Cannot open DVD drive since KDE SC 4.6

Schwefelsaeure · 2011-02-15 10:28:06

Hi everybody,

I've upgraded to KDE SC 4.6 a few days ago.

Since then I have to struggle with a strange problem: When logged in via KDM I cannot open the DVD drive. When hitting the eject button on the device, the drive is opened for a few centimeters and then it is closed immediately.

The DVD drive works well when not logged in in KDE. I can insert discs and access its content when KDM is displayed and when logged in at a virtual terminal (tty1 to tty6).

Firstly I thought udev and hal conflicts each other, so I removed hal and its related packages:

[2011-02-12 00:12] Running 'pacman -Rns hal'
[2011-02-12 00:12] removed hal (0.5.14-6)
[2011-02-12 00:12] removed hal-info (0.20091130-1)
[2011-02-12 00:12] removed dmidecode (2.11-1)

But this has no effect.

User 'elnigno' described a similar problem in the 'Pacman & Package Upgrade Issues' section:
https://bbs.archlinux.org/viewtopic.php?id=113290

But there is also no solution found so far.

Obviously a KDE process/service/daemon blocks the DVD drive.

Some - maybe - useful information:

[root@asterix ~]# hdparm /dev/hdc

/dev/hdc:
SG_IO: questionable sense data, results may be incorrect
 multcount     =  0 (off)
 IO_support    =  0 (default) 
 unmaskirq     =  0 (off)
 using_dma     =  1 (on)
 keepsettings  =  0 (off)
 readonly      =  0 (off)
 readahead     = 256 (on)
 HDIO_GETGEO failed: Inappropriate ioctl for device

My array of daoemons in rc.conf after removing hal:

DAEMONS=(syslog-ng network netfs crond alsa dbus fam kdm)

The Pacman log when upgrading to KDE SC 4.6.0.1:
http://pastebin.com/W9gjdcYj

Maybe anybody has a tip to solve this problem.

Thank you.

ralvez · 2011-02-15 14:55:55

Try the "eject" command.
In unix the eject command will eject your removable media.
For example "eject -d" will open the tray of your default CD ... assuming it is recognized.
BTW, this is a CLI command as there is no GUI to this program.

If you wish to know a bit more about this utility take a look here:http://linux.about.com/od/commands/l/blcmdl1_eject.htm

I hope this helps.

R.

Edit: BTW I have KDE 4.6 and the CD is working fine.

Last edited by ralvez (2011-02-15 14:56:52)

Schwefelsaeure · 2011-02-15 16:15:45

Hi ralvez,

thanks for reply.

The program 'eject' didn't solved the problem. The tray of the DVD drive is opened completely, but it is closed immediately again when using eject.

Edit: BTW I have KDE 4.6 and the CD is working fine.

I haven't had problems with the DVD drive and KDE (3.x and 4.x) either so far.
But it is apparently a problem with KDE, because all works fine exept when logged in in KDE.

Schwefelsaeure · 2011-02-15 17:26:18

Hi everybody,

after playing around to solve the problem with the DVD drive I've (probably) found the component which causes the problem:

I stopped the inter-process communcation daemon 'dbus' with

[root@asterix ~]# /etc/rc.d/dbus stop

After this I was able to use the DVD drive in KDE.

But I guess this is not a longterm solution, because many (desktop) applications depend on the dbus daemon.

Does anybody else have similar problems?

ps: It's very strange that the DVD drive works when not logged in via KDM. At that time the dbus daemon is already executed.

JokerBoy · 2011-02-15 19:05:59

have you tried with a new kde configuration?

mv ~/.kde4{,.bak}

from wiki:
In case of any error, try using a new user account or (re)moving KDE's configuration which can be found at ~/.kde4 /tmp/kde- /var/tmp/kdecache-. Akonadi saves its data at ~/.config/akonadi and ~/.local/share/akonadi.

Arch Linux

#1 2011-02-15 10:28:06

Cannot open DVD drive since KDE SC 4.6

#2 2011-02-15 14:55:55

Re: Cannot open DVD drive since KDE SC 4.6

#3 2011-02-15 16:15:45

Re: Cannot open DVD drive since KDE SC 4.6

#4 2011-02-15 17:26:18

Re: Cannot open DVD drive since KDE SC 4.6

#5 2011-02-15 19:05:59

Re: Cannot open DVD drive since KDE SC 4.6

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