Comment 62 for bug 271019

Revision history for this message
John Doe (jodo-deactivatedaccount1) wrote : Re: [Bug 271019] Re: kernel does not detect card reader if card is inserted in reader before boot

I added pciehp.pciehp_force=1 to boot/grub/menu.lst and now the right hand card reader works.

Thanks

Geoffrey P Griffiths
604.521.8609

________________________________
From: andypiper <email address hidden>
To: <email address hidden>
Sent: Tue, October 20, 2009 2:06:25 AM
Subject: [Bug 271019] Re: kernel does not detect card reader if card is inserted in reader before boot

Again, if you add pciehp.pciehp_force=1 to the kernel boot line on the
latest Karmic 9.10 kernel, the right-hand card reader should work and be
hot-swappable.

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kernel does not detect card reader if card is inserted in reader before boot
https://bugs.launchpad.net/bugs/271019
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of the bug.

Status in “linux” package in Ubuntu: Confirmed

Bug description:
Binary package hint: linux

udev only enumerates a device if SD or other card is already present during boot.

$ lsb_release -rd
Description: Ubuntu intrepid (development branch)
Release: 8.10

$ lspci
01:00.0 System peripheral: JMicron Technologies, Inc. Device 2382
01:00.2 SD Host controller: JMicron Technologies, Inc. Device 2381
01:00.3 System peripheral: JMicron Technologies, Inc. Device 2383
01:00.4 System peripheral: JMicron Technologies, Inc. Device 2384

this happens for both controllers on my acer aspire one running 8.10

dpkg -l|grep udev
ii udev 124-3 rule-based device node and kernel event mana

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