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dtb 2022-04-24 18:27:34 -04:00
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@ -16,7 +16,7 @@
<SCRIPT SRC="/js/sheets.js" TYPE="application/javascript"></SCRIPT>
<SCRIPT TYPE="application/javascript">window.onload = window.initializesheets;</SCRIPT>
<H1>linux</H1>
<H3>updated 2022-04-23</H3>
<H3>updated 2022-04-24</H3>
<HR ALIGN="left" SIZE="1" WIDTH="25%" />
<H2>ACPI client</H2>
<P>
@ -25,7 +25,6 @@ The usual text program used is <CODE>acpi(1)</CODE>.
</P>
<H2>Alpine</H2>
<H3>Resources</H3>
<UL>
<LI><A HREF="https://pkgs.alpinelinux.org/contents">Alpine repositories content search</A></LI>
</UL>
@ -93,7 +92,6 @@ It's custom for Linux systems to have <CODE>make(1)</CODE> as GNU Make and <CODE
</P>
<H2>Mount LUKS encrypted partitions at boot</H2>
<H3>Sources</H3>
<UL>
<LI><A HREF="https://www.howtoforge.com/automatically-unlock-luks-encrypted-drives-with-a-keyfile/">Automatically Unlock LUKS Encrypted Drives With A Keyfile</A></LI>
<LI><A HREF="https://wiki.gentoo.org/wiki/Dm-crypt">Dm-crypt</A> (Gentoo Wiki)</LI>
@ -127,7 +125,6 @@ Alpine by default uses <CODE>mandoc</CODE>.
</P>
<H2>Partitions and filesystems</H2>
<H3>See also</H3>
<UL>
<LI><A HREF="https://wiki.archlinux.org/title/EFI_system_partition">EFI system partition (Arch Wiki)</A></LI>
<LI><A HREF="https://wiki.artixlinux.org/Main/Installation#Partition_your_disk_.28BIOS.29">Installation#Partition your disk - Artix wiki</A></LI>
@ -207,7 +204,6 @@ You'd be better off using <CODE>ed(1)</CODE>; the UX is very similar.
</P>
<H2>util-linux</H2>
<H3>See also</H3>
<UL>
<LI><A HREF="https://en.wikipedia.org/wiki/Util-linux">util-linux - Wikipedia</A></LI>
</UL>
@ -228,7 +224,6 @@ I haven't had good luck with it but Alpine set it up automatically.
</P>
<H2>X</H2>
<H3>Sources</H3>
<UL>
<LI><A HREF="https://wiki.archlinux.org/title/Xorg">Xorg</A> (Arch Wiki)</LI>
</UL>
@ -237,6 +232,11 @@ X is a graphical windowing system that can be used on Linux, FreeBSD, OpenBSD, N
X is not the only windowing system; <CODE>twin(1)</CODE> exists for windowed multitasking within a framebuffer and Wayland is another windowing system intended to replace X.
</P>
<P>
Xorg requires the user to be a member of the <CODE>input</CODE> and <CODE>video</CODE> groups (or superuser), otherwise it won't be able to access the relevent device files.
These errors look like <CODE>Failed to open /dev/input/event[<I>number</I>] (Permission denied)</CODE> when not in the <CODE>input</CODE> group
and <CODE>Failed to open /dev/tty[<I>number</I>] (Permission denied)</CODE> when not in the <CODE>video</CODE> group.
</P>
<P>
Some Linux software distributions have included scripts to automatically fetch and install an X server.
Alpine has <CODE>setup-xorg-base</CODE>, which adds the packages <CODE>xorg-server</CODE>, <CODE>xf86-input-libinput</CODE>, <CODE>eudev</CODE>, and <CODE>mesa</CODE>, and then enables the OpenRC services for udev.
</P>
@ -256,5 +256,35 @@ the X resource database manager as <CODE>xorg-xrdb</CODE>,
xset as <CODE>xorg-xset</CODE>,
and xsetroot as <CODE>xorg-xsetroot</CODE>.
</P>
<P>Alpine has xinput as <CODE>xinput</CODE>.</P>
<H3>Audio</H3>
<P>
Most audio servers recommend that they be run in userspace with user privileges, with PulseAudio going so far as to exiting when run as root without additional configuration.
The Alpine wiki currently recommends <CODE>pipewire(1)</CODE>, with postmarketOS, which is based on Alpine, coming pre-configured with PipeWire.
PipeWire is relatively new and the typical audio server used is PulseAudio; Debian and many popular Debian-based distributions come pre-configured with PulseAudio.
</P>
<H4>PipeWire</H4>
<UL>
<LI><A HREF="https://wiki.alpinelinux.org/wiki/PipeWire">PipeWire</A> (Alpine Linux Wiki)</LI>
<LI><A HREF="https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/home">PipeWire</A> (FreeDesktop Wiki)</LI>
</UL>
<P>
Provided by the <CODE>pipewire</CODE> package on Alpine.
</P>
<PRE>
RTKit error: org.freedesktop.DBus.Error.ServiceUnknown
</PRE>
<P>
This means you need <CODE>rtkit</CODE> installed and running through your initialization system.
</P>
<H4>PulseAudio</H4>
<P>
<H3>Media</H3>
<P>
<CODE>mpv(1)</CODE> and <CODE>vlc(1)</CODE> are good options.
</P>
</BODY>
</HTML>