Missing c++ headers under alpine clang

I’m trying to build a small alpine-based docker container to build c++ app using clang++. Dockerfile looks like this: FROM alpine:3.10 RUN apk add –no-cache clang But when I’m trying to compile a hello world I’m getting the following error: $ printf ‘#include <iostream>\nint main(){std::cout<<“Hello”<<std::endl;}’ > test.cxx $ clang++ test.cxx -o test test.cxx:1:10: fatal error:…

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Alsa doesn’t recognize soundcards but kernel does

I’ve an issue with alsa which seems not to recognize my soundcards. Before I didn’t have that issue… !!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Mon Jan 6 18:28:00 UTC 2020 !!Linux Distribution !!—————— ID_LIKE=arch !!DMI Information !!————— Manufacturer: Gigabyte Technology Co., Ltd. Product Name: B450M DS3H Product Version: Default string Firmware…

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Ubuntu 16.04 in VirtualBox: very bad performance with VMSVGA

I am currently using Ubuntu 16.04 in VirtualBox version 6.0.14 (macOS host). It works perfectly well with the VBoxVGA graphics controller and 3D acceleration enabled. If I change the graphics controller to VMSVGA then performance becomes very bad. It significantly affects usability. If I change it to VBoxSVGA, it becomes literally unusably slow. VirtualBox 6.1…

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