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When I downloaded the Linux version of Lizzie I realised that I had no support for my GPU (Nvidia Geforce 750M) in my Suse Linux installation. I could not at first find the right driver or how to install it, so I decided to use a CPU-only LZ. For that on Linux I had to build it myself, but the latest release ( 0.17) failed to build ( bug 2378). I therefore followed the instructions to build the current version (git clone etc.), changing config.h to specify CPU-only. This was successful, though I had a bit of a struggle to get all the necessary headers, in particular /usr/include/qt5/QtWidgets/ (and therein QShortcut). This comes from package libQt5Widgets-devel, which was not listed in the instructions, as far as I could see. I believe some of the other needed packages were not quite 1-to-1 with the instructions, but were pretty obvious.
I then decided to try to get the GPU working, and studied the Nvidia support site. I added the nvidia repository in Yast and installed a bunch of packages, including nvidia-computeG05, nvidia-gfxG05-kmp-default, nvidia-glG05 and x11-video-nvidiaG05 (having previously had no luck with the G04 version). To install x11-video-nvidiaG05 I had to remove libOpenCL1 and ocl-icd-devel, which I did.
I did not pay much attention to how to use it in X11 as I only really cared about using it from Leela Zero, not sure if that was a mistake.
After rebooting, at first the window system behaved very oddly, but after some Linux updates and logging out and in (żor another reboot?) it settled down. I configured Lizzie to use the GPU version of new LZ and it worked, and was about 2˝ times as fast as the CPU version, as measured by the number of variations analysed in a minute on an empty board (7.8k as against 3.2k at each hoshi). (Though I thought CPU had turned out faster than GPU on MSW.) The CPU version is reported as using 650% out of 800% CPU.
I then (c. 2019-06) noticed some odd behaviour in Linux: my battery was always reported as 44% full (MS Windows said 45%, as of 2019-10-03 it is down to 6%!) and the system stopped dead if I unplugged it to run on battery only. Moreover, if I suspended and resumed (without unplugging), LZ stopped immediately if it had been started by Lizzie.
Since MSW and Linux saw the same behaviour in the battery, I suspected something was damaged or at least changed in the battery or the BIOS and had no idea what to do about it, apart from asking in some forum. Since I almost always used the laptop plugged in at home, I did not seem to have an urgent problem, and did not get round to the forums.
2020-01-29: A week or two ago I noticed that my battery was reported as charging, and it seems to have started behaving quite normally again. I can work with the laptop unplugged and it seems to go down at a normal rate. I can only guess that someone somewhere, probably at Nvidia, discovered and corrected a bug.
2020-06-22: Have not been here for some time, but sad to say, the bug has reappeared, and I still have no idea what is going on.
2021-04-02 Upgraded to Leap 15.2. Various packages in disabled repositories removed by upgrade!
2021-04-03 Rebuilt KataGo. Had to re-install GNU C++ for that. Also installed beignet, a CPU-only implementation of OpenCL; GPU not currently available via OpenCL.
2021-04-03 Rebuilt LeelaZero. Had to install various development packages (including libQt5Widgets-devel ) and append .0 to BLAS_openblas_LIBRARY:FILEPATH=/usr/lib64/libopenblas.so in generated CMakeCache.txt .