output of xrandr -q
Welp. That looks promising. So yeah I already knew this anyway, but one monitor is 164.80 while the other is 165 even. Most settings daemons and Nvidia-settings show 165 for both but yeah xrandr has always shown 164.80 for the one monitor (even when I had an AMD GPU).
- Verify if power draw is high even with a single monitor and share results.
Nope, that’s the bug alright.
Power draw and clocks from nvidia-smi --query using two monitors:
Power Readings
Power Management : Supported
Power Draw : 99.83 W
Power Limit : 361.00 W
Default Power Limit : 350.00 W
Enforced Power Limit : 361.00 W
Min Power Limit : 100.00 W
Max Power Limit : 366.00 W
Clocks
Graphics : 255 MHz
SM : 255 MHz
Memory : 9485 MHz
Video : 1245 MHz
Power draw and clocks with only one monitor:
Power Readings
Power Management : Supported
Power Draw : 22.85 W
Power Limit : 361.00 W
Default Power Limit : 350.00 W
Enforced Power Limit : 361.00 W
Min Power Limit : 100.00 W
Max Power Limit : 366.00 W
Clocks
Graphics : 210 MHz
SM : 210 MHz
Memory : 405 MHz
Video : 555 MHz
These are with the exact same programs open, taken one after another just with one monitor turned off, then with that monitor on.
For some reason with two monitors the memory clock stays maxed out.
I’m happy to provide any other information you might need to help get this fixed, or at least mitigated. There’s no reason that a second monitor running at the same resolution should cause memory speed to max out and power draw to almost quintuple.