issue a bit on librewolf

works for me for chrome, kodi and mpv, thanks

great. now if only nvidia could provide us a nicer way to achieve this, maybe with an env var or something (no shade to your gist rafael :P)

Remove "P2 forced" state from drivers

Graphics / Linux Linux

thesword53 October 11, 2024, 11:52pm 7

I found that setting disable_vrr_memclk_switch to 1 in the nvidia-modeset module forces the GPU to P0 even if you are running CUDA programs and that also happens with certain combination of screen refresh rate.

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Remove "P2 forced" state from drivers

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