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makmake</presyntaxhighlight>
Fixed highlighting and added back missing character
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 stylesyntaxhighlight lang="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"bash>
mkdir client/build
cd client/build
cmake ../
;NOTE: The most common compile error is related to backtrace support this can be disabled by adding the following option to the cmake command. '''-DENABLE_BACKTRACE=0''', however, if you disable this and need support for a crash please be sure to use gdb to obtain a backtrace manually or there is nothing that can be done to help you.
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 stylesyntaxhighlight lang="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"xml>
<shmem name='looking-glass'>
<model type='ivshmem-plain'/>
<size unit='M'>32</size>
</shmem>
</presyntaxhighlight>
The memory size (show as 32 in the example above may need to be adjusted as per [[Installation#Determining_Memory|Determining Memory]] section.
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; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"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
</presyntaxhighlight>
The memory size (show as 32 in the example above may need to be adjusted as per [[Installation#Determining_Memory|Determining Memory]] section.
You will need to adjust the memory size to a value that is suitable for your desired maximum resolution using the following formula:
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"code>
width x height x 4 x 2 = total bytes
total bytes / 1024 / 1024 = total megabytes + 2
</precode>
For example, for a resolution of 1920x1080 (1080p)
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"code>
1920 x 1080 x 4 x 2 = 16,588,800 bytes
16,588,800 / 1024 / 1024 = 15.82 MB + 2 = 17.82
</precode>
You must round this value up to the nearest power of two, which with the above example would be 32MB
