Le 13/01/2018 à 12:55, Roman Lebedev a écrit : > On Sat, Jan 13, 2018 at 2:45 PM, François Patte > <[email protected]> wrote: >> Le 13/01/2018 à 12:02, Roman Lebedev a écrit : >>> On Sat, Jan 13, 2018 at 1:43 PM, François Patte >>> <[email protected]> wrote: >>>> Bonjour, >>>> >>>> I tried to compile darktable on fedora 27 (I had no problem on fedora 25 >>>> or 26) and it fails with this message: >>>> >>>> CMake Error at >>>> /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:137 (message): >>>> Could NOT find LibXml2 (missing: LIBXML2_LIBRARY) (found suitable version >>>> "2.9.4", minimum required is "2.6") >>>> >>>> What can do? libxml2 and libxml2-devel are installed. >>> Purge the build dir, run cmake, and do show all the console starting >>> with purging the build dir. >>> >> >> Ok! fine! This solved the problem... > As usual. > >> 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.
Following my last answer, I disabled the in integrated video card in the bios, but the message is still there. Will it be some damage in the treatment of photos? And, if yes, what can I do? 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
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