Bug#776959: linux-image-3.16.0-4-amd64: [regression] sd card reader in retina macbook pro no longer working
On Tue, Feb 3, 2015 at 7:58 PM, Ben Hutchings <ben@decadent.org.uk> wrote:
> Control: tag -1 important
>
> On Tue, 2015-02-03 at 15:39 +0000, lkcl wrote:
>> Package: src:linux
>> Version: 3.16.7-ckt2-1
>> Severity: important
>>
>> after upgrading from 3.13 where the built-in sd card worked perfectly,
>> there is no longer even any kernel events or anything remotely indicating
>> that the apple sd card reader is recognised.
>>
>> i note that there is a similar bug
>> https://lists.debian.org/debian-kernel/2014/09/msg00170.html
>>
>> however this is for an entirely different laptop.
> [...]
>
> And a different device ID.
yeh.
> Which driver is being used in 3.13?
well... as rebooting the machine to find out would be too disruptive
(termination of dozens of long-running programs) i can't directly find
out immediately, so i did some investigation.
according to these:
https://usb-ids.gowdy.us/read/UD/05ac
https://wiki.debian.org/InstallingDebianOn/Apple/MacBookPro/11-1#lsusb
it should be 0a5c:8406
(i have the same hardware as on the debian page)
but what's startling is that the expected usb device is... *entirely
missing* from lsusb. i mean it's _gone_. so this is going to have to
be something that i will need to schedule a reboot when it is
convenient to do so, and find out if it reappears under 3.13.
but before i do that, what i'm doing to do is an s2disk, and make
sure that the power adaptor is not plugged in at the time (it causes
*massive* EMI spiking which causes me to get electric shocks off of
the aluminium casing if i touch a well-earthed ground point, and
causes the logs to be filled up every second with SATA hard resets).
give me a few minutes i'll make a report with the findings.
l.
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