From 603e14c793c2bad1ee87425a23ab4169836ac6e0 Mon Sep 17 00:00:00 2001
From: bb2020 <bb2020@users.noreply.github.com>
Date: Thu, 26 Nov 2020 01:24:15 +0300
Subject: [PATCH] nixos/alsa: disable OSSEmulation by default

OSS Emulation is considered incomplete so disabling it by default.
Using user level alsa-oss library (nix-env -iA nixos.alsaOss) over
this kernel module is recommended.
---
 nixos/doc/manual/release-notes/rl-2103.xml | 5 +++++
 nixos/modules/services/audio/alsa.nix      | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/nixos/doc/manual/release-notes/rl-2103.xml b/nixos/doc/manual/release-notes/rl-2103.xml
index 09455611fba..0458b3564a9 100644
--- a/nixos/doc/manual/release-notes/rl-2103.xml
+++ b/nixos/doc/manual/release-notes/rl-2103.xml
@@ -461,6 +461,11 @@ self: super:
       mouse section.
      </para>
    </listitem>
+   <listitem>
+    <para>
+     ALSA OSS emulation (<varname>sound.enableOSSEmulation</varname>) is now disabled by default.
+    </para>
+   </listitem>
   </itemizedlist>
  </section>
 
diff --git a/nixos/modules/services/audio/alsa.nix b/nixos/modules/services/audio/alsa.nix
index 3fe76a16540..aff3fe2ba42 100644
--- a/nixos/modules/services/audio/alsa.nix
+++ b/nixos/modules/services/audio/alsa.nix
@@ -32,7 +32,7 @@ in
 
       enableOSSEmulation = mkOption {
         type = types.bool;
-        default = true;
+        default = false;
         description = ''
           Whether to enable ALSA OSS emulation (with certain cards sound mixing may not work!).
         '';