Re: Linux Sound Issues
Paul,
(...) that is skips whenever I do anything that requires CPU
resources. I've tried recompiling the kernel to make it more
efficient and I've tried using the latest drivers from Creative.
Mmh, it's probably just your IDE drive which is *not* accessed in DMA
mode. At least, that's what caused sound problems on my system. Before
playing around with low latency and preemtive kernel patches, try
the following:
Run hdparm -d {drive} and check wheter or not DMA mode is activated
for your drive. If DMA mode is not activated, try hdparm -d 1 {drive}.
If hdparm is unable to enable DMA mode, chances are that your kernel
does not support your IDE chipset. Run lspci and make sure your kernel
was compiled with support for both your chipset and DMA mode.
Regards, Remo
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Re: Linux Sound Issues
Hmm, I think hdparm did the trick... turin:~# hdparm -t /dev/hdb /dev/hdb: Timing buffered disk reads:8 MB in 3.76 seconds = 2.13 MB/sec turin:~# hdparm -d1 /dev/hdb /dev/hdb: setting using_dma to 1 (on) using_dma= 1 (on) turin:~# hdparm -t /dev/hdb /dev/hdb: Timing buffered disk reads: 106 MB in 3.01 seconds = 35.22 MB/sec I thought of messing around with hdparm, never realized how easy it was. So far I haven't noticed any audio skipping when playing movies in kplayer or playing mp3s while running find and apt-cache search at the same time and didn't hear any skipping. Although I've heard that enabling DMA on VIA686B could cause data corruption and that's why it's disabled by default, I guess I'm willing to take the risk. A very big thank you to everyone that helped me. = - Paul Burkett __ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Linux Sound Issues
On Sat, Nov 29, 2003 at 04:37:08PM -0800, Paul Burkett wrote: snip Could it be ext3 is just a lot slower than ext2 and can't handle it? Is there anything I can do to tweak this? Or should I move onto XFS or ResierFS? Should I buy a new sound card? Should I try ALSA? Any suggestions would be helpful. Thanks again guys and gals. System Info: snip *more* than adequate hardware I use alsa with an SB live value (5.1), also on ext3, and I don't have this problem... I get a hiccup or two during an apt[-get|itude] install, but not much else will make it skip. So you might want to try alsa... OR It might be your HD settings... check hdparm, and make sure that uhh... DMA (I think that's the parameter) is enabled. Your hardware is twice as fast as mine, twice as much RAM, so it may be the ALSA difference (no idea how likely that is) or it may be that something's hitting your HD performance pretty hard... But it's definitely not a question of needing more processor, RAM, or sound card. Cheers! -- ,-. -ScruLoose- | I don't want to start any blasphemous rumours Please |but I think that God's got a sick sense of humour do not Cc me. | - Depeche Mode `-' pgp0.pgp Description: PGP signature
Re: Linux Sound Issues
Paul Burkett wrote: I've been having a helluva time to get sound working decently in Linux. The issue isn't so much quality (though I do notice a slight difference in quality compared to Windows, nothing to complain about) but that fact that is skips whenever I do anything that requires CPU resources. I've tried recompiling the kernel to make it more efficient and I've tried using the latest drivers from Creative. It doesn't skip as much but there are times when it does skip when playing an mp3. Usually it happens when I'm running any apt tools. Now I don't know if it is so much the fault of the CPU (an AMD Tbird 1GHz) or the soundcard (a POS SB Live), but I do notice kjournald running in the background when I check it out using top. Could it be ext3 is just a lot slower than ext2 and can't handle it? Is there anything I can do to tweak this? Or should I move onto XFS or ResierFS? Should I buy a new sound card? Should I try ALSA? Any suggestions would be helpful. Thanks again guys and gals. System Info: AMD 1GHz Thunderbird 512MB of RAM Running KDE Ext3 Filesystem Kernel 2.4.22 compiled for i686 Debian Unstable 40GB Maxtor 740DX HDD Dedicated to Linux SB Live! Sound Card (OEM) Via686B Chipset (Abit KT7A-RAID MB) AFAIK I didn't have this problem in Mandrake 8 but that was so long ago. Hi, Paul I also have the same card, 1.3Ghz processor and ATA 100 disk and it does eventually hik up now and then... I'm ussing the OSS drivers. I think we have to fidlle with the priorities of the prog. processing sound. I use noatun. Still didn't have time to think about this subject but I think I'll give it a try. I'll post if anything comes out of this ... John -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Linux Sound Issues
El sábado, 29 de noviembre de 2003, a las 16:37, Paul Burkett escribió: Should I buy a new sound card? Should I try ALSA? Any suggestions Yes, you should try ALSA. You also can try recompiling your kernel including one (or both) low latency patches. As you are running unstable, you can easily do this using make-kpkg, as the patches are packaged. $ apt-cache show kernel-patch-2.4-lowlatency kernel-patch-2.4-preempt Regards, Ismael -- `Tout fourmille de commentaries; d'autheurs il en est grande cherté.' signature.asc Description: Digital signature
Re: Linux Sound Issues
Paul Burkett wrote: I've been having a helluva time to get sound working decently in Linux. The issue isn't so much quality (though I do notice a slight difference in quality compared to Windows, nothing to complain about) but that fact that is skips whenever I do anything that requires CPU resources. I may be way off, of course, but I ran into this problem and it had nothing to do with sound but with the fact that did not have VIA82CXXX enabled under IDE, ATA and ATAPI Block Devices. Result was that with any disk access the disk would hang for seconds and the sound would stop. You might look into that too... Hugo -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Linux Sound Issues
I've been having a helluva time to get sound working decently in Linux. The issue isn't so much quality (though I do notice a slight difference in quality compared to Windows, nothing to complain about) but that fact that is skips whenever I do anything that requires CPU resources. I've tried recompiling the kernel to make it more efficient and I've tried using the latest drivers from Creative. It doesn't skip as much but there are times when it does skip when playing an mp3. Usually it happens when I'm running any apt tools. Now I don't know if it is so much the fault of the CPU (an AMD Tbird 1GHz) or the soundcard (a POS SB Live), but I do notice kjournald running in the background when I check it out using top. Could it be ext3 is just a lot slower than ext2 and can't handle it? Is there anything I can do to tweak this? Or should I move onto XFS or ResierFS? Should I buy a new sound card? Should I try ALSA? Any suggestions would be helpful. Thanks again guys and gals. System Info: AMD 1GHz Thunderbird 512MB of RAM Running KDE Ext3 Filesystem Kernel 2.4.22 compiled for i686 Debian Unstable 40GB Maxtor 740DX HDD Dedicated to Linux SB Live! Sound Card (OEM) Via686B Chipset (Abit KT7A-RAID MB) AFAIK I didn't have this problem in Mandrake 8 but that was so long ago. = - Paul Burkett __ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
