Bug 99021 - HDMI crackling/distorted sound AMD radeon 290X
Summary: HDMI crackling/distorted sound AMD radeon 290X
Status: RESOLVED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Jaroslav Kysela
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-05-27 10:27 UTC by Daniele Peruzzi
Modified: 2015-05-27 14:19 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.0.4
Subsystem:
Regression: No
Bisected commit-id:

Attachments
dmesg output (73.95 KB, text/plain)
2015-05-27 10:27 UTC, Daniele Peruzzi 		Details
lspci output (21.65 KB, text/plain)
2015-05-27 10:28 UTC, Daniele Peruzzi 		Details
aplay output (966 bytes, text/plain)
2015-05-27 10:29 UTC, Daniele Peruzzi 		Details
Test fix patch (651 bytes, patch)
2015-05-27 10:47 UTC, Takashi Iwai 		Details | Diff
dmesg output after patch and after disabled my workaround (71.23 KB, text/plain)
2015-05-27 13:34 UTC, Daniele Peruzzi 		Details
Revised patch (664 bytes, patch)
2015-05-27 13:37 UTC, Takashi Iwai 		Details | Diff
dmesg output after the patch solved my issue (71.35 KB, text/plain)
2015-05-27 14:15 UTC, Daniele Peruzzi 		Details
Show Obsolete (1) Add an attachment (proposed patch, testcase, etc.)

Description Daniele Peruzzi 2015-05-27 10:27:27 UTC 
Created attachment 178051 [details]
dmesg output

I'm experiencing crackling/distorted sound output using my AMD 290X via HDMI cable.
I found as a workaround to set an alsa-base.conf in /etc/modprobe.d as follow:

options snd_hda_intel snoop=0

Is that the correct way to fix the issue?



My configuration is

- linux kernel 4.0.4
- alsa-firmware/alsa-lib/alsa-plugins/alsa-tools/alsa-utils 1.0.29
- mesa 10.5.6


Thanks
Comment 1 Daniele Peruzzi 2015-05-27 10:28:58 UTC 
Created attachment 178061 [details]
lspci output
Comment 2 Daniele Peruzzi 2015-05-27 10:29:44 UTC 
Created attachment 178071 [details]
aplay output
Comment 3 Takashi Iwai 2015-05-27 10:47:23 UTC 
Could you try the patch below?
Comment 4 Takashi Iwai 2015-05-27 10:47:45 UTC 
Created attachment 178081 [details]
Test fix patch
Comment 5 Daniele Peruzzi 2015-05-27 13:32:29 UTC 
I tried the patch against a vanilla 4.0.4 kernel and it didn't work, audio corruption still there.
Comment 6 Daniele Peruzzi 2015-05-27 13:34:59 UTC 
Created attachment 178111 [details]
dmesg output after patch and after disabled my workaround
Comment 7 Takashi Iwai 2015-05-27 13:37:13 UTC 
Sorry, the patch was wrong.  It should be ATIHDMI_NS.  The fixed one is attached below.
Comment 8 Takashi Iwai 2015-05-27 13:37:32 UTC 
Created attachment 178121 [details]
Revised patch
Comment 9 Daniele Peruzzi 2015-05-27 14:12:51 UTC 
Ok, it worked that time, this last patch corrects my issue with hdmi audio and my 290X, thanks.
Comment 10 Daniele Peruzzi 2015-05-27 14:15:06 UTC 
Created attachment 178131 [details]
dmesg output after the patch solved my issue
Comment 11 Takashi Iwai 2015-05-27 14:19:50 UTC 
Great, I'm going to queue the fix.  It'll be backported to stable kernels once when merged to Linus tree.
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