I moved my opencl_memory_headroom from 300 to 500 and still found
problems. I have now moved the value up to 800 Mb. and the system
appears to be running much more smoothly. Not sure if there will be
negative implications.
David
On 2019-03-13 12:40 p.m., Bruce Guenter wrote:
On Fri, Mar 08, 2019 at 01:01:34PM +0100, Sturm Flut wrote:
are you sure your GPU has enough resources to handle a dual-monitor
setup plus the Darktable GUI plus OpenCL? It's a six years old device
which was usually shipped with just 2 GB of dedicated video RAM.
I used to run a dual-monitor setup with a GeForce GTX950 2GB and had
exactly the same problems. Running OpenCL or CUDA on NVIDIA cards comes
with a lot of overhead, some desktop environments (looking at KDE and
GNOME) also need a lot of graphics memory, and in the end 2 GB were
usually not enough.
For whatever it's worth, I am also running darktable on a dual-monitor
setup with a GeForce GTX 750Ti 2GB and have no problems at all. Mind
you, I did tweak the darktablerc to increase opencl_memory_headroom to
500, so that may help David as well.
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