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== Looking Glass Client ==
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->
===== Fedora 29+ =====For audio support in Bleeding Edge, the following packages should also be installed:
<code>yum 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-libEGL-devel</code>PipeWire users:
Either visit the site at [https://looking<syntaxhighlight lang=bash>dnf install dkms kernel-devel kernel-glass.hostfission.comheaders</downloads Looking Glass Download Page]syntaxhighlight >
Or pull the lastest using the '''git''' command== OpenSuSE Leap 15.<code>git clone https://github.com/gnif/LookingGlass.git</code>0+ ==
If you downloaded the file via the web link then you should have a 'zip' file. Simply unzip and cd into the new directory. If you used 'git' then cd into the 'LookingGlass' directory. <pre style="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>== Tumbleweed ===
;NOTE: The most common compile error is related to backtrace support this can be disabled by adding the following option to the <syntaxhighlight lang=bash>zypper in binutils-devel clang cmake command. '''dejavu-sans-mono-fonts fontconfig-devel gcc gcc-c++ glibc-all-langpacks libdecor-devel libglvnd-DENABLE_BACKTRACE=0'''. devel libnettle-devel libpulse-devel libsamplerate-devel libSDL2-devel libSDL2_ttf-devel libvulkan1 libwayland-egl-devel libxkbcommon-devel libXpresent-devel libXrandr-devel libXScrnSaver-devel libXss-devel make Mesa-libGLESv3-devel nettle-devel pipewire-devel pkgconf-pkg-config pkgconfig spice-protocol-devel vulkan-loader wayland-devel zlib-devel-static</syntaxhighlight >
Should this all go well you should be left with the file '''looking-glass-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.== Arch Linux / Manjaro ==
'''If you are using QEMU directly, this does not apply to you.'''<syntaxhighlight lang=bash>pacman -Syu dkms linux-headers</syntaxhighlight >
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="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><shmem name='looking-glass'> <model typeVoid Linux ='ivshmem-plain'/> <size unit='M'>32</size></shmem></pre>
The memory size (show as 32 in the example above may need to === Installing Dependencies === <!-- Dependencies must match Debian's order, and extra dependencies must be adjusted as per [[Installation#Determining_Memory|Determining Memory]] section.on another line, with a consistent order --><syntaxhighlight lang=bash>xbps-install -Syu binutils-devel cmake freefont-ttf fontconfig-devel SDL2-devel SDL2_ttf-devel spice-protocol libX11-devel libXpresent-devel libXinerama-devel nettle-devel \ gcc make pkg-config</syntaxhighlight>
The memory size (show as 32 in the example above may need to be adjusted as per [[Installation#Determining_Memory|Determining Memory]] section.== Proxmox ==
<pre style="white-space: pre-wrap; white-space: -moz* A working Proxmox install on a computer with 2 GPU's (Tested with 7.1-pre-wrap; 6)white* A Windows VM with GPU pass-space: -pre-wrap; through working (Tested with Win 10)white* A Linux VM with GPU pass-space: -o-pre-wrap; word-wrap: break-word;">width x height x 4 x 2 = total bytestotal bytes / 1024 / 1024 = total megabytes + 2through working (Tested With Ubuntu 21.10)</pre>* Proxmox Host Installed and running on the Windows VM
For exampleDuring Proxmox 7 lifecycle they shipped a newer OVMF firmware than tested, for a resolution and breaks '''kvmfr''' module. Currently the workaround is to use an older version of 1920x1080 (1080p)it:
<pre style="white apt install pve-space: preedk2-wrap; white-space: -moz-pre-wrap; white-space: firmware=3.20220526-pre-wrap; 1white apt-space: mark hold pve-oedk2-pre-wrap; word-wrap: break-word;">1920 x 1080 x 4 x 2 = 16,588,800 bytes16,588,800 / 1024 / 1024 = 15.82 MB + 2 = 17.82</pre>firmware
You must round this value up For Proxmox 8, the current pve-edk2-firmware version 3.20230228-4 is tested to the nearest power of two, which work with kvmfr 0.0.9 with Linux 6.4.3 in Linux VM. If you used the workaround mentioned above example would be 32MB, you can revert it by:
It is suggested that you create the shared memory file before starting the VM with the appropriate permissions for your system, this only needs to be done once at boot time, for example (this is a sample script only, do not use this without altering it for your requirements): apt-mark unhold pve-edk2-firmware apt full-upgrade
<code>touch /dev/shm/looking-glass && chown user:kvm /dev/shm/looking-glass && chmod 660 /dev/shm/looking-glass</code>=== Windows VM setup ===
== Looking Glass Service (Using the Proxmox GUI, Set the Windows) ==VM Display to "none"
A signed Windows 10 driver can [spice port] should be obtained from Red Hat for this device from the below address:replaced by a tcp port not in use.
https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/upstream-virtio/Boot the Windows VM
Please note that you must obtain version 0.1.161 or later=== Linux VM setup ===
== Running Follow the Official Looking-glass documentation on how to Build Looking-Glass Client ==- https://looking-glass.io/docs/B5.0.1/build/#building
The client command is Follow the binary fileOfficial Looking-glass documentation on how to install the kernel module - https: '''//looking-glass-client'''. This command should run after the Windows Host Application has startedio/docs/B5.0. 1/module/
For an updated list of arguments visit:https://github.com/gnif/LookingGlass/blob/master/client/README.md === Running Looking-Glass ===
Common options include '# 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** -s' p **spice port specified**</syntaxhighlight> === Using vGPU merged driver to run Looking Glass on Proxmox Host === This currently only work for disabling spiceWindows 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-S' for disabling **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 screen saverfollowing line in VM config file:<syntaxhighlight lang=bash>ivshmem: size=32, 'name=**WINDOWS-F' VMID**</syntaxhighlight>This will override Proxmox to automatically enter full screen 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>-kspice 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 correct permissions for them (/etc/tmpfile.d was having reliability issue on my machine for IVSHMEM file, and it cannot override socket file' to disable s ownership at all): <syntaxhighlight lang=bash># 3rd party script, created by the UPScommunity, not part of Looking Glass project!# Assuming you have set up a storage named `local-btrfs` and is mounted at `/var/lib/pve/FPS ratelocal-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>
→Tumbleweed: Add missing xkbcommon dependency (Package 'xkbcommon', required by 'virtual:world', not found)
===== 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 >
<syntaxhighlight lang===== OpenSuSE Leap 15.0+ =====bash>dnf install pipewire-devel libsamplerate-devel</syntaxhighlight>
PulseAudio users:<codesyntaxhighlight lang=bash>zypper dnf install make cmake binutils-devel libSDL2-devel libSDL2_ttf-devel libnettle-devel nettle spice-protocol-devel fontconfig-devel libX11pulseaudio-devel libconfiglibs-devel libwayland-egllibsamplerate-devel</codesyntaxhighlight>
==== Downloading =Installing Additional Dependencies for Kernel Module Build ===
==== Building Installing Dependencies === <!-- Dependencies must match Debian's order, and extra dependencies must be on another line, with a 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-egl-devel nettle</syntaxhighlight >
For Tumbleweed this should do the trick:
=== Installing Dependencies for Client Build ===
<!-- Dependencies must match Debian's order, and extra dependencies must be on another line, with a consistent order -->
<syntaxhighlight lang=bash>
pacman -Syu cmake gcc libgl libegl fontconfig spice-protocol make nettle pkgconf binutils \
libxi libxinerama libxss libxcursor libxpresent libxkbcommon wayland-protocols \
ttf-dejavu libsamplerate
</syntaxhighlight>
=== libvirt Configuration Installing Additional Dependencies for Kernel Module Build ===----This article assumes you already have a fully functional libvirt VM with PCI Passthrough working on a dedicated monitor. If you do not please ensure this is configured before you proceed.
==Gentoo = Qemu Commands ===----Add the following to the commands to your QEMU command line, adjusting the bus to suit your particular configuration: <pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">-device ivshmem-plain,memdev=ivshmem,bus=pcie.0 \-object memory-backend-file,id=ivshmem,share=on,mem-path=/dev/shm/looking-glass,size=32M</pre>
=== Installing Dependencies ===
First set up the necessary USE flags if needed:
<syntaxhighlight lang=bash>
echo "media-libs/libsdl2 gles2" >> /etc/portage/package.use/libsdl2
echo "media-libs/nettle gmp" >> /etc/portage/package.use/nettle
</syntaxhighlight>
Then fetch the packages:
<!-- Dependencies must match Debian's order, and extra dependencies must be on another line, with a consistent order -->
<syntaxhighlight lang=bash>
emerge sys-devel/binutils dev-util/cmake media-fonts/freefonts media-libs/libsdl2 media-libs/sdl2-ttf app-emulation/spice-protocol \
media-libs/fontconfig dev-libs/nettle media-libs/libsamplerate \
media-libs/glu
</syntaxhighlight>
This list can also be placed into a setfile in /etc/portage/sets/ so that they can be updated with
<syntaxhighlight lang=bash>
emerge @setfile
</syntaxhighlight>
=== Determining Memory Prerequisites ===----You will need to adjust the memory size to a value that is suitable for your desired maximum resolution using the following formula:
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= Installing the IVSHMEM Driver 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' -Windows will not prompt for a driver for the IVSHMEM devicevirtio-serial-pci -chardev spicevmc,id=vdagent, instead it will use a default null (do nothing) driver for the name=vdagent -devicevirtserialport,chardev=vdagent,name=com.redhat.spice. To install the IVSHMEM driver you will need to go into 0</syntaxhighlight>The -device manager and update the driver for the virtio-mouse-pci -device "PCI standard RAM Controller" under the "System Devices" nodevirtio-keyboard-pci are not strictly necessary but should reduce input latency.
In a shell to the Proxmox host edit the Linux VM Config:<syntaxhighlight lang=== Using 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 Windows Host Application 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=32MThere is a page dedicated to setting up </syntaxhighlight>Then boot the Linux VM, and download the Windows Host Servicelatest Looking-glass source from https://looking-glass.io/downloads (Tested with version B5. [[Windows_Host_Application|Windows Host Application]]0.1)
