I did a clean install of the latest driver and now HQP has the GPU working at ~30%… with the intensive poly-sinc (non short) filter at DSD512…
Great? Nope, playback stutters.
Turned off CUDA support in HQP and it works fine again.
Jussi has said in the past (on CA Forum somewhere) that sometimes the GPU and CUDA offloading can make things worse if it’s the weakest link.
Might be the case for me with my i7-7700HQ and 1050 Ti.
Be careful what one wishes for in life.
@jussi_laako an interesting observation. This same laptop running your full bootable HQPe can’t play poly-sinc (non short) at DSD512 but the same laptop running HQP on Windows can without any issues and CUDA is disabled on both so that’s not a factor. I would have expected HQPe to work fine and Windows to struggle (less efficient?) but it’s the other way around.
One difference is on Windows it’s using ASIO driver (ProJect S2 DAC) and on HQPe it’s using ALSA.
I’ve tried ALSA buffer of 0 (default), 100ms and 250ms - no difference. With HQPe it’s not stuttering, it’s actually dropouts, every 10 seconds or so. But it’s the same chain that Windows has and Windows plays without any dropouts.
Dell Inspiron 7567, i7-7700HQ , 1050 Ti