Would like to give something a bit more useful than "me too" but I'm afraid I don't comre with much more than me being in karmic and having the same problems described by the toppost. Stays stable afterwards for a random amount of time then will occur again. Sometimes occurs again after a suspend/resume cycle as well.

--snip--
[    7.464679] heci driver initialization successful.
[    7.552847] usb 6-1: configuration #1 chosen from 1 choice
[    7.560956] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.0/input/input8
[    7.561000] generic-usb 0003:046D:C526.0004: input,hidraw3: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-0000:00:1d.0-1/input0
[    7.565834] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.1/input/input9
[    7.565890] generic-usb 0003:046D:C526.0005: input,hiddev96,hidraw4: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1d.0-1/input1
[    7.612815] ip_tables: (C) 2000-2006 Netfilter Core Team
[    7.842740] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[    7.842796] HDA Intel 0000:00:1b.0: setting latency timer to 64
[    8.230444] e1000e 0000:00:19.0: irq 25 for MSI/MSI-X
[    8.281532] e1000e 0000:00:19.0: irq 25 for MSI/MSI-X
[    8.281894] ADDRCONF(NETDEV_UP): eth0: link is not ready
[    8.293904] usbcore: registered new interface driver snd-usb-audio
[    8.351171] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input10
[    9.761938] i2c-adapter i2c-3: unable to read EDID block.
[    9.761941] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[    9.766358] i2c-adapter i2c-3: unable to read EDID block.
[    9.766360] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   10.475362] i2c-adapter i2c-3: unable to read EDID block.
[   10.475366] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   10.480687] i2c-adapter i2c-3: unable to read EDID block.
[   10.480691] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   10.680799] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[   10.681261] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   10.801065] ppdev: user-space parallel port driver
[   12.167592] CPU0 attaching NULL sched-domain.
[   12.167596] CPU1 attaching NULL sched-domain.
[   12.201327] CPU0 attaching sched-domain:
[   12.201331]  domain 0: span 0-1 level MC
[   12.201333]   groups: 0 1
[   12.201338] CPU1 attaching sched-domain:
[   12.201340]  domain 0: span 0-1 level MC
[   12.201342]   groups: 1 0
[   13.084468] i2c-adapter i2c-3: unable to read EDID block.
[   13.084471] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   13.088895] i2c-adapter i2c-3: unable to read EDID block.
[   13.088897] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   13.183734] RPC: Registered udp transport module.
[   13.183737] RPC: Registered tcp transport module.
[   13.782651] i2c-adapter i2c-3: unable to read EDID block.
[   13.782654] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   13.787064] i2c-adapter i2c-3: unable to read EDID block.
[   13.787065] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   13.810214] svc: failed to register lockdv1 RPC service (errno 97).
[   14.474146] i2c-adapter i2c-3: unable to read EDID block.
[   14.474149] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   14.479146] i2c-adapter i2c-3: unable to read EDID block.
[   14.479149] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   15.782165] i2c-adapter i2c-3: unable to read EDID block.
[   15.782167] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   15.786578] i2c-adapter i2c-3: unable to read EDID block.
[   15.786579] i915 0000:00:02.0: HDMI Type A-2: no EDID data
[   21.520037] eth0: no IPv6 routers present
[ 1472.290078] usb 3-2: USB disconnect, address 3