Hiccups

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Hiccups

Postby txlogic » Wed Feb 16, 2005 8:25 pm

Howdy,

Got sound, got mixer, but with volume turned up a bit, alas, the sound is not pure -- I distinctly hear very quick, intermittent little "hiccups" every few seconds. Sound quality is very good between the hiccups. Any suggestions?

TXLogic
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Artifacts

Postby majost » Sat Feb 19, 2005 8:16 pm

I have a similar issue in the form of clicks. I have found it to be an IRQ conflict between my NVidia driver/video card and OSS/sound card.

Ideally, I would like to simply tell OSS to force the card to work on a specified IRQ.... but I am not sure how to do this just yet.
majost
 

Re: Artifacts

Postby txlogic » Sat Feb 19, 2005 11:15 pm

majost wrote:I have a similar issue in the form of clicks. I have found it to be an IRQ conflict between my NVidia driver/video card and OSS/sound card.

Ideally, I would like to simply tell OSS to force the card to work on a specified IRQ.... but I am not sure how to do this just yet.


"Clicks" works as a description of what I hear as well. I've also suspected an IRQ conflict, but haven't had time to try to chase it down (not that I'm sure I'd know exactly what to do if I found one! :shock:). Hey Dev, do have any wisdom for us?

TXLogic
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Re: Artifacts

Postby dev » Sun Feb 20, 2005 1:07 am

txlogic wrote:
majost wrote:I have a similar issue in the form of clicks. I have found it to be an IRQ conflict between my NVidia driver/video card and OSS/sound card.

Ideally, I would like to simply tell OSS to force the card to work on a specified IRQ.... but I am not sure how to do this just yet.


"Clicks" works as a description of what I hear as well. I've also suspected an IRQ conflict, but haven't had time to try to chase it down (not that I'm sure I'd know exactly what to do if I found one! :shock:). Hey Dev, do have any wisdom for us?

TXLogic


Please upgrade your FreeBSD drivers - we fixed a problem with ISA memory allocation and this affects Envy24 based soundcards.

The only thing I can recommend is try booting with acpi turned off - this prevents the BIOS from loading up all devices under the same irq. ALso
you need to ensure that DMA is turned on on your hard disk.


best regards
Dev Mazumdar
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Re: Artifacts

Postby txlogic » Sat Feb 26, 2005 12:43 am

dev wrote:
txlogic wrote:
majost wrote:I have a similar issue in the form of clicks. I have found it to be an IRQ conflict between my NVidia driver/video card and OSS/sound card.

Ideally, I would like to simply tell OSS to force the card to work on a specified IRQ.... but I am not sure how to do this just yet.


"Clicks" works as a description of what I hear as well. I've also suspected an IRQ conflict, but haven't had time to try to chase it down (not that I'm sure I'd know exactly what to do if I found one! :shock:). Hey Dev, do have any wisdom for us?

TXLogic


Please upgrade your FreeBSD drivers - we fixed a problem with ISA memory allocation and this affects Envy24 based soundcards.

I had already done so, to no avail.

The only thing I can recommend is try booting with acpi turned off - this prevents the BIOS from loading up all devices under the same irq. ALso
you need to ensure that DMA is turned on on your hard disk.

best regards
Dev Mazumdar

Once again you're the man with the answers, Dev. Sound is now quite clear and beautiful -- neither clicky or hiccupy. But what have I lost by completely disabling ACPI? (Also, I couldn't find any setting for DMA in the BIOS -- but everything seems fine. Should I be concerned?)

TXLogic
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Re: Artifacts

Postby dev » Sat Feb 26, 2005 4:36 am

Once again you're the man with the answers, Dev. Sound is now quite clear and beautiful -- neither clicky or hiccupy. But what have I lost by completely disabling ACPI? (Also, I couldn't find any setting for DMA in the BIOS -- but everything seems fine. Should I be concerned?)

TXLogic


The only thing you lose by disabling ACPI is suspend/resume and power management that I don't think is even applicable for desktops - it's useful for notebooks. But even in the case of notebooks, there's no suspend to disk support in FreeBSD yet.


best regards
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Re: Artifacts

Postby txlogic » Sat Mar 05, 2005 1:35 am

dev wrote:
Once again you're the man with the answers, Dev. Sound is now quite clear and beautiful -- neither clicky or hiccupy. But what have I lost by completely disabling ACPI? (Also, I couldn't find any setting for DMA in the BIOS -- but everything seems fine. Should I be concerned?)

TXLogic


The only thing you lose by disabling ACPI is suspend/resume and power management that I don't think is even applicable for desktops - it's useful for notebooks. But even in the case of notebooks, there's no suspend to disk support in FreeBSD yet.

best regards
Dev Mazumdar

Alas, my joy was rather short-lived -- the clicks seem eventually to return. Sound is great right after I startup, and indeed seem to remain that way as long as xmms is running. But if I quit xmms and restart it later, it seems that something else has horned in on the relevant IRQ, and the pops and clicks are back. Is there a way to find out what else is vying for that IRQ?

TXLogic
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Re: Artifacts

Postby txlogic » Sun Apr 10, 2005 12:03 am

txlogic wrote:
dev wrote:
Once again you're the man with the answers, Dev. Sound is now quite clear and beautiful -- neither clicky or hiccupy. But what have I lost by completely disabling ACPI? (Also, I couldn't find any setting for DMA in the BIOS -- but everything seems fine. Should I be concerned?)

TXLogic


The only thing you lose by disabling ACPI is suspend/resume and power management that I don't think is even applicable for desktops - it's useful for notebooks. But even in the case of notebooks, there's no suspend to disk support in FreeBSD yet.

best regards
Dev Mazumdar

Alas, my joy was rather short-lived -- the clicks seem eventually to return. Sound is great right after I startup, and indeed seem to remain that way as long as xmms is running. But if I quit xmms and restart it later, it seems that something else has horned in on the relevant IRQ, and the pops and clicks are back. Is there a way to find out what else is vying for that IRQ?

TXLogic

Update: Since my last major portupgrade (which included upgrading to KDE 3.4) my SB Live! card functions beautifully, and I am able to control the volume via software mixers.

TXLogic
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