I cancelled that. Between 3.0.19 and 3.0.20 there are only two changes and only one of them can be related to my problem:
stefan@stefanspc:~/ubuntu-oneiric$ git log --oneline 691d6a674a8c31c4abddd0f0142e6642cfe110cf..27996a4c72c3c36bb7e8a3ceed7d0defbaa81040 27996a4 Linux 3.0.20 df89d48 PCI: Rework ASPM disable code <<<<<<<<< This one is it 5c2fab4 UBUNTU: SAUCE: acer-wmi: support for P key on TM8372 Following the instructions on http://wireless.kernel.org/en/users/Documentation/ASPM#Linux_kernel_ASPM_support I was able to fix the problem by disabling ASPM on the PCI bus 00:1c.2 which is shared by the ethernet interface (tg3) and the SD/MMC card reader using the following command. setpci -s 00:1c.2 0x50.B=0x40 So I have a good work-around now. Is it a BIOS bug? Then how can we tell ACER that they have to fix it? Or is it possible to include a permanent work-around into future Releases of the Linux Kernel? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1178131 Title: 14e4:16bc SD card slot not working on Acer Aspire One 756 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1178131/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs