Changes

This guide will step you through building the The [https://looking -glass client on .io/docs/stable/install Official Documentation] contains installation instructions for Debian -based systems from sourcedistributions and should work fine on derivatives. The following are supplemental guides for other distributions, before you attempt to which do this you should have a basic understanding how to use not work using the shellDebian instructions.

=== Building the Application ===<!--Debian example for reference. Do not include --==== Build Dependancies ====!

* apt-get install binutils-dev* cmake* fonts-freefont-ttf* libsdl2libfontconfig1-dev* libsdl2-ttflibegl-dev* libspice-protocol-dev* libfontconfig1nettle-dev* libx11-devlibxi-dev libxinerama-dev libxss-dev libwayland-dev wayland-protocols* nettle-dev->

===== Debian (and maybe Ubuntu) ===Fedora 35+ ==

=== Installing Dependencies for Client Build === <!-- Dependencies must match Debian's order, and extra dependencies must be on another line, with a consistent order --><codesyntaxhighlight lang=bash> aptdnf install cmake gcc gcc-c++ libglvnd-devel fontconfig-devel spice-protocol make nettle-get install devel \ pkgconf-pkg-config binutils-dev cmake fontsdevel libXi-devel libXinerama-devel libXcursor-devel \ libXpresent-devel libxkbcommon-freefontx11-ttf libsdl2devel wayland-dev libsdl2devel wayland-ttfprotocols-dev libspicedevel \ libXScrnSaver-protocoldevel libXrandr-dev libfontconfig1devel dejavu-dev libx11sans-dev nettlemono-devfonts</codesyntaxhighlight >

<codesyntaxhighlight lang=bash>yum dnf install make cmake binutils-devel SDL2-devel SDL2_ttf-devel nettle-devel spice-protocol fontconfig-devel libX11-devel egl-wayland-devel wayland-devel mesa-libGLU-devel mesa-libGLES-devel mesa-libGL-devel mesa-libEGLlibdecor-devel</codesyntaxhighlight>

<syntaxhighlight lang==== Downloading ====bash>dnf install pipewire-devel libsamplerate-devel</syntaxhighlight>

Either visit the site at [httpsPulseAudio users://looking<syntaxhighlight lang=bash>dnf install pulseaudio-libs-devel libsamplerate-glass.hostfission.comdevel</downloads Looking Glass Download Page]syntaxhighlight>

<syntaxhighlight lang==== Building ====bash>dnf install dkms kernel-devel kernel-headers</syntaxhighlight >

If you downloaded the file via the web link then you should have a 'zip' file== OpenSuSE Leap 15. Simply unzip and cd into the new directory. If you used 'git' then cd into the 'LookingGlass' directory. <pre style0+ =="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">mkdir buildcd buildcmake ../make</pre>

Should this all go well you should === Installing Dependencies === <!-- Dependencies must match Debian's order, and extra dependencies must be left on another line, with the file '''lookinga consistent order --><syntaxhighlight lang=bash>zypper install binutils-devel make cmake fontconfig-devel libSDL2-devel libSDL2_ttf-devel spice-protocol-devel libX11-devel libnettle-devel wayland-protocols-devel \ libconfig-devel libXi-devel libXss-devel libwayland-glassegl-client'''. Before you run the client you will first need to configure either Libvirt or Qemu (whichever you prefer) and then setup the Windows side service.devel nettle</syntaxhighlight >

'''If you are using QEMU directly, For Tumbleweed this does not apply to you.'''should do the trick:

<syntaxhighlight lang=== libvirt Configuration ===bash>zypper in binutils-devel clang cmake dejavu-sans-mono-Add the following to the libvirt machine configuration inside the 'devices' section by running "virsh edit VM" where VM is the name of your virtual machine.<pre style="whitefonts fontconfig-devel gcc gcc-c++ glibc-all-langpacks libdecor-devel libglvnd-devel libnettle-devel libpulse-devel libsamplerate-devel libSDL2-devel libSDL2_ttf-devel libvulkan1 libwayland-egl-devel libxkbcommon-space: predevel libXpresent-wrap; whitedevel libXrandr-space: devel libXScrnSaver-mozdevel libXss-predevel make Mesa-wrap; whitelibGLESv3-space: devel nettle-predevel pipewire-wrap; whitedevel pkgconf-space: pkg-oconfig pkgconfig spice-preprotocol-wrap; worddevel vulkan-wrap: breakloader wayland-word;"><shmem name='lookingdevel zlib-glass'> <model type='ivshmemdevel-plain'/> <size unit='M'>32</size></shmem>static</presyntaxhighlight >

=== Qemu Commands Installing Dependencies for Client Build === <!--Dependencies must match Debian's order, and extra dependencies must be on another line, with a consistent order --Add the following to the commands to your QEMU command line, adjusting the bus to suit your particular configuration: ><pre stylesyntaxhighlight lang="white-space: pre-wrap; bash>whitepacman -space: Syu cmake gcc libgl libegl fontconfig spice-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; protocol make nettle pkgconf binutils \word libxi libxinerama libxss libxcursor libxpresent libxkbcommon wayland-wrap: break-word;">-device ivshmem-plain,memdev=ivshmem,bus=pcie.0 protocols \ ttf-object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32Mdejavu libsamplerate</presyntaxhighlight>

==Void Linux = Determining Memory ===----You will need to adjust the memory size to a value that is suitable for your desired maximum resolution using the following formula:

=== Installing Dependencies === <pre style="white!-- Dependencies must match Debian's order, and extra dependencies must be on another line, with a consistent order -space: pre-wrap; ><syntaxhighlight lang=bash>whitexbps-install -space: Syu binutils-mozdevel cmake freefont-prettf fontconfig-wrap; whitedevel SDL2-space: devel SDL2_ttf-predevel spice-wrap; whiteprotocol libX11-space: devel libXpresent-odevel libXinerama-predevel nettle-wrap; devel \word gcc make pkg-wrap: break-word;">width x height x 4 x 2 = total bytestotal bytes / 1024 / 1024 = total megabytes + 2config</presyntaxhighlight>

=== Installing Dependencies ===First set up the necessary USE flags if needed:<pre stylesyntaxhighlight lang=bash>echo "media-libs/libsdl2 gles2" >> /etc/portage/package.use/libsdl2echo "whitemedia-spacelibs/nettle gmp" >> /etc/portage/package.use/nettle</syntaxhighlight>Then fetch the packages: pre-wrap; white <!-space: -mozDependencies must match Debian's order, and extra dependencies must be on another line, with a consistent order -pre-wrap; ><syntaxhighlight lang=bash>whiteemerge sys-space: devel/binutils dev-preutil/cmake media-wrap; whitefonts/freefonts media-libs/libsdl2 media-space: libs/sdl2-ottf app-preemulation/spice-wrap; protocol \word media-libs/fontconfig dev-wrap: breaklibs/nettle media-libs/libsamplerate \ media-word;"libs/glu</syntaxhighlight>1920 x 1080 x 4 x 2 = 16,588,800 bytes16,588,800 This list can also be placed into a setfile in /etc/portage/ 1024 sets/ 1024 so that they can be updated with <syntaxhighlight lang= 15.82 MB + 2 = 17.82bash>emerge @setfile</presyntaxhighlight>

<code>* A working Proxmox install on a computer with 2 GPU's (Tested with 7.1-6)touch /dev/shm/looking* A Windows VM with GPU pass-glass && chown user:kvm /dev/shm/looking-glass && chmod 660 /dev/shm/lookingthrough working (Tested with Win 10)* A Linux VM with GPU pass-glassthrough working (Tested With Ubuntu 21.10)</code>* Proxmox Host Installed and running on the Windows VM

apt install pve-edk2-firmware=== Installing the IVSHMEM Driver ===3.20220526-1 apt-mark hold pve-edk2--Windows will not prompt for a driver for the IVSHMEM device, instead it will use a default null (do nothing) driver for the device. To install the IVSHMEM driver you will need to go into device manager and update the driver for the device "PCI standard RAM Controller" under the "System Devices" node.firmware

A signed Windows 10 driver For Proxmox 8, the current pve-edk2-firmware version 3.20230228-4 is tested to work with kvmfr 0.0.9 with Linux 6.4.3 in Linux VM. If you used the workaround mentioned above, you can be obtained from Red Hat for this device from the below addressrevert it by:

[https://fedorapeople.org/groups/virt/virtio apt-win/directmark unhold pve-downloads/upstreamedk2-virtio/]firmware apt full-upgrade

=== Using the Proxmox GUI, Set the Windows Host Application === ----There is a page dedicated VM Display to setting up the Windows Host Service. [[Windows_Host_Application|Windows Host Application]]."none"

Then in a shell to the Proxmox host edit the Windows VM Config:<syntaxhighlight lang=bash>nano /etc/pve/qemu-server/**YOUR-WINDOWS-VM-ID**.conf</syntaxhighlight>And add the following arguments to the args: line. If the args: line doesn't exist, create it at the top of the config.<syntaxhighlight lang=bash>-device ivshmem-plain,memdev=ivshmem,bus=pcie.0 -object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32M -device virtio-mouse-pci -device virtio-keyboard-pci -spice 'addr=0.0.0.0,port=[spice port],disable-ticketing=on' -device virtio-serial-pci -chardev spicevmc,id=vdagent,name=vdagent -device virtserialport,chardev=vdagent,name=com.redhat.spice.0</syntaxhighlight>The -device virtio-mouse-pci -device virtio-keyboard-pci are not strictly necessary but should reduce input latency. [spice port] should be replaced by a tcp port not in use. Boot the Windows VM === Linux VM setup === In a shell to the Proxmox host edit the Linux VM Config:<syntaxhighlight lang=bash>nano /etc/pve/qemu-server/**YOUR-LINUX-VM-ID**.conf</syntaxhighlight>And add the arguments to the args: line. If the args: line doesn't exist, create it at the top of the config. <syntaxhighlight lang=bash>-device ivshmem-plain,memdev=ivshmem,bus=pcie.0 -object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32M</syntaxhighlight>Then boot the Linux VM, and download the latest Looking-glass source from https://looking-glass.io/downloads (Tested with version B5.0.1) Follow the Official Looking-glass documentation on how to Build Looking-Glass Client - https://looking-glass.io/docs/B5.0.1/build/#building Follow the Official Looking-glass documentation on how to install the kernel module - https://looking-glass.io/docs/B5.0.1/module/ === Running Looking-Glass === # Make sure both VMs are running.# On the Linux VM, open a terminal and cd to the looking glass client build folder# Run Looking-Glass with:<syntaxhighlight lang=bash> ./looking-glass-client -f /dev/kvmfr0 -c **Your_Proxmox_Host_IP** -p **spice port specified**</syntaxhighlight> === Using vGPU merged driver to run Looking Glass on Proxmox Host === This currently only work for Windows guest, as Looking Glass Linux Host is immature at the moment. You can simplify the guest set up by replacing the IVSHMEM settings in <code>args</code> with the following line:<syntaxhighlight lang=bash>ivshmem: size=32</syntaxhighlight>This will create a 32M IVSHMEM file under <code>/dev/shm/pve-shm-**VMID**</code>. You will need to point <code>app:shmFile</code> to this file when launching LG client. If you want to run a Linux VM with GPU passthrough, but also being able to LG into this Windows guest in addition to from Proxmox host, you can add the following line in VM config file:<syntaxhighlight lang=bash>ivshmem: size=32,name=**WINDOWS-VMID**</syntaxhighlight>This will override Proxmox to open <code>/dev/shm/pve-shm-**name**</code> instead, and since the default for **name** is **VMID**, set that to your Windows's VMID does the trick. Additionally you can use UNIX socket for SPICE instead of opening another port on Proxmox. This file cannot be accessed by Linux guest so only do this if you don't need access Looking Glass from another VM.<syntaxhighlight lang=bash>-spice unix=on,addr=/run/lg**YOUR-WINDOWS-VM-ID**.socket,disable-ticketing=on</syntaxhighlight> However, those 2 files will be created as root-owned. You will need to create a hook script to set the Client correct permissions for them (/etc/tmpfile.d was having reliability issue on my machine for IVSHMEM file, and it cannot override socket file's ownership at all): <syntaxhighlight lang=bash># 3rd party script, created by the community, not part of Looking Glass project!# Assuming you have set up a storage named `local-btrfs` and is mounted at `/var/lib/pve/local-btrfs`wget https://github.com/MakiseKurisu/single-node-homelab/raw/c6daee9c242571977a0af9088c4d7360dd309685/ansible/proxmox-init/pve-helper -O /var/lib/pve/local-btrfs/snippets/pve-helperchmod +x /var/lib/pve/local-btrfs/snippets/pve-helperqm set $VMID --hookscript=local-btrfs:snippets/pve-helperecho "#lg-chown user" >> /etc/pve/qemu-server/$VMID.conf</syntaxhighlight>