I think I'm experiencing the same problem now after updating Ubuntu. Same hardware and driver setup as the others. The tracker says these bugs were fixed, but does that mean 'apt-get update && apt-get upgrade' should solve my issue? It doesn't seem to change anything.

output from show-seat:

	Id=seat0
	ActiveSession=c3
	CanMultiSession=yes
	CanTTY=yes
	CanGraphical=yes
	Sessions=c3 c2
	IdleHint=no
	IdleSinceHint=1410592992324421
	IdleSinceHintMonotonic=314779186


output from seat-status:

seat0
	Sessions: *c3 c2
	 Devices:
		  ├─/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
		  │ input:input1 "Power Button"
		  ├─/sys/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input0
		  │ input:input0 "Power Button"
		  ├─/sys/devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0
		  │ drm:card0
		  ├─/sys/device...0000:00/0000:00:02.0/0000:01:00.1/sound/card2
		  │ sound:card2 "NVidia"
		  │ ├─/sys/device...00:00:02.0/0000:01:00.1/sound/card2/input16
		  │ │ input:input16 "HDA NVidia HDMI/DP,pcm=3"
		  │ ├─/sys/device...00:00:02.0/0000:01:00.1/sound/card2/input17
		  │ │ input:input17 "HDA NVidia HDMI/DP,pcm=7"
		  │ ├─/sys/device...00:00:02.0/0000:01:00.1/sound/card2/input18
		  │ │ input:input18 "HDA NVidia HDMI/DP,pcm=8"
		  │ └─/sys/device...00:00:02.0/0000:01:00.1/sound/card2/input19
		  │   input:input19 "HDA NVidia HDMI/DP,pcm=9"
		  ├─/sys/devices/pci0000:00/0000:00:0a.0/0000:03:00.0/usb8
		  │ usb:usb8
		  ├─/sys/devices/pci0000:00/0000:00:0a.0/0000:03:00.0/usb9
		  │ usb:usb9
		  ├─/sys/devices/pci0000:00/0000:00:12.0/usb4
		  │ usb:usb4
		  │ ├─/sys/device...0000:00:12.0/usb4/4-1/4-1:1.0/input/input20
		  │ │ input:input20 "SteelSeries World of War...O Gaming Mouse"
		  │ ├─/sys/device...0000:00:12.0/usb4/4-5/4-5:1.0/input/input21
		  │ │ input:input21 "Corsair Corsair Vengeance K90 Keyboard"
		  │ ├─/sys/device...0000:00:12.0/usb4/4-5/4-5:1.1/input/input22
		  │ │ input:input22 "Corsair Corsair Vengeance K90 Keyboard"
		  │ └─/sys/device...0000:00:12.0/usb4/4-5/4-5:1.2/input/input23
		  │   input:input23 "Corsair Corsair Vengeance K90 Keyboard"
		  ├─/sys/devices/pci0000:00/0000:00:12.2/usb1
		  │ usb:usb1
		  ├─/sys/devices/pci0000:00/0000:00:13.0/usb5
		  │ usb:usb5
		  │ ├─/sys/device...0000:00:13.0/usb5/5-3/5-3:1.0/input/input14
		  │ │ input:input14 "Logitech Gaming Mouse G502"
		  │ └─/sys/device...0000:00:13.0/usb5/5-3/5-3:1.1/input/input15
		  │   input:input15 "Logitech Gaming Mouse G502"
		  ├─/sys/devices/pci0000:00/0000:00:13.2/usb2
		  │ usb:usb2
		  ├─/sys/devices/pci0000:00/0000:00:14.2/sound/card0
		  │ sound:card0 "SB"
		  │ ├─/sys/devices/pci0000:00/0000:00:14.2/sound/card0/input10
		  │ │ input:input10 "HDA ATI SB Line Out Surround"
		  │ ├─/sys/devices/pci0000:00/0000:00:14.2/sound/card0/input11
		  │ │ input:input11 "HDA ATI SB Line Out CLFE"
		  │ ├─/sys/devices/pci0000:00/0000:00:14.2/sound/card0/input12
		  │ │ input:input12 "HDA ATI SB Line Out Side"
		  │ ├─/sys/devices/pci0000:00/0000:00:14.2/sound/card0/input13
		  │ │ input:input13 "HDA ATI SB Front Headphone"
		  │ ├─/sys/devices/pci0000:00/0000:00:14.2/sound/card0/input6
		  │ │ input:input6 "HDA ATI SB Front Mic"
		  │ ├─/sys/devices/pci0000:00/0000:00:14.2/sound/card0/input7
		  │ │ input:input7 "HDA ATI SB Rear Mic"
		  │ ├─/sys/devices/pci0000:00/0000:00:14.2/sound/card0/input8
		  │ │ input:input8 "HDA ATI SB Line"
		  │ └─/sys/devices/pci0000:00/0000:00:14.2/sound/card0/input9
		  │   input:input9 "HDA ATI SB Line Out Front"
		  ├─/sys/device...0000:00/0000:00:14.4/0000:04:07.0/sound/card1
		  │ sound:card1 "DG"
		  ├─/sys/devices/pci0000:00/0000:00:14.5/usb6
		  │ usb:usb6
		  ├─/sys/devices/pci0000:00/0000:00:16.0/usb7
		  │ usb:usb7
		  ├─/sys/devices/pci0000:00/0000:00:16.2/usb3
		  │ usb:usb3
		  ├─/sys/devices/platform/pcspkr/input/input5
		  │ input:input5 "PC Speaker"
		  ├─/sys/devices/platform/vesa-framebuffer.0/graphics/fb0
		  │ [MASTER] graphics:fb0 "VESA VGA"
		  ├─/sys/devices/virtual/misc/kvm
		  │ misc:kvm
		  └─/sys/devices/virtual/misc/rfkill
		    misc:rfkill