dGPU always on

[0_nomad_0]

Since I installed the new nVIDIA drivers (576.28) on my laptop, the dGPU remains active all the time while HWinfo is running. Only when I exit HWINFO does the dGPU switch off and on as it should.

 

[Martin]

Are you using the latest HWiNFO version?

 

[0_nomad_0]

Are you using the latest HWiNFO version?

Yes sir, version 8.24-5700. When I switched back to the old drivers (572.83), everything started working normally again; dgpu goes on and off while hwinfo is running.

 

[Martin]

Then it must be a bug in drivers.

 

[0_nomad_0]

Then it must be a bug in drivers.

The problem persists with the drivers released today (576.4). I noticed that changing Global Polling Period to 11000ms or more solves the problem. I don't know what to make of this but perhaps you do. I also reported the problem to nVIDIA but I haven't heard any comments yet.

 

[Martin]

11000 ms (11 seconds) really or is that a typo?

 

[0_nomad_0]

11000 ms (11 seconds) really or is that a typo?

Correct, 11 seconds or more.

 

[Martin]

Hmm, that's a huge delay required.
HWiNFO in each polling cycle and before accessing the GPU queries the state. If the GPU is sleeping, it won't proceed with further queries to avoid waking it up.
Must be some bug in drivers...