Re: What happened to DVD writing?
>From: Zaphod Beeblebrox >Subject: Re: What happened to DVD writing? >To: mahle...@yahoo.com >Cc: sta...@freebsd.org >Date: Sunday, September 20, 2009, 9:12 PM > >On Sun, Sep 20, 2009 at 4:35 PM, Richard Mahlerwein wrote: > >> >> I have had several exhibit behavior even more odd. >> >> The most unusual was this particular CD writer... It read both DVDs and CDs >> but would write neither (it had worked fine the week before). I took it out >> of the drive bay and hooked it to another PC to test and it worked fine >> there. I put it back in the original PC and it failed. I was swapping >> things around on that PC (assuming bad cable, bad power, etc) and had it >> sitting loose on the desk and found that it now worked again. Put it back >> in the drive cage and it again would not write, though reading was fine. >> Anyway, I finally figured out that even slight pressure in on the sides >> where it mounts would make it fail to burn CDs. The cage itself exerted a >> bit of pressure and that was enough to make it fail at any attempt to burn a >> CD. >> > >This is not necessarily odd. The CD burner is one of the highest draw bits >in your system... save possibly your CPU and/or graphics card (depending on >what they are). I have found that various DVD drives have been very >sensitive to power supply voltages and fail to burn properly when they're >marginal. Your description here seems to point in that direction. If it >works in computer B, try using B's power supply for A --- or maybe B has >other lighter draws. >Power supplies can also degrade over time --- especially if you have some >cheap capacitors in there. >I find the DVD drive is often the canary for spotting power supply problems. Sorry, the kids woke up from naps and I sent without realizing I hadn't quite finished. Yes, you are completely correct. There was another story where it was a power supply that was inadequate (should have been, but it was aged and seemed to just run out of steam earlier than it used to). Anyway, the point I intended to make and forgot to was that in this case I'd confirm that the DVD drive itself is OK by popping it into another PC, if one is available. If it fails in a different known-OK PC it is likely to be a hardware problem. If it works OK there, try a different power cable on your existing PC, or try swapping out the power supply if you can. You could also try just disconnecting any other power-hungry yet unneeded items temporarily (like additional CD/DVD readers/writers or that old 6x 9GB drive SCSI2 RAID array :), if you have any. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
Re: What happened to DVD writing?
Zaphod Beeblebrox (21:12 2009-09-20): > On Sun, Sep 20, 2009 at 4:35 PM, Richard Mahlerwein wrote: > > > > > I have had several exhibit behavior even more odd. > > > > The most unusual was this particular CD writer... It read both DVDs and CDs > > but would write neither (it had worked fine the week before). I took it out > > of the drive bay and hooked it to another PC to test and it worked fine > > there. I put it back in the original PC and it failed. I was swapping > > things around on that PC (assuming bad cable, bad power, etc) and had it > > sitting loose on the desk and found that it now worked again. Put it back > > in the drive cage and it again would not write, though reading was fine. > > Anyway, I finally figured out that even slight pressure in on the sides > > where it mounts would make it fail to burn CDs. The cage itself exerted a > > bit of pressure and that was enough to make it fail at any attempt to burn a > > CD. > > > > This is not necessarily odd. The CD burner is one of the highest draw bits > in your system... save possibly your CPU and/or graphics card (depending on > what they are). I have found that various DVD drives have been very > sensitive to power supply voltages and fail to burn properly when they're > marginal. Your description here seems to point in that direction. If it > works in computer B, try using B's power supply for A --- or maybe B has > other lighter draws. > > Power supplies can also degrade over time --- especially if you have some > cheap capacitors in there. > > I find the DVD drive is often the canary for spotting power supply problems. Hi, I have the same problem. I can read DVDs and CDs and write CDs, but I'm unable to write DVDs. I can't be sure that it is a software problem, but I think it happened when upgrading from 8.0-BETA2 to 8.0-BETA4. Not sure at all though. Martin ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
Re: What happened to DVD writing?
On Sun, Sep 20, 2009 at 4:35 PM, Richard Mahlerwein wrote: > > I have had several exhibit behavior even more odd. > > The most unusual was this particular CD writer... It read both DVDs and CDs > but would write neither (it had worked fine the week before). I took it out > of the drive bay and hooked it to another PC to test and it worked fine > there. I put it back in the original PC and it failed. I was swapping > things around on that PC (assuming bad cable, bad power, etc) and had it > sitting loose on the desk and found that it now worked again. Put it back > in the drive cage and it again would not write, though reading was fine. > Anyway, I finally figured out that even slight pressure in on the sides > where it mounts would make it fail to burn CDs. The cage itself exerted a > bit of pressure and that was enough to make it fail at any attempt to burn a > CD. > This is not necessarily odd. The CD burner is one of the highest draw bits in your system... save possibly your CPU and/or graphics card (depending on what they are). I have found that various DVD drives have been very sensitive to power supply voltages and fail to burn properly when they're marginal. Your description here seems to point in that direction. If it works in computer B, try using B's power supply for A --- or maybe B has other lighter draws. Power supplies can also degrade over time --- especially if you have some cheap capacitors in there. I find the DVD drive is often the canary for spotting power supply problems. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
Re: What happened to DVD writing?
On Sun, 20 Sep 2009, Richard Mahlerwein wrote: This drive has probably written under 50 DVDs, all ISOs used for backup. It's a Lite-On DH-20A4P bought in August 2008. It's looking like the drive itself has failed. Which seems odd, since I thought it could still burn CDs. I have had several exhibit behavior even more odd. The most unusual was this particular CD writer... It read both DVDs and CDs but would write neither (it had worked fine the week before). I took it out of the drive bay and hooked it to another PC to test and it worked fine there. I put it back in the original PC and it failed. I was swapping things around on that PC (assuming bad cable, bad power, etc) and had it sitting loose on the desk and found that it now worked again. Put it back in the drive cage and it again would not write, though reading was fine. Anyway, I finally figured out that even slight pressure in on the sides where it mounts would make it fail to burn CDs. The cage itself exerted a bit of pressure and that was enough to make it fail at any attempt to burn a CD. It does appear to be hardware failure. A web search suggests that this drive has two separate lasers, so DVD writing failing while CD writing still works is believable. Sorry for the noise, and thanks to everyone for the suggestions. -Warren Block * Rapid City, South Dakota USA___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
Re: What happened to DVD writing?
>From: Warren Block >Subject: Re: What happened to DVD writing? >Date: Sunday, September 20, 2009, 2:58 PM >>On Sun, 20 Sep 2009, Zaphod Beeblebrox wrote: >>> >>> FreeBSD lightning 7.2-STABLE FreeBSD 7.2-STABLE #0: Sun Sep 20 07:25:58 MDT >>> 2009 r...@lightning:/usr/obj/usr/src/sys/LIGHTNING i386 >>> >>> Now growisofs starts, but appears to never manage to write to the DVD. It's >>> a DVD-R, one from the same batch that has worked before: >>> >>> 0.77% done, estimate finish Sun Sep 20 07:55:57 2009 >>> >>> and there it stops. Rebooting is needed, and the machine can't quite bring >>> itself to shut down after syncing buffers. /var/log/messages: >>> >> Another possibility is that the drive is worn out. DVD writers have a >> limited lifespan largely measured by the number of disks they cut. > >This drive has probably written under 50 DVDs, all ISOs used for backup. >It's a Lite-On DH-20A4P bought in August 2008. It's looking like the >drive itself has failed. Which seems odd, since I thought it could >still burn CDs. I have had several exhibit behavior even more odd. The most unusual was this particular CD writer... It read both DVDs and CDs but would write neither (it had worked fine the week before). I took it out of the drive bay and hooked it to another PC to test and it worked fine there. I put it back in the original PC and it failed. I was swapping things around on that PC (assuming bad cable, bad power, etc) and had it sitting loose on the desk and found that it now worked again. Put it back in the drive cage and it again would not write, though reading was fine. Anyway, I finally figured out that even slight pressure in on the sides where it mounts would make it fail to burn CDs. The cage itself exerted a bit of pressure and that was enough to make it fail at any attempt to burn a CD. -Rich ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
Re: What happened to DVD writing?
Hi, On 20 Sep 2009, at 19:58, Warren Block wrote: [...]This drive has probably written under 50 DVDs, all ISOs used for backup. It's a Lite-On DH-20A4P bought in August 2008. It's looking like the drive itself has failed. Which seems odd, since I thought it could still burn CDs. Have you tried a cleaning disk on it? -- Bob Bishop r...@gid.co.uk ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
Re: What happened to DVD writing?
On Sun, 20 Sep 2009, Zaphod Beeblebrox wrote: FreeBSD lightning 7.2-STABLE FreeBSD 7.2-STABLE #0: Sun Sep 20 07:25:58 MDT 2009 r...@lightning:/usr/obj/usr/src/sys/LIGHTNING i386 Now growisofs starts, but appears to never manage to write to the DVD. It's a DVD-R, one from the same batch that has worked before: 0.77% done, estimate finish Sun Sep 20 07:55:57 2009 and there it stops. Rebooting is needed, and the machine can't quite bring itself to shut down after syncing buffers. /var/log/messages: Sep 20 07:42:44 lightning kernel: acd0: FAILURE - READ_BUFFER ILLEGAL REQUEST as c=0x24 ascq=0x00 Sep 20 07:42:46 lightning kernel: acd0: FAILURE - MODE_SELECT_BIG ILLEGAL REQUEST asc=0x24 ascq=0x00 Sep 20 07:42:56 lightning kernel: acd0: FAILURE - READ_TOC ILLEGAL REQUEST asc=0x24 ascq=0x00 Sep 20 07:43:25 lightning kernel: acd0: WARNING - TEST_UNIT_READY taskqueue time out - completing request directly Sep 20 07:43:36 lightning kernel: acd0: WARNING - TEST_UNIT_READY freeing taskqueue zombie request Sep 20 07:45:26 lightning kernel: acd0: WARNING - PREVENT_ALLOW taskqueue timeout - completing request directly Sep 20 07:45:26 lightning kernel: acd0: WARNING - PREVENT_ALLOW freeing taskqueue zombie request I recently upgraded from 7.0 to 7.2-p3. I just last night cut a dual layer DVD with growisofs. It appears to have cut fine. When growisofs stops in the middle like that, it's often caused by media defects. Have you tried another disk? Yes, same effect. Also with a DVD+R. Also tried it on 8-STABLE, same messages, same results. Another possibility is that the drive is worn out. DVD writers have a limited lifespan largely measured by the number of disks they cut. This drive has probably written under 50 DVDs, all ISOs used for backup. It's a Lite-On DH-20A4P bought in August 2008. It's looking like the drive itself has failed. Which seems odd, since I thought it could still burn CDs. -Warren Block * Rapid City, South Dakota USA ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
Re: What happened to DVD writing?
On Sun, Sep 20, 2009 at 9:47 AM, Warren Block wrote: > Recording data DVDs worked a few weeks/months ago on this system with a > PATA Lite-On DVD recorder: > > FreeBSD lightning 7.2-STABLE FreeBSD 7.2-STABLE #0: Sun Sep 20 07:25:58 MDT > 2009 r...@lightning:/usr/obj/usr/src/sys/LIGHTNING i386 > > Now growisofs starts, but appears to never manage to write to the DVD. It's > a DVD-R, one from the same batch that has worked before: > > 0.77% done, estimate finish Sun Sep 20 07:55:57 2009 > > and there it stops. Rebooting is needed, and the machine can't quite bring > itself to shut down after syncing buffers. /var/log/messages: > > Sep 20 07:42:44 lightning kernel: acd0: FAILURE - READ_BUFFER ILLEGAL > REQUEST as c=0x24 ascq=0x00 > Sep 20 07:42:46 lightning kernel: acd0: FAILURE - MODE_SELECT_BIG ILLEGAL > REQUEST asc=0x24 ascq=0x00 > Sep 20 07:42:56 lightning kernel: acd0: FAILURE - READ_TOC ILLEGAL REQUEST > asc=0x24 ascq=0x00 > Sep 20 07:43:25 lightning kernel: acd0: WARNING - TEST_UNIT_READY taskqueue > time out - completing request directly > Sep 20 07:43:36 lightning kernel: acd0: WARNING - TEST_UNIT_READY freeing > taskqueue zombie request > Sep 20 07:45:26 lightning kernel: acd0: WARNING - PREVENT_ALLOW taskqueue > timeout - completing request directly > Sep 20 07:45:26 lightning kernel: acd0: WARNING - PREVENT_ALLOW freeing > taskqueue zombie request > > I recently upgraded from 7.0 to 7.2-p3. I just last night cut a dual layer DVD with growisofs. It appears to have cut fine. When growisofs stops in the middle like that, it's often caused by media defects. Have you tried another disk? Another possibility is that the drive is worn out. DVD writers have a limited lifespan largely measured by the number of disks they cut. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
What happened to DVD writing?
Recording data DVDs worked a few weeks/months ago on this system with a PATA Lite-On DVD recorder: FreeBSD lightning 7.2-STABLE FreeBSD 7.2-STABLE #0: Sun Sep 20 07:25:58 MDT 2009 r...@lightning:/usr/obj/usr/src/sys/LIGHTNING i386 Now growisofs starts, but appears to never manage to write to the DVD. It's a DVD-R, one from the same batch that has worked before: 0.77% done, estimate finish Sun Sep 20 07:55:57 2009 and there it stops. Rebooting is needed, and the machine can't quite bring itself to shut down after syncing buffers. /var/log/messages: Sep 20 07:42:44 lightning kernel: acd0: FAILURE - READ_BUFFER ILLEGAL REQUEST as c=0x24 ascq=0x00 Sep 20 07:42:46 lightning kernel: acd0: FAILURE - MODE_SELECT_BIG ILLEGAL REQUEST asc=0x24 ascq=0x00 Sep 20 07:42:56 lightning kernel: acd0: FAILURE - READ_TOC ILLEGAL REQUEST asc=0x24 ascq=0x00 Sep 20 07:43:25 lightning kernel: acd0: WARNING - TEST_UNIT_READY taskqueue time out - completing request directly Sep 20 07:43:36 lightning kernel: acd0: WARNING - TEST_UNIT_READY freeing taskqueue zombie request Sep 20 07:45:26 lightning kernel: acd0: WARNING - PREVENT_ALLOW taskqueue timeout - completing request directly Sep 20 07:45:26 lightning kernel: acd0: WARNING - PREVENT_ALLOW freeing taskqueue zombie request -Warren Block * Rapid City, South Dakota USA ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
