A150LB. Used to dual-boot Intrepid (with Linpus) and the SD card readers worked fine in both.

Did a clean install of Ubuntu 9.04 Netbook Remix. All the wifi instability seems to be at an end and it seems to work really well - except that it doesn't seem to recognize the SD card readers - not if they're present at boot, not if I insert afterwards.

Elsewhere someone suggested a modification to : /boot/grub/menu.lst
but this didn't make any difference.

I'm a linux newbie so I may be missing something obvious to old hands.

No, I'm afraid SD card readers are the one of the issues we deal with alot. Not many open source drivers for em! Not sure why they've stopped. Can you post results of

I see you tried the Jaunty fix, but did you go back in the Ubuntu AAO wiki and look at the card reader info for 8.04 ? Maybe some of that labor is still required..

https://help.ubuntu.com/community/As...20Aspire%20One

http://wiki.debian.org/DebianAcerOne#Cardreader

I hadn't, thanks for the links, I shall look into it.

As an update, I find I was wrong about the fix not working. I can get both my readers now to work with a 2gb card but it won't work with my 8gb sdhc card. I don't actually have 2gb cards - except the one in my camera - I've been using the 8gb since I got the AAO.

00:00.0 Host bridge: Intel Corporation Mobile 945GME Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
03:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
04:00.0 System peripheral: JMicron Technologies, Inc. SD/MMC Host Controller
04:00.2 SD Host controller: JMicron Technologies, Inc. Standard SD Host Controller
04:00.3 System peripheral: JMicron Technologies, Inc. MS Host Controller
04:00.4 System peripheral: JMicron Technologies, Inc. xD Host Controller

these are the relevant lines from your post. Something like this may help: http://www.linuxquestions.org/questi...ubuntu-536646/ and http://sourceforge.net/projects/sdricohcs/.

Make sure to update the firmware of your card reader.
For my imagemate card reader, it's under
http://www.sandisk.com/Retail/Default.aspx?CatID=1562

Apparently bad luck for me. The 20-90-03029 won't support SDHC.
I did not try yet.

According to wikipedia http://en.wikipedia.org/wiki/SD_card ,
the media ID string il longer on SDHC cards.
Trouble ahead on old readers. Would be nice if the
media ID could be ignored, and the card size directly read from
the partition table.

The NDA story for the drivers shows again how
open source programmers bravely struggle ... and win!

Congrats! And big thanks to all programmers that made linux to what it is now.