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sudoku

Member

Registered: 2012-10-31

Posts: 95

[SOLVED?] My optical drive has disappeared

Hi,

I have a Thinkpad Edge E520 and the internal optical drive does not appear in the devices. This is not a new install, but it is fully updated. The drive was working fine a few days ago. Now, even if I press the physical eject button, nothing happens.

$ ls /dev/{cdrom,sr0,dvd}
ls: cannot access /dev/cdrom: No such file or directory
ls: cannot access /dev/sr0: No such file or directory
ls: cannot access /dev/dvd: No such file or directory
$ lsmod | grep cdrom
cdrom                  47479  1 sr_mod
$ eject -v
eject: using default device `/dev/cdrom'
eject: device name is `/dev/cdrom'
eject: /dev/cdrom: not mounted
eject: /dev/cdrom: not found mountpoint or device with the given name
$ dmesg | egrep -i --color 'cdrom|dvd|cd/rw|writer'
$ <-- No output
$ sudo lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
03:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 07)
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
$ sudo hwinfo --cdrom
$ <-- No output

What happened to my drive? Could it be because of the kernel upgrade?

Last edited by sudoku (2015-02-10 18:25:59)

framas

Member

Registered: 2009-07-24

Posts: 50

Re: [SOLVED?] My optical drive has disappeared

Have you checked that the drive is correctly mounted in the bay? What happens if you remove and reinsert it?

Have you checked dmesg for output of you optical drive?

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,803

Re: [SOLVED?] My optical drive has disappeared

Does the version of the running kernel as reported by uname -a 
match the installed kernel version and its modules as provided by pacman -Qi linux
?

---

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Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
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sudoku

Member

Registered: 2012-10-31

Posts: 95

Re: [SOLVED?] My optical drive has disappeared

@ framas It's an internal optical drive.
@ ewaller The kernel version is 3.18.6-1 for both uname and pacman

$ uname-a
Linux soapbox 3.18.6-1-ARCH #1 SMP PREEMPT Sat Feb 7 08:44:05 CET 2015 x86_64 GNU/Linux
$ pacman -Qi linux
Name           : linux
Version        : 3.18.6-1
...

Thanks all for the replies. I woke up this morning and the laptop suddenly started to recognise the optical drive. I have no idea why it wouldn't find it yesterday.
If I have more trouble, I will reopen the issue (maybe a hardware problem?).