Mozilla causes errors on sound system

[tony j. podrasky]

O/S: RedHat 3.0 AS

Platform: HP Kayak / Visualize

Problem: If I'm playing sounds on the system,
and I access Mozilla, and slide the mouse around, chunks of the song will disappear.
This also happens if Mozilla is updating the
display on its own (so it isn't a mouse issue).

will have the following error:

Sound: DMA (output) timed out - IRQ/DRQ config error?

/proc/interrupts shows the sound on INTR 5
and video on INTR9.

/proc/ioport shows sound on 0500-050f and
video on 7800-78ff

I don't know if this is related, but in the sound card has an entry of dma=0, dma2=1 - but /proc/ioport only has entries for dma1 and dma2.

regards,
tonyp

[Steven E. Protter]

It never happens when other programs are running.

It sounds like a conflict between video and sound. I don't know how I'd pin that on mozilla.

But, anything is possible so. Make sure mozilla is on the latest release, and report the bug to mozilla.

I think there is however a fair chance that other programs can trigger this problem.

SEP

[tony j. podrasky]

It only happens with Mozilla.

I feel that Mozilla is sending stuff to the sound card - even though I have the option turned off.

I've beaten up the video card by running multiple instances of xscreensaver demo on it, banged the memory with mallocs and callocs, forced the machine into hi paging contention, and brought the CPU to a crawl running multiple copies of my prime number generator.

Nothing phases it - but reboot the system into single luser to maximize the amount of free resources, fire up the support for X, and run Mozilla, play a .wav or .mp3, and move the mouse and the problem occurs.

regards,
tonyp

[Steven E. Protter]

Sounds like a case for bugzilla.

I've had issues with Kayak's and the sound card and Red Hat. As in it not working at all.

You might want to do a support call with HP on the hardware software combination.

SEP

[tony j. podrasky]

Thanx for the feedback.

I'll have to upgrade to a current version of Mozilla before I file a report under Bugzilla (I'm running 1.4).

Interesting enough, another part of the
problem with the mouse is sometimes when
you open a page, (like to reply to e-mail)
you can't type anything until you take the
mouse off the page, and then roll it back
onto the page. Weird.

If you are still playing with a Kayak, if
want, e-mail me and I'll send you a copy of
my file, along with the
output from . ad1816.o is the sound
module I'm using. Works fine with .wav and mp3,
but I haven't done the work to get the MIDI
stuff going - because I have no need.

regards,
tonyp - Sandy Eggo, California
(858) 541-7343

[tony j. podrasky]

Oh - the e-mail is

tony.podrasky@hp.com

[Ragu_3]

Tony, I suspect that mozilla, when it probes for an audio device does not find one in the /dev point and maybe goes into an endless search loop. Have your tried and fixed all your audio issues without mozilla running? Please do a "MAKEDEV update" inside /dev and do an lsmod and ascertain that all the sound modules have been loaded properly. Btw, what is the kernel version that you are using?

[tony j. podrasky]

I don't know why Mozilla wants to play
with the sound stuff.

And I can't say how well I had the sounds
problems resolved: When Mozilla is quiescent
there are no problems with sound.

Saying I have the sound set up properly is
a whole 'nother issue: sound support is very
poor under RedHat 3.0 AS. In fact, I had to
pull in the drivers from my RedHat 6.2
release and compile them under the 2-4-21.4EL
kernel to get sound running.

regards,
tonyp