I rarely use cd's on my laptop, but I recall having the same problem a few months ago. When I put a cd in my DVD drive nothing happens. It kicked in last time without me doing anything but I don't know what's wrong. I need to burn a cd with k3b but it gives the error no optical device found.My system is Fedora 20 x86_64.Problem: CD's don't get mounted, when inserted in the drive nothing happens.What can I do to resolve this problem?UPDATE CURRENT:Problem: cd's and dvd's are not working properly, since march they have been unstable as in not mounting when inserted, mounting when inserted but disconnecting at random/unmonting at random, when disconneted the disk is invisible to the system and I can't eject the disk.I put a dvd movie in the drive yesterday, it got mounted in /run/media/username/MOUNTPOINT and eveything worked, then after a while it dissapeared, was not mounted anymore and I can not eject the dvd from the drive. This is how it is now, it's still in the drive, here are some commands that work on the drive as is now:root ~ # dmesg | grep -E 'cd|cdrom|cd/rw|dvd|writer|sr0'[    1.239250] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver[    1.248714] usb usb1: Manufacturer: Linux 3.16.2-201.fc20.x86_64 ehci_hcd[    1.249119] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver[    1.249150] uhci_hcd: USB Universal Host Controller Interface driver[    1.249308] xhci_hcd 0000:00:14.0: xHCI Host Controller[    1.249439] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2[    1.249527] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported[    1.249553] xhci_hcd 0000:00:14.0: irq 61 for MSI/MSI-X[    1.249638] usb usb2: Manufacturer: Linux 3.16.2-201.fc20.x86_64 xhci_hcd[    1.252451] xhci_hcd 0000:00:14.0: xHCI Host Controller[    1.252613] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 3[    1.252661] usb usb3: Manufacturer: Linux 3.16.2-201.fc20.x86_64 xhci_hcd[    1.652308] sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray[    1.652311] cdrom: Uniform CD-ROM driver Revision: 3.20[    1.652453] sr 1:0:0:0: Attached scsi CD-ROM sr0[    1.828890] usb 2-2: new high-speed USB device number 2 using xhci_hcd[   40.830788] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)[   41.739818] cdc_ether 2-2:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-2, CDC Ethernet Device, 58:2c:80:13:92:63[   41.739847] usbcore: registered new interface driver cdc_ether[ 1809.110149] cdc_ether 2-2:1.0 enp0s20u2: unregister 'cdc_ether' usb-0000:00:14.0-2, CDC Ethernet Device[ 1825.135250] usb 2-1: new high-speed USB device number 3 using xhci_hcd[ 1831.390781] usb 2-1: new high-speed USB device number 4 using xhci_hcd[ 1831.558257] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[17250.764324] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[17264.847506] usb 2-1: new high-speed USB device number 5 using xhci_hcd[17270.813900] usb 2-1: new high-speed USB device number 6 using xhci_hcd[17270.980819] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[35215.177879] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[35227.560848] usb 2-1: new high-speed USB device number 7 using xhci_hcd[35228.671372] usb 2-1: new high-speed USB device number 8 using xhci_hcd[35228.838613] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[35917.047630] SELinux: initialized (dev sr0, type udf), uses genfs_contexts[44806.808009] sr 1:0:0:0: [sr0] CDB: [44807.324227] sr 1:0:0:0: [sr0] CDB: [44807.880434] sr 1:0:0:0: [sr0] CDB: [44856.000206] sr 1:0:0:0: [sr0] CDB: [44856.319338] sr 1:0:0:0: [sr0] CDB: [44980.675383] sr 1:0:0:0: [sr0] CDB: [59345.299819] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[78891.591565] usb 2-2: new high-speed USB device number 9 using xhci_hcd[78897.855153] usb 2-2: new high-speed USB device number 10 using xhci_hcd[78898.022399] cdc_ether 2-2:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-2, CDC Ethernet Device, 58:2c:80:13:92:63[83262.678186] cdc_ether 2-2:1.0 enp0s20u2: unregister 'cdc_ether' usb-0000:00:14.0-2, CDC Ethernet Device[83278.871637] usb 2-1: new high-speed USB device number 11 using xhci_hcd[83279.952077] usb 2-1: new high-speed USB device number 12 using xhci_hcd[83280.118951] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[95425.784192] sr0: scsi3-mmc drive: 62x/62x writer dvd-ram cd/rw xa/form2 cdda tray[95425.785279] sr 1:0:0:0: Attached scsi CD-ROM sr0[95449.052453] SELinux: initialized (dev sr0, type udf), uses genfs_contexts[98370.811692] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[98386.604469] usb 2-1: new high-speed USB device number 13 using xhci_hcd[98387.914034] usb 2-1: new high-speed USB device number 14 using xhci_hcd[98388.080693] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[100738.953863] traps: dvdrip[647] general protection ip:7fa7847e3561 sp:7fff325fdbd0 error:0 in liboxygen-gtk.so[7fa78477f000+150000][122586.181343] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[122600.093624] usb 2-1: new high-speed USB device number 15 using xhci_hcd[122601.554193] usb 2-1: new high-speed USB device number 16 using xhci_hcd[122601.721759] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[132184.067563] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[139533.563004] usb 2-1: new high-speed USB device number 17 using xhci_hcd[139534.653429] usb 2-1: new high-speed USB device number 18 using xhci_hcd[139534.820139] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[139676.985518] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[167212.674495] usb 2-2: new high-speed USB device number 19 using xhci_hcd[167213.774791] usb 2-2: new high-speed USB device number 20 using xhci_hcd[167213.941249] cdc_ether 2-2:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-2, CDC Ethernet Device, 58:2c:80:13:92:63[192379.837441] cdc_ether 2-2:1.0 enp0s20u2: unregister 'cdc_ether' usb-0000:00:14.0-2, CDC Ethernet Device[192396.388996] usb 2-1: new high-speed USB device number 21 using xhci_hcd[192397.939646] usb 2-1: new high-speed USB device number 22 using xhci_hcd[192398.106156] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[192659.266621] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[192676.002675] usb 2-1: new high-speed USB device number 23 using xhci_hcd[192677.093245] usb 2-1: new high-speed USB device number 24 using xhci_hcd[192677.260545] cdc_ether 2-1:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, 58:2c:80:13:92:63[208218.088226] cdc_ether 2-1:1.0 enp0s20u1: unregister 'cdc_ether' usb-0000:00:14.0-1, CDC Ethernet Device[208244.096626] usb 2-2: new high-speed USB device number 26 using xhci_hcd[208245.587341] usb 2-2: new high-speed USB device number 27 using xhci_hcdroot ~ # df -hFilesystem                       Size  Used Avail Use% Mounted on/dev/dm-3                         89G   63G   21G  75% /devtmpfs                         5.8G     0  5.8G   0% /devtmpfs                            5.9G  3.9M  5.9G   1% /dev/shmtmpfs                            5.9G  9.1M  5.9G   1% /runtmpfs                            5.9G     0  5.9G   0% /sys/fs/cgrouptmpfs                            5.9G   88K  5.9G   1% /tmp/dev/sda2                        477M  131M  317M  30% /boot/dev/sda1                        200M  9.5M  191M   5% /boot/efi/dev/mapper/fedora_hostname-home  360G  222G  134G  63% /homeroot ~ # cat /proc/sys/dev/cdrom/infoCD-ROM information, Id: cdrom.c 3.20 2003/12/17drive name:drive speed:drive # of slots:Can close tray:Can open tray:Can lock tray:Can change speed:Can select disk:Can read multisession:Can read MCN:Reports media changed:Can play audio:Can write CD-R:Can write CD-RW:Can read DVD:Can write DVD-R:Can write DVD-RAM:Can read MRW:Can write MRW:Can write RAM:root ~ # ls /dev/sr*ls: cannot access /dev/sr*: No such file or directoryroot ~ # wodim --deviceswodim: No such file or directory. Cannot open SCSI driver!For possible targets try 'wodim --devices' or 'wodim -scanbus'.For possible transport specifiers try 'wodim dev=help'.For IDE/ATAPI devices configuration, see the file README.ATAPI.setup fromthe wodim documentation.root ~ # lshw -C disk*-disk                         description: ATA Disk       product: ST500LT012-1DG14       vendor: Seagate       physical id: 0.0.0       bus info: scsi@0:0.0.0       logical name: /dev/sda       version: SDM1       serial: S3P3RLS3       size: 465GiB (500GB)       capabilities: gpt-1.00 partitioned partitioned:gpt       configuration: ansiversion=5 guid=7ae6e531-9898-4c7c-8c35-41b4fdb9374a logicalsectorsize=512 sectorsize=4096Expected output from above, this taken from the system, while a dvd was mounted, which is often successful, I need to know why the disks can disconnect/umount/dissapear at any time.*-disk                                                                          description: ATA Disk                                                      product: ST500LT012-1DG14                                                  vendor: Seagate                                                            physical id: 0.0.0                                                         bus info: scsi@0:0.0.0                                                     logical name: /dev/sda                                                     version: SDM1                                                              serial: S3P3RLS3                                                           size: 465GiB (500GB)                                                       capabilities: gpt-1.00 partitioned partitioned:gpt                         configuration: ansiversion=5 guid=7ae6e531-9898-4c7c-8c35-41b4fdb9374a logicalsectorsize=512 sectorsize=4096                                     *-cdrom                                                                         description: DVD-RAM writer                                                product: DVD+-RW GU90N                                                     vendor: HL-DT-ST                                                           physical id: 0.0.0                                                         bus info: scsi@1:0.0.0                                                     logical name: /dev/cdrom                                                   logical name: /dev/sr0       logical name: /run/media/username/MOUNTPOINT       version: A100       capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram       configuration: ansiversion=5 mount.fstype=udf mount.options=ro,nosuid,nodev,relatime,uid=1000,gid=1000,umask=77,iocharset=utf8 state=mounted status=ready     *-medium          physical id: 0          logical name: /dev/cdrom          logical name: /run/media/username/MOUNTPOINT          configuration: mount.fstype=udf mount.options=ro,nosuid,nodev,relatime,uid=1000,gid=1000,umask=77,iocharset=utf8 state=mountedroot ~ # ejecteject: /dev/cdrom: not found mountpoint or device with the given nameroot ~ # eject -teject: /dev/cdrom: not found mountpoint or device with the given nameroot ~ # cat /var/log/messages | grep udisksSep 21 05:15:08 Hostname udisksd[3366]: Mounted /dev/sr0 at /run/media/username/MOUNTPOINT on behalf of uid 1000Sep 21 11:52:27 Hostname udisksd[3366]: Cleaning up mount point /run/media/username/MOUNTPOINT (device 11:0 no longer exist)Sep 21 21:46:56 Hostname udisksd[3366]: Mounted /dev/sr0 at /run/media/username/MOUNTPOINT on behalf of uid 1000Sep 22 00:30:06 Hostname udisksd[3366]: Cleaning up mount point /run/media/username/MOUNTPOINT (device 11:0 no longer exist)Behaviour of the dvd drive, disk's and dvd's are mounted in /run/media/username/MOUNTPOINT and work, but then they can disconnect at any time, and when they disconnect, they don't show up anywhere in the system, and I am unable to eject the disk.When I close the lid, the laptop is set to sleep, I did this 4 hours ago, and when I revoke it one hour ago the dvd in the drive got mounted in /run/media/username/MOUNTPOINT.This is how it is now:root ~ # df -hFilesystem                       Size  Used Avail Use% Mounted on/dev/dm-3                         89G   63G   21G  76% /devtmpfs                         5.8G     0  5.8G   0% /devtmpfs                            5.9G   80K  5.9G   1% /dev/shmtmpfs                            5.9G  968K  5.9G   1% /runtmpfs                            5.9G     0  5.9G   0% /sys/fs/cgrouptmpfs                            5.9G   20K  5.9G   1% /tmp/dev/mapper/fedora_hostname-home  360G  222G  134G  63% /home/dev/sda2                        477M  131M  317M  30% /boot/dev/sda1                        200M  9.5M  191M   5% /boot/efi/dev/sr0                         6.7G  6.7G     0 100% /run/media/username/MOUNTPOINTHere is the output of the cd-drive command: pastebinHere is the output of the cd-info command: pastebin
CD disk not detected by Fedora on my Laptop
fedora;mount;automounting;dvd