[Bug 258446] Re: JMicron internal card reader recognizes SD only when inserted at startup

[Claudio Viano]

For this card reader to work on Acer laptops (that is the subject of
this bug) we must force its unmask with the kernel parameter
pciehp.pciehp_force=1 as Steven said (not force=0, that is counter
productive),  but then the computer won't suspend with a card mounted;
to correct this follow the instructions found in the wiki page for the
Aspire One: https://help.ubuntu.com/community/AspireOne/Ubuntu9.10, the
Aspire One has a Jmicron card reader as well.

So the hack workaround exists, but it's a hack workaround in fact, I'm
not expert enough to say wether it's the optimal solution. I've read
somewhere that this card reader has power management that is lost with
the force on option.

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JMicron internal card reader recognizes SD only when inserted at startup
https://bugs.launchpad.net/bugs/258446
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