I am using Ubuntu 14.04 on Thinkpad T400. I have had a problem with my cd tray for two years.

Today I pressed the button on the cd tray, and inserted a cd into the cd tray, and then I opened and read the content of the cd in Nautilus. Then I pressed again the button of the cd tray, and removed the cd from the tray, without closing the Nautilus window that opens the the cd's content. Later I closed the Nautilus window.

Now I try to press the button on the cd tray to insert a second cd into the tray, but the tray doesn't open. I also try the command line, and there seem to be some problem:

$ eject
$ eject -T
eject: CD-ROM tray close command failed: Input/output error
$ eject -t
eject: CD-ROM tray close command failed: Input/output error

How can I solve the problem?



I used a paper clip to open the cd tray, and insert the second cd in, but after a minute, it begins to try to read the cd by making sound and flashing the light, but the cd still isn't mounted.

I guess it might not (just) be a hardware problem? Can the driver module for the cd tray be the problem? How can I test that, and make the driver module work?

I am following Discs in DVD Drive not being read. Here is the output of lshw for the cd tray/drive:

       description: DVD-RAM writer
       product: DVDRAM GSA-U20N
       vendor: HL-DT-ST
       physical id: 0.0.0
       bus info: scsi@1:0.0.0
       logical name: /dev/cdrom
       logical name: /dev/sr0
       version: HX12
       capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
       configuration: ansiversion=5 status=open

I fail to mount the cd manually:

$ sudo mkdir /media/t/cdrom
$ sudo mount -t auto /dev/cdrom /media/t/cdrom
mount: no medium found on /dev/sr0

Have you tried a paper clip? Many CD drives, particularly older models, have a small hole into which you can insert the end of a paper clip and force the tray open.

  • thanks. where can i insert a paper clip into? – StackExchange for All May 14 '16 at 13:31
  • Mostly there is a tiny hole in the frontside in the tray or below. – Videonauth May 14 '16 at 13:36
  • can you show me in a picture? @Videonauth – StackExchange for All May 14 '16 at 14:05
  • can I do it without turning off my laptop? @Videonauth – StackExchange for All May 14 '16 at 14:14
  • Here like this and yes you should be able to do this without turning off the laptop. – Videonauth May 14 '16 at 14:20

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