DVD drives reading as CD drives?

twiistedkaos · 2007-12-21 18:37:02

Recently, I moved my motherboard over to a new case, I didn't bother plugging in my dvd drives for awhile, but I did so last night. Of course I had to reset my cmos in order for y motherboard to detect them as being connected, but as I booted into arch and tried to burn and watch a dvd it fails to do so. It will mount and play CD's, but no longer DVD's, does anyone have any ideas why?

synorgy · 2007-12-21 19:50:23

Don't know if this is your problem but have you installed libdvdcss etc? you can check with pacman -Q libdvdcss.

twiistedkaos · 2007-12-21 20:22:44

Yes, I've had arch installed for quite some time now, I should have all the dvd related pakages.

sacamano_m82 · 2007-12-22 16:55:49

You can check the capabilities of your drive using 'wodim -prcap' .
Also, why should you reset your cmos to detect a new drive ?
And which application did you use to burn a dvd ?

twiistedkaos · 2008-01-02 00:32:32

eh, it just wasn't detecting them when I plugged it back in, so I resetted my cmos and they were. The command:
wodim -prcap

only shows my dvd/cd reader drive, not my burner device, however, my burner device is shown in gnomebaker and k3b.

wodim -prcap
Device was not specified. Trying to find an appropriate drive...
Detected CD-R drive: /dev/cdrw
Using /dev/cdrom of unknown capabilities
Device type    : Removable CD-ROM
Version        : 5
Response Format: 2
Capabilities   : 
Vendor_info    : 'SAMSUNG '
Identification : 'DVD-ROM SD-616E '
Revision       : 'F501'
Device seems to be: Generic mmc2 DVD-ROM.

Drive capabilities, per MMC-2 page 2A:

  Does read CD-R media
  Does not write CD-R media
  Does read CD-RW media
  Does not write CD-RW media
  Does read DVD-ROM media
  Does read DVD-R media
  Does not write DVD-R media
  Does not read DVD-RAM media
  Does not write DVD-RAM media
  Does not support test writing

  Does read Mode 2 Form 1 blocks
  Does read Mode 2 Form 2 blocks
  Does read digital audio blocks
  Does restart non-streamed digital audio reads accurately
  Does not support Buffer-Underrun-Free recording
  Does read multi-session CDs
  Does read fixed-packet CD media using Method 2
  Does not read CD bar code
  Does read R-W subcode information
  Does not return R-W subcode de-interleaved and error-corrected
  Does read raw P-W subcode data from lead in
  Does return CD media catalog number
  Does return CD ISRC information
  Does support C2 error pointers
  Does not deliver composite A/V data

  Does play audio CDs
  Number of volume control levels: 255
  Does support individual volume control setting for each channel
  Does support independent mute setting for each channel
  Does not support digital output on port 1
  Does not support digital output on port 2

  Loading mechanism type: tray
  Does support ejection of CD via START/STOP command
  Does not lock media on power up via prevent jumper
  Does allow media to be locked in the drive via PREVENT/ALLOW command
  Is not currently in a media-locked state
  Does not support changing side of disk
  Does not have load-empty-slot-in-changer feature
  Does not support Individual Disk Present feature

  Maximum read  speed:  8448 kB/s (CD  48x, DVD  6x)
  Current read  speed:   176 kB/s (CD   1x, DVD  0x)
  Maximum write speed:     0 kB/s (CD   0x, DVD  0x)
  Current write speed:     0 kB/s (CD   0x, DVD  0x)
  Buffer size in KB: 512
  Copy management revision supported: 1

Strange to me that it's only showing one device with wodim -prcap, but two with a burner program.

sacamano_m82 · 2008-01-02 03:30:37

Hmm. That is strange.
You can check if wodim at least tries to scan all possible drives by using the commands "wodim -scanbus" and "wodim -devices" .
Also, if you can find out which drive the burner programs are trying to access,
then you can view the capabilities of that drive using "wodim -prcap dev=<dev_name>", and check if DVD writing is allowed on that drive.

To find out the device string, search for "block.device" in the output of lshal and get the string value corresponding to the drive.
It should be something like /dev/sr0.

gazj · 2008-01-02 08:13:57

Could be off the mark with this one, but have you added yourself to video, storage and optical groups

azleifel · 2008-01-02 08:48:31

I don't know about the usefulness of "wodim -prcap" because it seems to just look for the first usable drive. Anyway, you have two drives? Did you connect them to the motherboard in exactly the same way as they were connected before the move? If not then could it be that master and slave have been swapped on the cable without changing the jumpers on the drives? Otherwise, did you check that all of the drive data and power connections are secure?

twiistedkaos · 2008-01-02 22:06:17

Alright, I unplugged my DVD-ROM reader drive, because the tray was broken anyways. So now I just have my DVD+RW. I changed it's jumper to master, plugged it back in, booted back up. Now wodim -precap shows it's info, and this is what is says:

wodim -prcap
wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.Device was not specified. Trying to find an appropriate drive...
Detected CD-R drive: /dev/cdrw
Using /dev/cdrom of unknown capabilities
Device type    : Removable CD-ROM
Version        : 5
Response Format: 2
Capabilities   : 
Vendor_info    : '_NEC    '
Identification : 'DVD+RW ND-2100AD'
Revision       : '103D'
Device seems to be: Generic mmc2 DVD-ROM.

Drive capabilities, per MMC-3 page 2A:

  Does read CD-R media
  Does write CD-R media
  Does read CD-RW media
  Does write CD-RW media
  Does read DVD-ROM media
  Does read DVD-R media
  Does not write DVD-R media
  Does not read DVD-RAM media
  Does not write DVD-RAM media
  Does support test writing

  Does read Mode 2 Form 1 blocks
  Does read Mode 2 Form 2 blocks
  Does read digital audio blocks
  Does restart non-streamed digital audio reads accurately
  Does support Buffer-Underrun-Free recording
  Does read multi-session CDs
  Does read fixed-packet CD media using Method 2
  Does not read CD bar code
  Does read R-W subcode information
  Does not return R-W subcode de-interleaved and error-corrected
  Does read raw P-W subcode data from lead in
  Does return CD media catalog number
  Does return CD ISRC information
  Does support C2 error pointers
  Does not deliver composite A/V data

  Does play audio CDs
  Number of volume control levels: 256
  Does support individual volume control setting for each channel
  Does support independent mute setting for each channel
  Does not support digital output on port 1
  Does not support digital output on port 2

  Loading mechanism type: tray
  Does support ejection of CD via START/STOP command
  Does not lock media on power up via prevent jumper
  Does allow media to be locked in the drive via PREVENT/ALLOW command
  Is not currently in a media-locked state
  Does not support changing side of disk
  Does not have load-empty-slot-in-changer feature
  Does not support Individual Disk Present feature

  Maximum read  speed:  7056 kB/s (CD  40x, DVD  5x)
  Current read  speed:  7056 kB/s (CD  40x, DVD  5x)
  Maximum write speed:  5645 kB/s (CD  32x, DVD  4x)
  Current write speed:  5645 kB/s (CD  32x, DVD  4x)
  Rotational control selected: CLV/PCAV
  Buffer size in KB: 2048
  Copy management revision supported: 1
  Number of supported write speeds: 6
  Write speed # 0:  5645 kB/s CLV/PCAV (CD  32x, DVD  4x)
  Write speed # 1:  4234 kB/s CLV/PCAV (CD  24x, DVD  3x)
  Write speed # 2:  3528 kB/s CLV/PCAV (CD  20x, DVD  2x)
  Write speed # 3:  2822 kB/s CLV/PCAV (CD  16x, DVD  2x)
  Write speed # 4:  1411 kB/s CLV/PCAV (CD   8x, DVD  1x)
  Write speed # 5:   706 kB/s CLV/PCAV (CD   4x, DVD  0x)

However, it's still not reading nor burning any cd-rom devices. I am part of video, storage and optical groups(I havn't reinstalled arch or anything in the past 2 years)

azleifel · 2008-01-02 23:29:15

Then I don't know. If the drive(s) worked before being moved to the new case then I would suspect either a poor connection, a short circuit or physical damage. If all seems to be sound then the only other possibility that comes to my mind is that the BIOS reset didn't take properly. Having done it once then I suppose that there's no harm in carefully repeating the reset and clearing the ESCD data if the BIOS setup offers that option.

twiistedkaos · 2008-01-03 06:49:40

azleifel wrote:

Then I don't know. If the drive(s) worked before being moved to the new case then I would suspect either a poor connection, a short circuit or physical damage. If all seems to be sound then the only other possibility that comes to my mind is that the BIOS reset didn't take properly. Having done it once then I suppose that there's no harm in carefully repeating the reset and clearing the ESCD data if the BIOS setup offers that option.

The drive still does work, it reads and burns CD's fine, it just fails burning and reading a dvd even though it's a DVD-R drive. I get this error when I try to mount a dvd with the drive:

mount /dev/sr0 -t iso9660 /home/josh/test
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
       missing codepage or other error
       (could this be the IDE device where you in fact use
       ide-scsi so that sr0 or sda or so is needed?)
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

This is the dmesg:

sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
sr 1:0:0:0: [sr0] Sense Key : 0x3 [current] 
Info fld=0x10
sr 1:0:0:0: [sr0] ASC=0x11 ASCQ=0x0
end_request: I/O error, dev sr0, sector 64
isofs_fill_super: bread failed, dev=sr0, iso_blknum=16, block=16

This is the gnomebaker error, although there is more, but the program freezes before I can copy it all.

WARNING: the deprecated pseudo SCSI syntax found as device specification.
Support for that may cease in the future versions of wodim. For now,
the device will be mapped to a block device file where possible.
Run "wodim --devices" for details.
Unable to map SCSI device ...

Last edited by twiistedkaos (2008-01-03 06:56:10)

azleifel · 2008-01-03 09:10:18

twiistedkaos wrote:

The drive still does work, it reads and burns CD's fine, it just fails burning and reading a dvd even though it's a DVD-R drive. I get this error when I try to mount a dvd with the drive:

You don't by any chance have hal installed and also have lines for your optical drive(s) in /etc/fstab (http://wiki.archlinux.org/index.php/HAL … zed_by_hal)?

jacko · 2008-01-03 15:25:19

wodim -prcap
wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.Device was not specified. Trying to find an appropriate drive...
Detected CD-R drive: /dev/cdrw
Using /dev/cdrom of unknown capabilities
Device type : Removable CD-ROM
Version : 5
Response Format: 2
Capabilities :
Vendor_info : '_NEC '
Identification : 'DVD+RW ND-2100AD'
Revision : '103D'
Device seems to be: Generic mmc2 DVD-ROM.
Drive capabilities, per MMC-3 page 2A:
Does read CD-R media
Does write CD-R media
Does read CD-RW media
Does write CD-RW media
Does read DVD-ROM media
Does read DVD-R media
Does not write DVD-R media
Does not read DVD-RAM media
Does not write DVD-RAM media
Does support test writing

Yes, it detects the drive, but it does not detect it right. Did u even read the output of the terminal? This is why its not writing dvds, because it doesn't think that it can.

Last edited by jacko (2008-01-03 15:26:33)

azleifel · 2008-01-03 15:43:38

jacko wrote:

Yes, it detects the drive, but it does not detect it right. Did u even read the output of the terminal? This is why its not writing dvds, because it doesn't think that it can.

I did indeed read it and must admit that this is a bit of a puzzler. On the assumption that any possible hardware connection problems have been eliminated and that the drive has not regressed in some way then the problem must presumably lie in the detection. The most obvious cause that came to my mind is a contention between hal and fstab - and it came to mind because I had the same problem not long after installing Arch for the first time

Last edited by azleifel (2008-01-03 15:44:14)

jacko · 2008-01-03 16:48:11

azleifel wrote:

jacko wrote:
Yes, it detects the drive, but it does not detect it right. Did u even read the output of the terminal? This is why its not writing dvds, because it doesn't think that it can.
I did indeed read it and must admit that this is a bit of a puzzler. On the assumption that any possible hardware connection problems have been eliminated and that the drive has not regressed in some way then the problem must presumably lie in the detection. The most obvious cause that came to my mind is a contention between hal and fstab - and it came to mind because I had the same problem not long after installing Arch for the first time

I agree, so lets have the thread starter post his /etc/fstab file. That should clear that up.

twiistedkaos · 2008-01-03 16:52:10

[josh@gizmo:~] $cat /etc/fstab
# 
# /etc/fstab: static file system information
#
# <file system>        <dir>         <type>    <options>          <dump> <pass>
none                   /dev/pts      devpts    defaults            0      0
none                   /dev/shm      tmpfs     defaults            0      0

/dev/cdrom             /mnt/cd   iso9660   ro,user,noauto,unhide   0      0
/dev/dvd               /mnt/dvd  udf       ro,user,noauto,unhide   0      0
/dev/fd0               /mnt/fl   vfat      user,noauto             0      0

/dev/sda3 / ext3 defaults,noatime 0 1
/dev/sda1 /boot ext2 defaults 0 1
#/dev/sda2 swap swap defaults 0 0
#custom swap
swap swap swap defaults 0 0

I've always had the same lines however and they worked, I'll try to remove them and post back with a reply

negative, still does not work.

Last edited by twiistedkaos (2008-01-03 17:01:50)

jacko · 2008-01-03 17:38:51

twiistedkaos wrote:

[josh@gizmo:~] $cat /etc/fstab
# 
# /etc/fstab: static file system information
#
# <file system>        <dir>         <type>    <options>          <dump> <pass>
none                   /dev/pts      devpts    defaults            0      0
none                   /dev/shm      tmpfs     defaults            0      0

/dev/cdrom             /mnt/cd   iso9660   ro,user,noauto,unhide   0      0
/dev/dvd               /mnt/dvd  udf       ro,user,noauto,unhide   0      0
/dev/fd0               /mnt/fl   vfat      user,noauto             0      0

/dev/sda3 / ext3 defaults,noatime 0 1
/dev/sda1 /boot ext2 defaults 0 1
#/dev/sda2 swap swap defaults 0 0
#custom swap
swap swap swap defaults 0 0

I've always had the same lines however and they worked, I'll try to remove them and post back with a reply

negative, still does not work.

so u commented out the /dev/dvd line in fstab? thats what u are saying? Did u try the other route and made sure u are part of the optical group?

hmm, I wonder if upgrading the firmware on the drive will accomplish anything. Not sure how one would do that in linux though. But, its clear that the drive is not being detected as it should be, but I do not have the slightest idea.

Physical damage may very well be a culprit, it doesn't take much of an electrical shock to destroy sensitive electronics. U might not even realized you did it, that's how sensitive they are.

Last edited by jacko (2008-01-03 17:43:56)

azleifel · 2008-01-03 22:45:26

I guess that we're all out of ideas here

jacko · 2008-01-04 04:01:43

azleifel wrote:

I guess that we're all out of ideas here

sry, its beyond my tech level, only thing I can say is take it out and put it into another computer and see if it works there. If it does then u might have a reason to keep looking for a solution.

twiistedkaos · 2008-01-04 04:07:36

I asked the linux teacher in my college about it, he said to try and reinstall the dvd drivers, which I'll do tonight and post a reply if it does fix the situation.

lilsirecho · 2008-01-04 05:46:31

In /mnt, do you have .../mnt/dvd....?

In my fstab, I list both drives as...../dev/cdrom.... and all is good even with dual layer.

/dev/cdrom /mnt/cd iso9660 ro,users,noauto,unhide 0 0
/dev/cdrom /mnt/dvd udf ro,users,noauto,unhide 0 0

Last edited by lilsirecho (2008-01-04 05:50:32)

Arch Linux

#1 2007-12-21 18:37:02

DVD drives reading as CD drives?

#2 2007-12-21 19:50:23

Re: DVD drives reading as CD drives?

#3 2007-12-21 20:22:44

Re: DVD drives reading as CD drives?

#4 2007-12-22 16:55:49

Re: DVD drives reading as CD drives?

#5 2008-01-02 00:32:32

Re: DVD drives reading as CD drives?

#6 2008-01-02 03:30:37

Re: DVD drives reading as CD drives?

#7 2008-01-02 08:13:57

Re: DVD drives reading as CD drives?

#8 2008-01-02 08:48:31

Re: DVD drives reading as CD drives?

#9 2008-01-02 22:06:17

Re: DVD drives reading as CD drives?

#10 2008-01-02 23:29:15

Re: DVD drives reading as CD drives?

#11 2008-01-03 06:49:40

Re: DVD drives reading as CD drives?

#12 2008-01-03 09:10:18

Re: DVD drives reading as CD drives?

#13 2008-01-03 15:25:19

Re: DVD drives reading as CD drives?

#14 2008-01-03 15:43:38

Re: DVD drives reading as CD drives?

#15 2008-01-03 16:48:11

Re: DVD drives reading as CD drives?

#16 2008-01-03 16:52:10

Re: DVD drives reading as CD drives?

#17 2008-01-03 17:38:51

Re: DVD drives reading as CD drives?

#18 2008-01-03 22:45:26

Re: DVD drives reading as CD drives?

#19 2008-01-04 04:01:43

Re: DVD drives reading as CD drives?

#20 2008-01-04 04:07:36

Re: DVD drives reading as CD drives?

#21 2008-01-04 05:46:31

Re: DVD drives reading as CD drives?

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