# HG changeset patch
# User rubidium <rubidium@openttd.org>
# Date 1257181461 0
# Node ID 6da28bcbe3b27fc4de8c4284062482673ab77d63
# Parent  37fb6e7b7eb9eceeb1c376f57eb8cf823c59bdd0
(svn r17956) -Document: CPU usage issues with SDL-ALSA-PulseAudo

diff --git a/known-bugs.txt b/known-bugs.txt
--- a/known-bugs.txt
+++ b/known-bugs.txt
@@ -122,3 +122,10 @@
 	makes the impact of fixing the bug enormously small against the
 	amount of work needed to write a system that prevents the lost trains
 	from taking the wrong direction.
+
+Extreme CPU usage when using SDL and PulseAudio
+	OpenTTD can be extremely slow/use a lot of CPU when the sound is
+	played via SDL and then through PulseAudio's ALSA wrapper. This setup
+	seems to be the default configuration for Ubuntu 9.04 and later. This
+	issue can be solved by installing the 'libsdl1.2debian-pulseaudio'
+	package from Ubuntu's Universe repository.