[alsa-devel] Intel HDA digital out distortion
Hi,
On Monday 23 July 2007 23:09:24 Ingmar Stieger wrote:
a couple of weeks ago, I bought an ASUS mainboard with integrated Intel HDA and an AD1988B codec. Unfortunately, the digital / SPDIF output gets distorted with stock 1.0.14 drivers. It does not matter what the volume levels of the various mixers are set to.
I have the same issues.
Any sound is distorted through spdif output (seems more pronounced with low frequencies.)
Sound is not distorted: - using passthough (playing AC3) - when volume is set to the very minimal (no perceptible distortion) - with analog output
My motherboard: ASUS P5B deluxe with integrated soundchip Kernel: 2.6.22 Alsa: Intel HD audio kernel built module asound.conf: http://pastebin.com/f2c54b47b
I think I might have found the source for this problem. Maybe it's only a workaround, but it solved the issue and digital out now works fine for me, so I thought I'd share.
The patch worked for me, no more distortion :) Thanks for sharing, Alex.
At Wed, 3 Oct 2007 22:18:46 +0200, pr0t0cod7 wrote:
Hi,
On Monday 23 July 2007 23:09:24 Ingmar Stieger wrote:
a couple of weeks ago, I bought an ASUS mainboard with integrated Intel HDA and an AD1988B codec. Unfortunately, the digital / SPDIF output gets distorted with stock 1.0.14 drivers. It does not matter what the volume levels of the various mixers are set to.
I have the same issues.
Any sound is distorted through spdif output (seems more pronounced with low frequencies.)
Sound is not distorted:
- using passthough (playing AC3)
- when volume is set to the very minimal (no perceptible distortion)
- with analog output
My motherboard: ASUS P5B deluxe with integrated soundchip Kernel: 2.6.22 Alsa: Intel HD audio kernel built module asound.conf: http://pastebin.com/f2c54b47b
I think I might have found the source for this problem. Maybe it's only a workaround, but it solved the issue and digital out now works fine for me, so I thought I'd share.
The patch worked for me, no more distortion :) Thanks for sharing, Alex.
Could you check whether the problem got fixed with ALSA 1.0.15rc3?
thanks,
Takashi
Le Tue, 09 Oct 2007 11:49:30 +0200, Takashi Iwai tiwai@suse.de a écrit :
At Wed, 3 Oct 2007 22:18:46 +0200, pr0t0cod7 wrote:
Hi,
On Monday 23 July 2007 23:09:24 Ingmar Stieger wrote:
a couple of weeks ago, I bought an ASUS mainboard with integrated Intel HDA and an AD1988B codec. Unfortunately, the digital / SPDIF output gets distorted with stock 1.0.14 drivers. It does not matter what the volume levels of the various mixers are set to.
I have the same issues.
Any sound is distorted through spdif output (seems more pronounced with low frequencies.)
Sound is not distorted:
- using passthough (playing AC3)
- when volume is set to the very minimal (no perceptible
distortion)
- with analog output
My motherboard: ASUS P5B deluxe with integrated soundchip Kernel: 2.6.22 Alsa: Intel HD audio kernel built module asound.conf: http://pastebin.com/f2c54b47b
I think I might have found the source for this problem. Maybe it's only a workaround, but it solved the issue and digital out now works fine for me, so I thought I'd share.
The patch worked for me, no more distortion :) Thanks for sharing, Alex.
Could you check whether the problem got fixed with ALSA 1.0.15rc3?
thanks,
Takashi
Works perfect with 1.0.15rc3.
Thanks, Alex.
participants (2)
-
pr0t0cod7 -
Takashi Iwai