*** This bug is a duplicate of bug 198319 ***
https://bugs.launchpad.net/bugs/198319
** This bug has been marked a duplicate of bug 198319
Lenovo 3000 N200 DVD-rom missing
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Notebook - Matshita UJ-850 DVD drive not recognised
https://bugs.launchpad.net/bugs/221895
You received this bug
I think this issue is closely related to bug #198319
(https://bugs.launchpad.net/ubuntu/+bug/198319/comments/9/?loggingout=1)
and should be reopened.
I've attached kernel messages and pci output, hope it will help.
$ lspci -vnn
00:00.0 Host bridge [0600]: Intel Corporation Mobile
Hi Belzecue,
If you are still interested in debugging, would you please attach your
dmesg output (when the drive if not recognized) as well as the output of
'sudo lspci -vvnn'. Thanks.
** Changed in: linux (Ubuntu)
Status: New = Incomplete
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Notebook - Matshita UJ-850 DVD drive not
After reinstalling Vista, I then installed WUBI under Vista, and in this
configuration when running Ubuntu 8.04 the CD/DVD drive is recognised.
I do not know why the CD/DVD is recognised in Ubuntu 8.04 when installed
under WUBI but not when installed directly to the drive via the Live CD.
I am
I have a workaround for this issue: set 'acpi=off' at kernel boot.
I discovered this by comparing the kernel boot options used by the Live
CD with those used after installation to disk.
I will test and see what acpi functionality I have lost with the option
switched on. But at least I can now
With the acpi=off workaround, ubuntu loses all battery configuration
functions (predictably).
Also, now that I know this issue is acpi-related, I googled and found
these similar reports, where for this model of notebook the CD/DVD unit
is unrecognised after installing Fedora, Debian, Ubuntu:
Tried adding kernel boot option: combined_mode=libata and it's variation
combined_mode=ide
No change.
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Notebook - Matshita UJ-850 DVD drive not recognised
https://bugs.launchpad.net/bugs/221895
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http://www.thinkwiki.org/wiki/Problems_with_SATA_and_Linux#DVD_drive_not_recognized
says...
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DVD drive not recognized
The ata_piix SATA driver grabs ownership over the IDE ports when it is
loaded, but (by default) does not support PATA ATAPI devices such as the
Ultrabay optical drives.
More background here...
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.15/+bug/8196
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yeti wrote on 2007-02-22: (permalink)
High Priority ?
This problem is a subset of 85578.
Apparently first identified 2 1/2 years ago and still not fixed Is anyone at
Ubuntu really
Note also that I've switched between AHCI and 'compatibility' mode in
the BIOS with no luck.
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Notebook - Matshita UJ-850 DVD drive not recognised
https://bugs.launchpad.net/bugs/221895
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
** Changed in: linux (Ubuntu)
Sourcepackagename: None = linux
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Notebook - Matshita UJ-850 DVD drive not recognised
https://bugs.launchpad.net/bugs/221895
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
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