cd,dvd not detected

[sejtn4u]

Hi,

I'm not sure if this is the right section. I'm having a problem with optical drive on my laptop - Toshiba C660, but actually it is Debian specific, because I have no issues in Win7 or other Linux distributions. I'm running Debian testing 64bit with Gnome Shell, but I had this problem also on Debian testing with Awesome WM, so it's not about Gnome.

Any kind of cd, dvd disc inserted does not get detected automatically, so I could mount it from file manager. But it gets detected, when i run lsblk in a terminal, and then I get pop-up notification from Gnome, about what to do with this media.

Commenting cd rom line in fstab did not solve the problem. Other removable media like usb drives work fine.

It's pretty frustrating to run lsblk every time in order to detect cd/dvd

[sejtn4u]

My shot in the dark is that it has something to do with udev rules, but I might be wrong...

Here is the output of "dmesg | grep CD-ROM":

Code: Select all

[    1.570780] scsi 4:0:0:0: CD-ROM            HL-DT-ST DVDRAM GT51N     SB02 PQ: 0 ANSI: 5
[    1.896593] cdrom: Uniform CD-ROM driver Revision: 3.20
[    1.896834] sr 4:0:0:0: Attached scsi CD-ROM sr0

So I guess everything is fine with hardware detection. Anyone?

[mbod]

Hello,

I want to confirm that this happens to me as well. On my regular PC as well as on a freshly installed PC. Both are running Debian Testing. USB sticks and external USB drives are working fine. Internal CD/DVD is not working. Mounting manually /dev/sr0 does work.

There is no trace in any log file when I close the tray of the CD/DVD drive . Not syslog, daemon.log, messages, user.log or ~/.xsession-erros. It happens for KDE, GNOME and XFCE.

I have posted this question also on the debian user mailing listl:
http://www.mail-archive.com/debian-user ... 56405.html

Any help is highly appreciated.

Matthias

[mbod]

I found two related postings in this forum:

http://forums.debian.net/viewtopic.php? ... nt#p519549
http://forums.debian.net/viewtopic.php? ... nt#p519480

Matthias

[sejtn4u]

Thanks Matthias, enabling kernel polling has solved my problem too, but I think it should get fixed anyway, because I'm probably not the only one who couldn't google the answer for that issue.

It seams weird to me, that Debian is the only distro which has a problem with such a basic thing like cd/dvd rom, other than that it's still one of my favourites.

[mbod]

Hi,

I can confirm that kernel polling solves the issue.

I enabled it via:
echo 2000 > /sys/module/block/parameters/events_dfl_poll_msecs

This is a known bug (http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725978)

and the issue lies probably in udev. The polling is supposed to be set in
/lib/udev/rules.d/60-persistent-storage.rules

but somehow it does not work. Also reported here: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=713877

Matthias

[uBaLd]

using this commend in the terminal seam to have fixed it for dvd:

Code: Select all

sudo echo 2000 > /sys/module/block/parameters/events_dfl_poll_msecs

to do that I have commented the lint for cdrom in /etc/fstab:

#/dev/sr0 /media/cdrom udf,iso9660 user,noauto 0 0

but for cd it act weardly ?!! Some cd mount but when I try to get acces to the data I get: error

Message did not receive a reply (timeout by message bus)

other dose nothing !
when i try to eject after 21 minute i get error:

An operation is already pending

If I let the line
/dev/sr0 /media/cdrom udf,iso9660 user,noauto 0 0
uncommented I get 2 icon for the disk in nautilus and they don't work properly
How do you solve it for cdrom ??

[uBaLd]

Ok now it only seam to work when the pc is rebooted with the cdrom inside ! can someone help ? I have now idea where to start where to look and what to do to fix this problem that I have endure since a while and that had went worst day by day. I tried so many thing and gnome 3 seam to have change the role quite a bit. It is starting to be quite hard to figure out why they said that gnome 3 is easier ! It's the hardest desktop I've work with. Anny help will be appreciate !

Thanks

[Riberto]

Thanks Matthias, enabling kernel polling has solved my problem too, but I think it should get fixed anyway, because I'm probably not the only one who couldn't google the answer for that issue.

It seams weird to me, that Debian is the only distro which has a problem with such a basic thing like cd/dvd rom, other than that it's still one of my favourites.

I used the same solution of adding that line to my /etc/rc.local file.
But then I had instability issues with my install.
I would come back later, after a few minutes and find my laptop had locked up.

It would not even shutdown unless I did a hard power-off.
After much messsing with it, adjusting this and that, I decided to do a clean re-install.
It is now working just great and if I want to burn or use a disc, I'll just use my stable install.

Add this to my bluetooth issues. I'll keep working with Debian and see when a solution comes down the pike.

Debian is STILL the way to go...

Debian Jessie 64 bit
Intel i5 / 8 Gig RAM

[Francewhoa]

Confirming this bug. I sent a bug report at https://bugs.debian.org/cgi-bin/bugrepo ... bug=753379