I also push for this request with two 4k monitors, one 144hz and one 60hz. the 144hz monitor is constrained to 60hz with HDMI 2.1. Even 120hz does not work. The outcome results in a black screen then a lost signal
The issue trades back and forth between power draw and refresh rates
I’m sure I’m one of the first consumers actually running the RTX 3090 on Linux, so I understand that all the issues may not have been caught. And we definitely have one here.
Idle power usage is over 100W at all times. That’s insanity.
I know this is a power-hungry GPU, that’s all well and good, but not at idle when the GPU core clock is at 240MHz. At least it definitely shouldn’t be. Yet as sure as I’m standing here, I have a constant power draw of 110-115W just on the desktop doing nothing …
Had my Ubuntu MATE system (22.04) was using Nvidia 510 drivers. At random looking at nvidia-smi I noticed the power draw elevated at idle. About 75 Watts. Did some research and it was a known issue and was fixed in the 515 driver.
Updated to 515, cool power draw normalized. BUT…my monitor no longer could be set to 144hz. If I tried, it would go standby. Wouldn’t revive until reboot. Settings would not stick.
Tried via the additional drivers gui and straight from NVIDIA. Figured I would need to…