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-rw-r--r--pkgs/tools/misc/timidity/default.nix2
-rw-r--r--pkgs/tools/misc/timidity/timidity-iA-Oj.patch14
2 files changed, 16 insertions, 0 deletions
diff --git a/pkgs/tools/misc/timidity/default.nix b/pkgs/tools/misc/timidity/default.nix
index c307c96199f2..88c3c7cb4252 100644
--- a/pkgs/tools/misc/timidity/default.nix
+++ b/pkgs/tools/misc/timidity/default.nix
@@ -8,6 +8,8 @@ stdenv.mkDerivation {
     sha256 = "1xf8n6dqzvi6nr2asags12ijbj1lwk1hgl3s27vm2szib8ww07qn";
   };
 
+  patches = [ ./timidity-iA-Oj.patch ];
+
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ alsaLib libjack2 ncurses ];
 
diff --git a/pkgs/tools/misc/timidity/timidity-iA-Oj.patch b/pkgs/tools/misc/timidity/timidity-iA-Oj.patch
new file mode 100644
index 000000000000..9bb964134283
--- /dev/null
+++ b/pkgs/tools/misc/timidity/timidity-iA-Oj.patch
@@ -0,0 +1,14 @@
+Without this timidity -iA -Oj prints "Couldn't start JACK device (`j')"
+and does not play MIDI.
+
+--- a/timidity/jack_a.c
++++ b/timidity/jack_a.c
+@@ -513,6 +513,8 @@ static int actl_jack(int request, void *arg)
+ 		ringbuf_clear(&ctx->rbuf);
+ 		return 0;
+ 
++	case PM_REQ_PLAY_START:
++		return 0;
+ 	}
+ 	return -1;
+ }