It appears you may have a hardware issue after looking at your dmesg output.
[ 17.704958] mmcblk0: error -84 transferring data, sector 7, nr 1, cmd response 0x900, card status 0x0 [ 17.704964] end_request: I/O error, dev mmcblk0, sector 7 [ 19.328027] eth0: no IPv6 routers present [ 20.600065] usb 6-1: device descriptor read/64, error -110 [ 36.472051] usb 6-1: device descriptor read/64, error -110 [ 36.689059] usb 6-1: new low-speed USB device number 3 using uhci_hcd [ 44.742392] audit_printk_skb: 154 callbacks suppressed [ 44.742398] type=1400 audit(1384315535.011:27): apparmor="DENIED" operation="open" parent=1 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=1858 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0 [ 52.352166] usb 6-1: device descriptor read/64, error -110 [ 61.279316] uhci_hcd 0000:04:00.0: host system error, PCI problems? [ 61.279323] uhci_hcd 0000:04:00.0: host controller process error, something bad happened! [ 61.279327] uhci_hcd 0000:04:00.0: host controller halted, very bad! [ 61.279344] uhci_hcd 0000:04:00.0: HCRESET not completed yet! [ 61.279352] uhci_hcd 0000:04:00.0: HC died; cleaning up [ 61.279363] uhci_hcd 0000:04:00.1: host system error, PCI problems? [ 61.279366] uhci_hcd 0000:04:00.1: host controller process error, something bad happened! [ 61.279390] ehci_hcd 0000:04:00.2: HC died; cleaning up [ 61.279420] pcmcia_socket pcmcia_socket0: pccard: card ejected from slot 0 ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1250726 Title: ubuntu 12.04 dell laptop inspiron 6000 pci-card usb ports sudden death To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1250726/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
