Quote from vendor:
======
Update the issue debug status:
(1) We don't have Dell E5440 NoteBook at WH now; and we can't reproduce
this issue by our platform.
(2) We reviewed the our register setting; and don't find any issue.
(3) We suspect this issue may cause by BIOS and Platform feature setting
conflicted with our sdhci-pci-o2micro setting.
We are asking Dell for schematic for Our Card Reader Chip now.
By the way, do you have this notebook or not?
In order to do get more info, could you help us to get lspci log for following
3 log:
a. Use Kernel 3.13.0-031300 and Cold boot to Linux, Then "lspci -vxxxx
> log1"
b. Use Kernel 3.16 or newer and Cold boot to Linux, Then "lspci -vxxxx >
log2".
c. Then Reboot the OS, this time the card reader will disappear. Then
"lspci -vxxxx > log3".
=======
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https://bugs.launchpad.net/bugs/1346067
Title:
[Dell Latitude E5440] O2 Card reader [1217:8520] could not be detected
after rebooting this system
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