The reader is working with kernel 3.3.0 on Thinkpad T420 (I used Fedora
kernel 3.3.0-8.fc16.x86_64, but I guess it should work with vanilla
kernel as well). Hopefully it might help someone since it was quite PITA
to find out how to make the reader work.
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It's not a duplicate of 773524, after that bug is fixed Ricoh e823 card
readers (multiple Thinkpad T420) still can't read SD cards. My thinkpad
and comments 48 66 59 on bug 773524 confirm it.
** This bug is no longer a duplicate of bug 773524
[Toshiba Tecra R850] SD card reader doesn't work
*** This bug is a duplicate of bug 773524 ***
https://bugs.launchpad.net/bugs/773524
Perhaps it is solution for this bus
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773524/comments/13
** This bug has been marked a duplicate of bug 773524
[Toshiba Tecra R850] SD card reader
When I insert Transend 16GB SD card (card is working, it is work fine on
my camera and on eeepc 1000 card reader) kernel say following
[13625.214835] mmc0: Timeout waiting for hardware interrupt.
[13625.214846] sdhci: === REGISTER DUMP (mmc0)===
[13625.214856] sdhci: Sys addr:
Problem doesn't resolved in Natty with 2.6.39-3-generic (Lenovo Thinkpad
X220)
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https://bugs.launchpad.net/bugs/717435
Title:
[MAVERICK] Ricoh e823 Media card reader not functional
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I can confirm this still isn't resolved in Natty with kernel
2.6.39-0-generic (Lenovo Thinkpad X220)
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https://bugs.launchpad.net/bugs/717435
Title:
[MAVERICK] Ricoh e823 Media card
This is still a problem in Natty, even after upgrading to linux-
image-2.6.39-0-generic from kernel-ppa.
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Title:
[MAVERICK] Ricoh e823 Media card
It appears that this patch appears to enable the card reader, it fails to
mount/use/unmount MMC cards successfully. We are seeing failures on two
Toshiba R850 (Intel and AMD) laptops with the 11.04 release of Natty.
The output from lspci is:
* System peripheral: Ricoh Co Ltd Device e823 (rev
The Toshiba laptops (R850) appeared to have similar problems, but it
appears the Lenovo laptop mentioned here works with SD (but not MMC),
and the Toshiba laptops don't work with either. A new bug has been
opened for the Toshiba laptops (Intel and AMD R850) here:
WRT to comment #7, that is from a conversation I had with upstream. We
are still waiting on the BIOS vendor to tell is what magic to use with
PCI configuration writes in the driver to turn off the MMC function in
the controller. Unfortunately the bios vendor is located in Japan and
they are not in
This bug was fixed in the package linux - 2.6.35-28.49
---
linux (2.6.35-28.49) maverick-proposed; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #726796
[ Colin Ian King ]
* SAUCE: Dell All-In-One: Remove need for Dell module alias
[ Manoj Iyer ]
*
** Tags added: verification-done-maverick
** Tags removed: verification-needed-maverick
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Title:
[MAVERICK] Ricoh e823 Media card reader not
I tested the -28 #48 kernel in proposed on T420 and I was able to use
the SD card
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Title:
[MAVERICK] Ricoh e823 Media card reader not functional
** Tags added: verification-needed-maverick
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Title:
[MAVERICK] Ricoh e823 Media card reader not functional
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This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-
needed-release' to 'verification-done-release'.
If verification is not done by one week from
This bug was fixed in the package linux - 2.6.38-4.31
---
linux (2.6.38-4.31) natty; urgency=low
[ Andy Whitcroft ]
* add in bugs closed by upstream patches pulled in by rebases
* rebase to 795abaf1e4e188c4171e3cd3dbb11a9fcacaf505
* [Config] enable CONFIG_VSX to allow use of
** Description changed:
Image: 10.10
BIOS: 8DET25WW (0.25 )
- Platform: X220-Tablet
CPU: Sandy Bridge
GPU: Integrated
Card Reader: Ricoh Co Ltd Device e823 (rev 04)
Summary:
Media card reader not functional. When inserting SD, MMC, SDHC card, no
action occurs.
Steps
** Also affects: linux (Ubuntu Maverick)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Natty)
Importance: Medium
Assignee: Manoj Iyer (manjo)
Status: New
** Changed in: linux (Ubuntu Maverick)
Status: New = Fix Committed
** Changed in: linux
SRU JUSTIFICATION
==
EFFECT
===
MMC card reader does not recognize SD/MMC/SDHC cards
FIX
===
Patch adds RICOH pci id 0xe823, this enables this card reader on x220, and
other lenovo platforms.
TESTING
This patch was tested and reported to work on Lenovo plarform.
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