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Laptop DVD missing from Device Manager


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9 replies to this topic

#1 Dave73

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Posted 07 September 2012 - 11:54 PM

Working on daughter's Acer Aspire 7520 laptop.
DVD quit working back some months ago.
Can you fix it Pop?

DVD missing from device manager and also from Windows Explorer.
Found original DVD installation in inf DEV file.

Did the Regedit... delete upper/lower filters thing. No help.

DVD hardware seems OK, placed DVD in my laptop and it works fine.
Placed my DVD in Acer laptop.... does not function.

Reinstalled OS (Vista Home Premium) from hidden partition using ACER tools.
No change in DVD problem.

Reviewed all I could find on ACER web site regarding Aspire 7520... nothing.

Tore down computer and inspected internal connections, especially the hardware
that connects the DVD. Everything in proper order. No wear and tear. Computer is
in otherwise good shape. Fixed a Power Buttom issue with super glue.

Any suggestions would be appreciated.

Old Dave

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#2 Dave73

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Posted 08 September 2012 - 12:03 AM

Some Additional info.

Deleted two (2) programs pertaining to DVDs. No help.

"SCAN for Hardware Changes" from the device manager.... detects nothing.

DVD will eject by pushing button. Place a CD in DVD and the READ light comes on.
So... it's getting power and functioning internally. I just don't think that it's
communicating with the computer for some reason. I've flip flopped back and forth
about whether it's a hardware or a software issue. I'm leaning toward Software!!!

Old Dave

#3 hamluis

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Posted 08 September 2012 - 07:50 AM

Have you tried MS Fixit, Optical Drives - http://support.microsoft.com/kb/982116 ?

Louis

#4 Dave73

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Posted 08 September 2012 - 10:34 AM

Yes... I had run it before, but repeated it today to make sure.
No joy.

#5 Artrooks

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Posted 08 September 2012 - 10:54 AM

Have you tried to run a bootable CD at startup to see if it works before windows loads? Maybe a Linux Live CD?

Regards,
Brooks



 


#6 Dave73

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Posted 08 September 2012 - 12:10 PM

Yes... tried that. Apparantly won't boot since it doesn't know the drive is there.

I looked at error messages in the System event logs using computer management and
every time the computer boots, get an EventID 7026 - and identifies that the
following boot_start driver failed to load: cdrom

Just before that, each boot, is an EventID error 7000 stating that "the parallel
port driver service failed to start due to the following error: the service
cannot be started either because it is disabled or it has no enabled devices
associated with it".

Not sure teh 7000 is signifcant? There is no parallel port on this machine.

#7 Dave73

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Posted 08 September 2012 - 12:13 PM

I am leaving town for a few days. Am returning laptop to daugher while gone and would
like to take this back up in about a week. Is that OK? Let me know how to proceed.

#8 Dave73

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Posted 08 September 2012 - 12:14 PM

I may have a linux CD around... if not I'll get one and try that.

#9 Artrooks

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Posted 08 September 2012 - 01:58 PM

Dave73,

Is the DVDROM enabled and recognized in BIOS?

This looks like a different "Fixit." Event ID 7000 or 7026 is logged in the System log on a computer that is running Windows 7, Windows Vista, Windows Server 2008 R2, or Windows Server 2008


I am leaving town for a few days.


Whenever you get back is fine.

Regards,
Brooks



 


#10 narenxp

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Posted 08 September 2012 - 03:37 PM

DVD missing from device manager and also from Windows Explorer.


This is most likely a hardware issue.

Removing filters would have helped you if DVD drive was detected by device manager

System event logs using computer management and
every time the computer boots, get an EventID 7026 - and identifies that the
following boot_start driver failed to load: cdrom


cdrom.sys tries to communicate between DVD drive and OS but fails which is being logged in event viewer.




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