Hi Po-Hsu,
I am Vendor who is to check this issue.
Sorry for I don't tell you clearly in last talk. Before use lspci
command, We need to get root privilege first; otherwize the log will be
not contail enough information.
Below is the update steps:
a. Use Kernel 3.13.0-031300 and Cold boot to Linux, Then "sudo su" to get
root privilege and "lspci -vxxxx > log1"
b. Use Kernel 3.16 or newer and Cold boot to Linux, Then "sudo su" to get
root privilege and "lspci -vxxxx > log2".
c. Then Reboot the OS, this time the card reader will disappear. Then "sudo
su" to get root privilege and "lspci -vxxxx > log3".
I am really very sorry to trouble. Could you get the log again, thanks.
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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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