Thanks for your answer. I hope this is a more appropriate description; if not,
let me know. I'm unexperienced, yet eager to learn ;-)
Summary: The following patch (hopefully) fixes bug #2308 for users of STAC9758
For some time now, some users of STAC9758 (emu10k1) would have no sound on
their front channels. This can be fixed (at least for me) by unmuting head
phone volume and setting it to 0dB before removing the "Front Playback"
control. For details, cf.
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2308
Find the appropriate patch attached.
Credits to: Raymond
Signed-off-by: Rolf Stefan Wilke <stefan.wilke@xxxxxxxxxx>
--- alsa-driver-1.0.14rc2.orig/alsa-kernel/pci/emu10k1/emumixer.c 2007-01-15 14:25:27.000000000 +0100
+++ alsa-driver-1.0.14rc2/alsa-kernel/pci/emu10k1/emumixer.c 2007-02-06 18:34:51.000000000 +0100
@@ -1582,6 +1582,7 @@
if (emu->ac97->id == AC97_ID_STAC9758) {
emu->rear_ac97 = 1;
snd_emu10k1_ptr_write(emu, AC97SLOT, 0, AC97SLOT_CNTR|AC97SLOT_LFE|AC97SLOT_REAR_LEFT|AC97SLOT_REAR_RIGHT);
+ snd_ac97_write_cache(emu->ac97, AC97_HEADPHONE, 0x0202);
}
/* remove unused AC97 controls */
snd_ac97_write_cache(emu->ac97, AC97_SURROUND_MASTER, 0x0202);
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