I've got a Dell 4000 Inspiron notebook with built in SMC IR
(set to slow). I've got LIRC 0.6.4 installed under Red Hat 7.2 (stock
kernel) using the "lirc_sir" module, and everything works perfectly.
I've got a couple of remote controls that I've mapped out, so everything
seems to be great. But unfortunately, when I play an mp3 file from the
command line (with xaudio or mpg123) the "irw" and "mode2" programs do
not send any codes to stdout. Basically my IR becomes completely
unresponsive. Has anyone else had this? I'm guessing perhaps the sound
card is conflicting/hogging? But that uses IRQ 9 and a different I/O
address, so I'm a bit lost.. Any ideas anyone?
Thanks for any help.
From: Milan WWW Pikula <www@te...> - 2002-01-31 06:59:26
it's probably due to lost interrupts from the serial port (due to HDD
or soundcard usage), or due to buffer overruns, when application (mode2)
doesn't respond to codes for a long period of time.
1) look whether your mp3 player has realtime priority, and set it to
2) try to renice mode2 (in shell, you can do
renice -20 $$
before starting mode2 app)
if any of these helps, you are suffering from buffer overruns
3) set 32bit hdd access (hdparm -c 1 /dev/your_disk_device)
4) decrease the sample rate, force mono, use 8bit output
and if it helps, you have problem with interrupts and might have to
find another sound card / driver.
Milan Pikula, http://www. Finger me for Geek Code.
.. dajte mi pevnu linku a pohnem zemegulou ..
Shane Lilley "shane.lilley@..." wrote:
> everything seems to be great. But unfortunately, when I play an mp3
> file from the command line (with xaudio or mpg123) the "irw" and
> "mode2" programs do not send any codes to stdout. Basically my IR
> becomes completely unresponsive. Has anyone else had this?
There are known problems with IrDA and sound on some Dell notebooks. Try
reading the linux-irda mailing list archive. I don't remember anymore if
the problem was actually solved.