Merge pull request #67 from DanielOaks/known-fixes

Initial Known Linux Fixes file

Author: zgrimshell

known_linux_fixes.md

@@ -0,0 +1,47 @@
+# Known Linux Fixes
+
+Fixes for one image will sometimes work for another image if they share the same DE, base distribution, or other supporting software. These are some example fixes that may work, so it's worth looking through this if you're setting up a new image or debugging a common issue with an existing one.
+
+## gdm3
+
+Disable Wayland (SPICE doesn't work well with Wayland, xorg is preferred):
+```
+sed -i "/\[daemon]/a WaylandEnable=false" "$WORK/etc/gdm3/custom.conf"
+```
+
+## GNOME
+
+Disabling sleep, suspend, and hibernating:
+```
+run systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
+```
+
+## KDE
+
+Disable locking:
+```
+cat >"$WORK/etc/skel/.config/kscreenlockerrc" <<EOF
+[Daemon]
+Autolock=false
+LockOnResume=false
+EOF
+```
+
+## LightDM
+
+Logging in automatically, and also logging back in when the Logout button is pressed:
+```
+echo autologin-user=${SHELLS_USERNAME} >> /etc/lightdm/lightdm.conf.d/70-xubuntu.conf
+echo autologin-user-timeout=0 >> /etc/lightdm/lightdm.conf.d/70-xubuntu.conf
+echo session-cleanup-script=pkill -P1 -fx /usr/sbin/lightdm >> /etc/lightdm/lightdm.conf.d/70-xubuntu.conf
+```
+
+## PulseAudio
+
+Fix sound being muted by default:
+```
+cat <<'EOF' >>"$WORK/etc/pulse/default.pa"
+set-sink-volume 0 32768
+set-sink-mute 0 0
+EOF
+```