2.5.50 / ALSA: sound cutouts when playing from hd

2.5.50 / ALSA: sound cutouts when playing from hd

Post by CaT » Sun, 01 Dec 2002 04:10:05

I seem to be on a roll today. :)

Whenever I play an mp3 from HD I get sound cutouts. I can't really say
when exactly is happening but putting the mpg into ram by running

dd if=mp3 of=/dev/null

until no disc activity occurs seems to solve the issues. The laptop is a
p3-700, 128meg free ram, 44 bytes of swap usage and the following is
reported by hdparm:

 multcount    = 16 (on)
 I/O support  =  1 (32-bit)
 unmaskirq    =  1 (on)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 nowerr       =  0 (off)
 readonly     =  0 (off)
 readahead    = 256 (on)
 geometry     = 2584/240/63, sectors = 39070080, start = 0
 busstate     =  1 (on)


 Model=TOSHIBA MK2016GAP, FwRev=U0.30 A, SerialNo=X0B70560T
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=46
 BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=16
 CurCHS=17475/15/63, CurSects=16513875, LBA=yes, LBAsects=39070080
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio1 pio2 pio3 pio4
 DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4
 AdvancedPM=yes: unknown setting WriteCache=enabled
 Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5

This does not happen with the CD-ROM drive and it's not happening now
with another mp3 (sigh...) but I have had this happen quite a few times

As usual, if you want any more info, please holler.

        All people are equal,
        But some are more equal then others.
            - George W. Bush Jr, President of the United States
              September 21, 2002 (Abridged version of security speech)
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1. ALSA with CONFIG_SND_SB16_CSP compiling problems in 2.5.50


I think it's just typing error.

--- sound/isa/sb/sb16.c.orig    Thu Nov 28 21:54:22 2002

        /* CSP chip on SB16ASP/AWE32 */
-       if ((chip->hardware == SB_HW_16) && csp[dev]) {
+       if ((chip->hardware == SB_HW_16CSP) && csp[dev]) {
                snd_sb_csp_new(chip, synth != NULL ? 1 : 0, &xcsp);
                if (xcsp) {
                        chip->csp = xcsp->private_data;

And here is problem with CONFIG_SND_SB16_CSP turned on,
I think it must be something like this

--- sound/isa/sb/sb16.c.orig    Thu Nov 28 22:28:07 2002

        static unsigned __initdata nr_dev = 0;
        int __attribute__ ((__unused__)) pnp = INT_MAX;
-       int __attribute__ ((__unused__)) csp = INT_MAX;

        if (nr_dev >= SNDRV_CARDS)

 #ifdef __ISAPNP__
        if (pnp != INT_MAX)
                isapnp[nr_dev] = pnp;
-       if (csp != INT_MAX)
-               csp[nr_dev] = csp;
        return 1;
I can mistake.
Best regards.

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