Bug 32723 - No Bass on Sound Blaster Live (emu10k1 chip) on 2.4.x kernel
Summary: No Bass on Sound Blaster Live (emu10k1 chip) on 2.4.x kernel
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 7.1
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact: Brock Organ
: 36217 (view as bug list)
Depends On:
TreeView+ depends on / blocked
Reported: 2001-03-22 17:55 UTC by Tommy McNeely
Modified: 2007-04-18 16:32 UTC (History)
2 users (show)

Clone Of:
Last Closed: 2001-04-27 15:27:55 UTC

Attachments (Terms of Use)
Untested patch to make the makefile hack a module option (7.60 KB, patch)
2001-04-10 16:36 UTC, Arjan van de Ven
no flags Details | Diff

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2001:084 normal SHIPPED_LIVE Kernel: Kernel: 2001-06-21 04:00:00 UTC

Description Tommy McNeely 2001-03-22 17:55:52 UTC
From Bugzilla Helper:
User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.4.2-0.1.28 i586)

The Tone control is not present in the Sound Blaster Live module in the 2.4
kernel...  Therefore there is no bass while playing sounds... such as
Tried both OSS and ESOUND.

Reproducible: Always
Steps to Reproduce:
1. load a stock RPM kernel (say 2.4.2-0.1.28)
2. play a sound (say in xmms)
3. no BASS!
(also no tone control in aumix)

Actual Results:  NO BASS

Expected Results:  Normal Sounding MP3s

I was told that if I added a -DTONE_CONTROL to the EXTRA_CFLAGS in the
Makefile in /usr/src/linux-2.4/drivers/sound/emu10k1 ... that it fixes the

While this is an interesting workaround.. I don't think that RedHat would
release software in which to make my soundcard work properly I have to
recompile kernel modules. :)

BTW, IT DOES WORK! (at least it did on the original kernel that came with

Hey, in the mean time.. is there any way to compile ONLY ONE kernel module?
or DO I have to go through the whole process and just not compile the
kernel, only modules.. 

TJ McNeely
Sun Microsystems - RC Americas

Comment 1 Arjan van de Ven 2001-04-07 23:13:30 UTC
Understand that TONE_CONTROL breaks some cards.  Probably needs to be
recoded as a module option.

Comment 2 Tommy McNeely 2001-04-09 19:28:28 UTC
ok..... a kernel module option would be cool...

how do I only compile the emu10k1 module... 

here are the steps I generally follow:

(after installing the latest kernel from up2date)

# cd /usr/src/linux-2.4
# make mrproper
# make menuconfig
(Load Alternate configuration: configs/kernel-2.4.2-i586.config)

# vi drivers/sound/emu10k1/Makefile
(add the EXTRA_CFLAGS += -DTONE_CONTROL  near the top)

# make dep

# make modules && make modules_install

(this takes forever.... I would like to ONLY make the emu10k1 module.. I realize
this has nothing to do with the bug, but it would help as new kernels come out)


# rmmod emu10k1
# modprobe emu10k1

(And voila... bass is back!)

TJ McNeely
Sun Microsystems

Comment 3 Arjan van de Ven 2001-04-09 19:34:25 UTC
Unfortionatly the current "make" system of the kernel does not facilitate for

Comment 4 Tommy McNeely 2001-04-09 20:03:00 UTC
oh well... maybe I just need a faster CPU :)

how much work would it be to make it a module option.. I would be willing to
test it if you let me know where to get it.


Comment 5 Arjan van de Ven 2001-04-09 20:52:42 UTC
Doing the sourcecode changes seems to be about 30 minutes of work.
I cannot do the testing as I don't have the hardware......
Now to find those 30 minutes :)

Comment 6 Arjan van de Ven 2001-04-10 16:36:52 UTC
Created attachment 15065 [details]
Untested patch to make the makefile hack a module option

Comment 7 Tommy McNeely 2001-04-10 19:07:23 UTC

It looks like you found the 30 mins.. and now its my turn. However, you will
have to excuse my ignorance here... I have never really used a patch before (I
usually just download the new source)

I assume I can do the following...
(from fresh code)

# cd /usr/src/
# ln -s linux-2.4 linux
(looks like this is necessary from the path at the top?)
# patch -p0 < /tmp/emu10k1.patch
(this is a SWAG on what I need to do)

Then re-do the make modules && make modules_install...

then add something like this to /etc/modules.conf

options emu10k1 tone_control=1

If you can let me know if this is correct.. I can test to see if it all compiles
and works (modprobe).. but I wont be able to REALLY test it till I get home (as
it is hard to hear my speakers from work :) )

TJ McNeely

Comment 8 Arjan van de Ven 2001-04-10 19:45:15 UTC
You don't need to make the symlink  if you use the "-p1" instead of "-p0" and
run patch in /usr/src/linux-2.4
The module-options look correct.

Debugging this remotely is indeed hard; Debugging xservers by using webcams
is something that we occasionally do however ;)

Comment 9 Tommy McNeely 2001-04-10 19:56:46 UTC
ok... I broke down and read the manpage... I also had an issue with lynx
wrapping the lines.. it is very icky to XHOST netscape through an SSH tunnel oer

# cd /usr/src/linux-2.4/drivers/sound/emu10k1
# patch -b -i /tmp/emu10k1.patch

now compiling (nap time)

Tj McNeely
Sun Microsystems

hmmm... don't get me started on Xservers :) I thought it was pretty cool when
wolverine said I had a laptop LCD and that XXX was the horiz/vert sync rate...
and automatically picked the right resolution 1024x768x16 (and tested OK).. but
wont start... I end up having to run Xconfigurator and choose a Multisync
monitor bla bla.. then it works fine.... if I dont for some reason the X server
thinks that 1024x768 is outside scan range or something... but it tests fine
during the intall? .. btw, how do you get the GOOD monitor probe.. the one that
Xconfigurator uses sucks, the one during install kicks ass. (but then this is
not really related is it) :)

Comment 10 Arjan van de Ven 2001-04-10 20:03:26 UTC
/me does kernels, not xservers ;)

Comment 11 Tommy McNeely 2001-04-11 05:03:58 UTC
(aren't you the lucky one)

Your patch works!! I tried it without the tone_control option and it sounded
tinny.. and was lacking the controls for bass and treble in aumix...

I fixed the modules.conf and rmmod'd it and she-bang.. its back to GOOD! I have
bass and the controls are back in aumix.

I guess we/you should submit that one to the creative opensource thinggy... It
is a good patch. Then we need to get in bed with the sndconf folks to somehow
detect whether it is a GOOD soundblaster live or an EVIL one.. and put the
option in where appropriate.. but if all else fails ... a quick edit of
/etc/modules.conf is soooo much easier than re-compiling all the kernel modules.

TJ McNeely
Sun Microsystems

PS: I will be snowboarding tomorrow... no access to email/bugtraq

Comment 12 Arjan van de Ven 2001-04-18 15:30:25 UTC
*** Bug 36217 has been marked as a duplicate of this bug. ***

Comment 13 Tommy McNeely 2001-04-25 23:59:07 UTC
Ok.... once I finally got the iso's from a mirror (in Austreliia and Costa Rica
I think).. I eagerly installed it to all my machines at work.... the fix for
30772 was in the new release.... but the fix for this one was not part of the
release... how can we make it become part of redhat? or after reading on #36217,
it looks like creative has a MUCH newer version of this module available... how
do we get that into redhat (up2date???)

TJ McNeely

(back to re-compiling kernel mods :( )

Comment 14 Arjan van de Ven 2001-04-26 08:29:38 UTC
The patch was 2 days too late :)
But it will be in the updated kernel we are currently working on. This kernel,
once finished, stable and tested, will be availabe via up2date.

Comment 15 Leos Bitto 2001-04-27 15:27:51 UTC
Creative's driver is at http://opensource.creative.com and now the best thing:
it can be compiled without recompiling the rest of the kernel! So just download
it, uncompress it, make sure that you have kernel sources in /usr/src/linux, do
"make" and "make install" and that's it! It's working for me perfectly with the
default kernel from RH 7.1.

Comment 16 Arjan van de Ven 2001-05-22 09:33:16 UTC
I'm closing this as closed in rawhide as the rawhide kernels have the fix.

Comment 17 Tommy McNeely 2001-05-22 19:12:03 UTC
I tried the previous users suggestion (to use the driver from creative) but it
caused havok on my system... not sure why, but when I tried to play sound, the
system would have a coredump in the dmesg log... and then I could not shut down.
I will try the rawhide kernel (if I can find it)

Tj McNeely

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