Am 17.05.2014 01:16, schrieb Chris: > Ulrich Pegelow wrote, le 16/05/2014 21:32 : >> No idea. Does not happen here, neither with AMD nor with NVIDIA. >> >> Ulrich > > I found that Performance Level of the GPU switch from 0 to 2 (the > maximum) as soon as DT is launched even tough GPU Utilization stay to 0 ! >
I guess it's a driver issue. I once observed some "background" activity of the GPU once darktable was started. But that was with a much older version of the Nvidia driver. IIRC there was also some ongoing GPU activity with a darktable binary compiled in debugging mode. My assumption was that the driver continuouly polls the GPU for status checks and the like. Ulrich > >> >> Am 16.05.2014 21:23, schrieb Chris: >>> Hi, >>> >>> After launching DT the GPU temperature (and fan speed) rise >>> significantly even without using it (see curve) :-\ >>> OpenCL activated or not ! >>> >>> DT 1.4.2 from ppa >>> Ubuntu 14.04/3.13.0-24-generic >>> GeForce GT 220 >>> NVidia driver 331.38 >>> NV control 1.29 >>> >>> An idea to make Darktable more Green ? >>> ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ darktable-devel mailing list darktable-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-devel
