Allright done that with (Linux 3.10.0-031000rc5-generic #201306082135 SMP Sun Jun 9 01:36:22 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux)
First I removed the workaround stuff, namely: sudo echo acpiphp >> /etc/modules: Modify /etc/default/grub to have: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pciehp_force=1 pciehp_poll_mode=1" Result: Card is not detected when plugging it in after boot. Now I wanted to check if the workaround helps, but modprobe acpiphp FATAL: Module acpiphp not found. Plus my Computer won't boot when the card is inserted, log: [ 0.869378] xhci_hcd 0000:05:00.0: xHCI Host Controller [ 0.869382] xhci_hcd 0000:05:00.0: new USB bus registered, assigned bus number 3 [ 1.785834] tsc: Refined TSC clocksource calibration: 2292.554 MHz [ 1.785840] Switching to clocksource tsc - here it hangs until the card is removed - [ 13.253006] xhci_hcd 0000:05:00.0: can't setup [ 13.253012] xhci_hcd 0000:05:00.0: USB bus 3 deregistered [ 13.253076] xhci_hcd 0000:05:00.0: init 0000:05:00.0 fail, -19 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/999462 Title: ExpressCard34 slot not hotplugable after boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/999462/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs