From d682b50677dde648bf4ff0fca52b9ff8e1d25d09 Mon Sep 17 00:00:00 2001
From: Mamoru TASAKA <mtasaka@fedoraproject.org>
Date: Sun, 1 Aug 2021 21:50:00 +0900
Subject: [PATCH] volumealsa: poll alsa mixer several times at startup

On Fedora 34, the default alsa mixer is replaced by pipewire-alsa.
Very often time, pipewire wakes up later than lxpanel is launched, which
makes alsa mixer not detectable at lxpanel startup.

For workaround, poll mixer several times at lxpanel startup.
---
 plugins/volumealsa/volumealsa.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/plugins/volumealsa/volumealsa.c b/plugins/volumealsa/volumealsa.c
index 5c41051..bf5410b 100644
--- a/plugins/volumealsa/volumealsa.c
+++ b/plugins/volumealsa/volumealsa.c
@@ -963,10 +963,17 @@ static GtkWidget *volumealsa_constructor(LXPanel *panel, config_setting_t *setti
         lxpanel_apply_hotkey(&vol->hotkey_mute, tmp_str, volume_mute, vol, FALSE);
 
     /* Initialize ALSA.  If that fails, present nothing. */
-    if ( ! asound_initialize(vol))
     {
-        volumealsa_destructor(vol);
-        return NULL;
+        int ret = 0;
+        for (int i = 0 ; i < 4 ; i++) {
+            ret = asound_initialize(vol);
+            if (ret) break;
+            usleep(750 * 1000);
+        }
+        if (!ret) {
+            volumealsa_destructor(vol);
+            return NULL;
+        }
     }
 
     /* Allocate top level widget and set into Plugin widget pointer. */
-- 
2.31.1