VIA KT266 and SBLive! (emu10k1)

VIA KT266 and SBLive! (emu10k1)

[Nix N. Nix]

I understand (not well enough, perhaps) that there are some known
problems with a combination of Via chipset and SBLive!.  Indeed, I have
experienced these myself, in that sometimes, when a sound is about to
play (as when I roll up my GNOME panel), the speakers first emit a burst
of noise (sounds like a can of pop opening) before playing the sound.

On viaarena.com I read about worse problems when running Windows, but
the fact remains that the problems exist.  I was able to reduce the
problem somewhat by following someone's (from Via Arena) recommendation,
namely to move the DBLive! card to PCI slot 3.  The reason behind the
move, accordig to the group is to obtain a unique IRQ for the card. 
Well, my current IRQ setup (according to lspci -v) is as follows:

00:00.0 Host bridge: VIA Technologies, Inc. VT8367 [KT266]
	Subsystem: Asustek Computer, Inc.: Unknown device 8064
	Flags: bus master, medium devsel, latency 0
	Memory at fc000000 (32-bit, prefetchable) [size=32M]
	Capabilities: <available only to root>

00:01.0 PCI bridge: VIA Technologies, Inc. VT8367 [KT266 AGP] (prog-if
00 [Normal decode])
	Flags: bus master, 66Mhz, medium devsel, latency 0
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	Memory behind bridge: ee000000-efdfffff
	Prefetchable memory behind bridge: eff00000-fbffffff
	Capabilities: <available only to root>

00:06.0 Unknown mass storage controller: Promise Technology, Inc. 20265
(rev 02)
	Subsystem: Promise Technology, Inc.: Unknown device 4d33
	Flags: bus master, medium devsel, latency 32, IRQ 9
	I/O ports at d800 [size=8]
	I/O ports at d400 [size=4]
	I/O ports at d000 [size=8]
	I/O ports at b800 [size=4]
	I/O ports at b400 [size=64]
	Memory at ed800000 (32-bit, non-prefetchable) [size=128K]
	Expansion ROM at <unassigned> [disabled] [size=64K]
	Capabilities: <available only to root>

00:0e.0 Multimedia audio controller: Creative Labs SB Live! EMU10000
(rev 05)
	Subsystem: Creative Labs CT4850 SBLive! Value
	Flags: bus master, medium devsel, latency 32, IRQ 5
	I/O ports at b000 [size=32]
	Capabilities: <available only to root>

00:0e.1 Input device controller: Creative Labs SB Live! (rev 05)
	Subsystem: Creative Labs Gameport Joystick
	Flags: bus master, medium devsel, latency 32
	I/O ports at a800 [disabled] [size=8]
	Capabilities: <available only to root>

00:0f.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
(rev 30)
	Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100
	Flags: bus master, medium devsel, latency 32, IRQ 10
	I/O ports at a400 [size=128]
	Memory at ed000000 (32-bit, non-prefetchable) [size=128]
	Expansion ROM at <unassigned> [disabled] [size=128K]
	Capabilities: <available only to root>

00:11.0 ISA bridge: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
	Subsystem: Asustek Computer, Inc.: Unknown device 8052
	Flags: bus master, stepping, medium devsel, latency 0
	Capabilities: <available only to root>

00:11.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06)
(prog-if 8a [Master SecP PriP])
	Flags: bus master, stepping, medium devsel, latency 32, IRQ 11
	I/O ports at a000 [size=16]
	Capabilities: <available only to root>

00:11.2 USB Controller: VIA Technologies, Inc. UHCI USB (rev 1b)
(prog-if 00 [UHCI])
	Subsystem: Unknown device 0925:1234
	Flags: bus master, medium devsel, latency 32, IRQ 9
	I/O ports at 9800 [size=32]
	Capabilities: <available only to root>

00:11.3 USB Controller: VIA Technologies, Inc. UHCI USB (rev 1b)
(prog-if 00 [UHCI])
	Subsystem: Unknown device 0925:1234
	Flags: bus master, medium devsel, latency 32, IRQ 9
	I/O ports at 9400 [size=32]
	Capabilities: <available only to root>

00:11.4 USB Controller: VIA Technologies, Inc. UHCI USB (rev 1b)
(prog-if 00 [UHCI])
	Subsystem: Unknown device 0925:1234
	Flags: bus master, medium devsel, latency 32, IRQ 9
	I/O ports at 9000 [size=32]
	Capabilities: <available only to root>

01:00.0 VGA compatible controller: nVidia Corporation NV11 (rev a1)
(prog-if 00 [VGA])
	Subsystem: Asustek Computer, Inc.: Unknown device 4015
	Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 11
	Memory at ee000000 (32-bit, non-prefetchable) [size=16M]
	Memory at f0000000 (32-bit, prefetchable) [size=128M]
	Expansion ROM at efff0000 [disabled] [size=64K]
	Capabilities: <available only to root>

Unfortunately, the problem still surfaces occasionally.  Can you please
advise me on what I can do to (hopefully) eliminate this problem ?




Thanks.

Re: VIA KT266 and SBLive! (emu10k1)

[Martin Mačok]

On Sat, Jan 26, 2002 at 06:11:53PM -0500, Nix N. Nix wrote:
> I understand (not well enough, perhaps) that there are some known
> problems with a combination of Via chipset and SBLive!.  Indeed, I have
> experienced these myself, in that sometimes, when a sound is about to
> play (as when I roll up my GNOME panel), the speakers first emit a burst
> of noise (sounds like a can of pop opening) before playing the sound.

> problem somewhat by following someone's (from Via Arena) recommendation,
> namely to move the DBLive! card to PCI slot 3.  The reason behind the
> move, accordig to the group is to obtain a unique IRQ for the card. 

> Unfortunately, the problem still surfaces occasionally.  Can you please
> advise me on what I can do to (hopefully) eliminate this problem ?

Wonder if this is related:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=53803

Try changing theese values
-CONFIG_HIGHMEM4G=y
+CONFIG_NOHIGHMEM=y

-CONFIG_SOUND_DMAP=y
+# CONFIG_SOUND_DMAP is not set

I don't know why ... but it just helped me.

(and I think that some have also succeded with i686 kernel instead of
athlon kernel)

-- 
         Martin Mačok                 http://underground.cz/
   martin.macok@underground.cz        http://Xtrmntr.org/ORBman/

Re: VIA KT266 and SBLive! (emu10k1)

[Vincent Bernat]

OoO En cette nuit nuageuse du dimanche 27 janvier 2002, vers 00:11,
"Nix N. Nix" <nix@go-nix.ca> disait:

> 00:0e.0 Multimedia audio controller: Creative Labs SB Live! EMU10000
> (rev 05)
> 	Subsystem: Creative Labs CT4850 SBLive! Value
> 	Flags: bus master, medium devsel, latency 32, IRQ 5
> 	I/O ports at b000 [size=32]
> 	Capabilities: <available only to root>

You may try /sbin/setpci -v -s 00:0e.0 0D.B=40

Check http://www.networking.tzo.com/net/software/readme/faqvl019.htm
and http://www.uwsg.iu.edu/hypermail/linux/kernel/0112.3/0922.html

The first one is a patch for Windows to correct the problem, it is
called "VIA latency patch" since it used to only modify latency. It is
closed source so it is difficult to see if the correction towards the
sound card is about latency (so my command line is useless).

The second one is a post from the author of the corresponding VIA
latency patch under Linux, you may want to try it (and to tweak it if
you don't have a KT266A).

However, the problem seems not IRQ related, so you may want to try
another slots for your sound card.
-- 
Say what you mean, simply and directly.
            - The Elements of Programming Style (Kernighan & Plaugher)

Re: VIA KT266 and SBLive! (emu10k1)

[Nix N. Nix]

On Sat, 2002-01-26 at 19:03, Martin Mačok wrote:
> On Sat, Jan 26, 2002 at 06:11:53PM -0500, Nix N. Nix wrote:
> > I understand (not well enough, perhaps) that there are some known
> > problems with a combination of Via chipset and SBLive!.  Indeed, I have
> > experienced these myself, in that sometimes, when a sound is about to
> > play (as when I roll up my GNOME panel), the speakers first emit a burst
> > of noise (sounds like a can of pop opening) before playing the sound.
> 
> > problem somewhat by following someone's (from Via Arena) recommendation,
> > namely to move the DBLive! card to PCI slot 3.  The reason behind the
> > move, accordig to the group is to obtain a unique IRQ for the card. 
> 
> > Unfortunately, the problem still surfaces occasionally.  Can you please
> > advise me on what I can do to (hopefully) eliminate this problem ?
> 
> Wonder if this is related:
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=53803
> 
> Try changing theese values
> -CONFIG_HIGHMEM4G=y
> +CONFIG_NOHIGHMEM=y
> 
> -CONFIG_SOUND_DMAP=y
> +# CONFIG_SOUND_DMAP is not set

I couldn't find the CONFIG_SOUND_DMAP setting in .config anywhere, so
the only changes I made were to comment out CONFIG_HIMEM and
CONFIG_HIMEM4G, and set CONFIG_NOHIMEM=y

This is vanilla 2.4.17 .



Is that enough ?  Is that what you meant (I'm not as fluent in diff as I
should be) ?

Thanks for the help.

> 
> I don't know why ... but it just helped me.
> 
> (and I think that some have also succeded with i686 kernel instead of
> athlon kernel)
> 
> -- 
>          Martin Mačok                 http://underground.cz/
>    martin.macok@underground.cz        http://Xtrmntr.org/ORBman/
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> 

Re: VIA KT266 and SBLive! (emu10k1)

[Nix N. Nix]

...
> 
> Try changing theese values
> -CONFIG_HIGHMEM4G=y
> +CONFIG_NOHIGHMEM=y
> 
> -CONFIG_SOUND_DMAP=y
> +# CONFIG_SOUND_DMAP is not set

Yep. Seems to work.



Thanks.
> 
> I don't know why ... but it just helped me.
> 
> (and I think that some have also succeded with i686 kernel instead of
> athlon kernel)
> 
> -- 
>          Martin Mačok                 http://underground.cz/
>    martin.macok@underground.cz        http://Xtrmntr.org/ORBman/
> -