> On Sat, Jan 13, 2018 at 2:45 PM, François Patte > <[email protected]> wrote:
> >> Another question: when I start darktable from cli, I get these messages: >> >> DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument >> Assuming 131072kB available aperture size. >> May lead to reduced performance or incorrect rendering. >> get chip id failed: -1 [22] >> param: 4, val: 0 >> DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument >> Assuming 131072kB available aperture size. >> May lead to reduced performance or incorrect rendering. >> get chip id failed: -1 [22] >> param: 4, val: 0 >> cl_get_gt_device(): error, unknown device: 0 >> DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument >> Assuming 131072kB available aperture size. >> May lead to reduced performance or incorrect rendering. >> get chip id failed: -1 [22] >> param: 4, val: 0 >> DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument >> Assuming 131072kB available aperture size. >> May lead to reduced performance or incorrect rendering. >> get chip id failed: -1 [22] >> param: 4, val: 0 >> cl_get_gt_device(): error, unknown device: 0 >> DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument >> Assuming 131072kB available aperture size. >> May lead to reduced performance or incorrect rendering. >> get chip id failed: -1 [22] >> param: 4, val: 0 >> cl_get_gt_device(): error, unknown device: 0 >> >> What do they mean? > I'm guessing I915 means you have [integrated] intel videocard. > And you are trying to use it for opencl? Via beignet? > Don't do that. Doesn't really work, or is slower than CPU. Yes I have an integrated intel video card and an nvidia one; I use nvidia on two monitors and the intel one on a third monitor. No, I do not try to use opencl (I don't know how to do this) and no I don't try to use beignet (I ignore what it is!). Maybe this is done without my knowledge... How can I test and suppress this behavior? Thank you -- François Patte UFR de mathématiques et informatique Laboratoire CNRS MAP5, UMR 8145 Université Paris Descartes 45, rue des Saints Pères F-75270 Paris Cedex 06 Tél. +33 (0)6 7892 5822 http://www.math-info.univ-paris5.fr/~patte -- François Patte UFR de mathématiques et informatique Laboratoire CNRS MAP5, UMR 8145 Université Paris Descartes 45, rue des Saints Pères F-75270 Paris Cedex 06 Tél. +33 (0)6 7892 5822 http://www.math-info.univ-paris5.fr/~patte
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