Public bug reported: I have an Intel i5 (Skylake) based laptop. (With a Geforce 940m that I'm not using for the purpose of this bug report). I installed intel-opencl- icd to make use of the Intel NEO opencl driver in Darktable.
When I use Darktable in combination with the Intel NEO driver for a few minutes, the complete system freezes. The screen remains on, but the system does not react to either CTRL-ALT-DEL, CTRL-backspace or CTRL- ALT-SYSREQ-BUSIER. The freeze does not occur when the intel-opencl-icd package is not installed. I viewed dmesg and temperature sensors in parallel with the usage of darktable. No messages from dmesg, temperatures of the CPU are between 50-55 degrees, which seems no issue. I also don't suspect power usage, as I can use the Nvidia GPU while gaming without problems (CPU also gets much hotter then). I tried a newer version from https://github.com/intel/compute-runtime/, but it shows the same problem. Kernel version is 5.0.0-20-generic ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: intel-opencl-icd 19.13.12717-0ubuntu1 ProcVersionSignature: Ubuntu 5.0.0-20.21-generic 5.0.8 Uname: Linux 5.0.0-20-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.10-0ubuntu27.1 Architecture: amd64 CurrentDesktop: KDE Date: Sun Jul 21 22:19:13 2019 InstallationDate: Installed on 2016-02-03 (1264 days ago) InstallationMedia: Error: [Errno 13] Permission denied: '/var/log/installer/media-info' SourcePackage: intel-compute-runtime UpgradeStatus: Upgraded to disco on 2019-05-13 (69 days ago) ** Affects: intel-compute-runtime (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug disco -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1837334 Title: Intel Opencl freezes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-compute-runtime/+bug/1837334/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
