Date: Mon, 13 Nov 2000 08:39:43 +0800 From: "James Lim" <jameslpin@pacific.net.sg> To: "Justin Hawkins" <justin@hawkins.dropbear.id.au>, <freebsd-questions@FreeBSD.ORG> Subject: Re: USB CD burner problems Message-ID: <003701c04d0a$378be2a0$c35f78cb@gchang> References: <Pine.BSF.4.21.0011130949230.60530-100000@tardis.everard.bogus>
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Hi there! Could you cut and paste the exact scsi error msgs that you received? That would help us to understand the problem more! Regards, James Lim ----- Original Message ----- From: Justin Hawkins <justin@hawkins.dropbear.id.au> To: <freebsd-questions@FreeBSD.ORG> Sent: Monday, November 13, 2000 7:37 AM Subject: USB CD burner problems > Hi, > > I bought a USB CD burner a while ago, internally the drive is a > Teac. I had a lot of problems with the USB ports on my Windows > box's motherboard (it's a Pentium MMX, it has USB headers but not > the actual ports, and of course they are proprietory). I ended up > buying a USB PCI card and putting it in there. Well I'm sure you > don't care too much about my Windows problems, but the short of it > is it didn't work with the PCI card - it would burn for a while > then the drive would appear to reset and I'd get a bunch of SCSI > errors. > > Now this box is underpowered compared to the minimum specs, but I > don't hold much truck with them :-) > > Anyway in light of my failure, I decided to try it my FreeBSD box > (which is only a 486-100!). After moving the PCI card and (slowly) > compiling in USB support, I'm happy to say it detected the drive > and mounted pre-recorded disks no problem. This is 4.2-BETA. > > I compiled up the cdrecord port and gave it a test. It seemed to > have exactly the same problem! It maybe went a bit further, but > then the drive would clunk, and I'd get SCSI errors. This would > actually be quite bad as it would (I didn't narrow down the exact > circumstances) in some places completely crash the box - I think > it was after unplugging the drive after it reset. > > I'm starting to think at this stage that the drive was faulty, but > I took it to a friend with on-motherboard USB ports and it worked > flawlessly. > > So I guess what I'm asking is do I *really* need a PII-266 as the > burner box suggests? It seems ludicrous that you need something > like that to send just 150K/second to a device. > > In all my tests I eventually downgraded to burning at 1x and never > (in either Windows software or cdrecord) did I see the buffer go > under 95% > > Other information that may be important, PCI USB card (the only > common factor in my problems) has a VIA 83C572 chipset, it uses > the uhci device: > > usb0: <VIA 83C572 USB controller> on uhci0 > usb0: USB revision 1.0 > > Does anyone think this could be the problem? > > Thanks for any help anyone can offer. > > Regards, > > Justin > > -- > Justin Hawkins --> justin@hawkins.dropbear.id.au > "Don't sweat it -- it's only 1's and 0's" > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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