`nvtop -s` doesn't show `gpu_util` or `power_draw` for Intel cards

[Fmstrat]

When in normal mode, these are displayed fine, but with -s, it shows null:

$ nvtop -s
[
  {
   "device_name": "NVIDIA GeForce GTX 1060 6GB",
   "gpu_clock": "1025MHz",
   "mem_clock": "4006MHz",
   "temp": "57C",
   "fan_speed": "0%",
   "power_draw": "23W",
   "gpu_util": "1%",
   "mem_util": "31%"
  },
  {
   "device_name": "Battlemage G31 (Intel Graphics)",
   "gpu_clock": "2800MHz",
   "mem_clock": null,
   "temp": "59C",
   "fan_speed": "1061RPM",
   "power_draw": null,
   "gpu_util": null,
   "mem_util": "83%"
  }
]

[Steve-Tech]

Hi, what version of nvtop are you running? This is very similar to #371, which was fixed in 3.3.2.

[Fmstrat]

@Steve-Tech Thanks! Ubuntu 25.10 seems to still have v3.2. Trying the AppImage and it all looks good.

Using gam install syllo/nvtop instead of apt install nvtop fixes things for me.

[Fmstrat]

@Steve-Tech Unrelated, but happy to file an issue if you'd like me to, but in the new version, nvtop -sP shows all the PIDs (process list). Probably an enhancement, but was surprised to see them in the output.

[Fmstrat]

@Steve-Tech Actually... there might still be an issue. I'm showing 0% gpu_util and gpu_usage always with -s, even when the full-screen display of nvtop shows usage.

[Fmstrat]

Annnnnd needed to sudo (face-palm).

[Steve-Tech]

I don't think you should need sudo for that. But the calculations are based on incrementing values, and there may not be enough time between calls to properly calculate, nvtop -d 10 -s might be a bit more reliable. The memory usage will either need sudo or a setcap though (if it's not already done).

[Steve-Tech]

Unrelated, but happy to file an issue if you'd like me to, but in the new version, nvtop -sP shows all the PIDs (process list).

Yeah, this feels like an issue. Probably file a new issue, so it's more obvious to someone else in case they beat me to making a PR.

Also ping me in it, so I remember.

[Fmstrat]

Hmm, still 0% even with -d 10. Sudo works every time, though.