As in the title, I've got this problem with my Kubuntu 12.04.
At first I've thought that the whole system was hung, but it happened again 5 minutes ago and, while the keyboard and the touchpad stopped working, the music was still playing, so I guess that's just an "input" problem, because the system was still working!
Any solution?
Is there some data that you need to know about my setup?
EDIT:
Added my lshw outout
description: Notebook
product: N53SV ()
vendor: ASUSTeK Computer Inc.
version: 1.0
serial: B2N0AS17695408A
width: 64 bits
capabilities: smbios-2.6 dmi-2.6 vsyscall32
configuration: boot=normal chassis=notebook family=N uuid=8083F2DA-A43E-E081-3F3F-BCAEC55F8AA1
*-core
description: Motherboard
product: N53SV
vendor: ASUSTeK Computer Inc.
physical id: 0
version: 1.0
serial: BSN12345678901234567
slot: MIDDLE
*-firmware
description: BIOS
vendor: American Megatrends Inc.
physical id: 0
version: N53SV.214
date: 08/10/2011
size: 64KiB
capacity: 2496KiB
capabilities: pci upgrade shadowing cdboot bootselect edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification
*-cpu
description: CPU
product: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz
serial: To Be Filled By O.E.M.
slot: CPU 1
size: 800MHz
capacity: 4GHz
width: 64 bits
clock: 100MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx lahf_lm ida arat epb xsaveopt pln pts tpr_shadow vnmi flexpriority ept vpid cpufreq
configuration: cores=4 enabledcores=1 threads=2
*-cache
description: L1 cache
physical id: 5
slot: L1-Cache
size: 32KiB
capacity: 32KiB
capabilities: internal write-back instruction
*-memory
description: System Memory
physical id: 40
slot: System board or motherboard
size: 10GiB
*-bank:0
description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)
product: 99U5428-040.A00LF
vendor: Kingston
physical id: 0
serial: 103C28C3
slot: ChannelA-DIMM0
size: 4GiB
width: 64 bits
clock: 1333MHz (0.8ns)
*-bank:1
description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)
product: HMT325S6BFR8C-H9
vendor: Hynix/Hyundai
physical id: 1
serial: 58383D1F
slot: ChannelA-DIMM1
size: 2GiB
width: 64 bits
clock: 1333MHz (0.8ns)
*-bank:2
description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)
product: HMT325S6BFR8C-H9
vendor: Hynix/Hyundai
physical id: 2
serial: 58183D19
slot: ChannelB-DIMM0
size: 2GiB
width: 64 bits
clock: 1333MHz (0.8ns)
*-bank:3
description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)
product: HMT325S6BFR8C-H9
vendor: Hynix/Hyundai
physical id: 3
serial: 58183C8F
slot: ChannelB-DIMM1
size: 2GiB
width: 64 bits
clock: 1333MHz (0.8ns)
*-pci
description: Host bridge
product: 2nd Generation Core Processor Family DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 09
width: 32 bits
clock: 33MHz
configuration: driver=agpgart-intel
resources: irq:0
*-pci:0
description: PCI bridge
product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
vendor: Intel Corporation
physical id: 1
bus info: pci@0000:00:01.0
version: 09
width: 32 bits
clock: 33MHz
capabilities: pci pm msi pciexpress normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:40 ioport:d000(size=4096) memory:db000000-dc0fffff ioport:c0000000(size=301989888)
*-generic UNCLAIMED
description: Unassigned class
product: Illegal Vendor ID
vendor: Illegal Vendor ID
physical id: 0
bus info: pci@0000:01:00.0
version: ff
width: 32 bits
clock: 66MHz
capabilities: bus_master vga_palette cap_list
configuration: latency=255 maxlatency=255 mingnt=255
resources: memory:db000000-dbffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:d000(size=128) memory:dc000000-dc07ffff
*-display
description: VGA compatible controller
product: 2nd Generation Core Processor Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:47 memory:dc400000-dc7fffff memory:b0000000-bfffffff ioport:e000(size=64)
*-communication
description: Communication controller
product: 6 Series/C200 Series Chipset Family MEI Controller #1
vendor: Intel Corporation
physical id: 16
bus info: pci@0000:00:16.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list
configuration: driver=mei latency=0
resources: irq:48 memory:df00b000-df00b00f
*-usb:0
description: USB controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci_hcd latency=0
resources: irq:16 memory:df008000-df0083ff
*-multimedia
description: Audio device
product: 6 Series/C200 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 05
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:49 memory:df000000-df003fff
*-pci:1
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:41 ioport:c000(size=4096) memory:de600000-deffffff ioport:d4200000(size=10485760)
*-pci:2
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2
vendor: Intel Corporation
physical id: 1c.1
bus info: pci@0000:00:1c.1
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:42 ioport:b000(size=4096) memory:ddc00000-de5fffff ioport:d3700000(size=10485760)
*-network
description: Wireless interface
product: AR9285 Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 01
serial: 48:5d:60:f2:2c:fd
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.2.0-24-generic firmware=N/A ip=192.168.1.6 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:17 memory:ddc00000-ddc0ffff
*-pci:3
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:43 ioport:a000(size=4096) memory:dd200000-ddbfffff ioport:d2c00000(size=10485760)
*-usb
description: USB controller
product: FL1000G USB 3.0 Host Controller
vendor: Fresco Logic
physical id: 0
bus info: pci@0000:04:00.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:19 memory:dd200000-dd20ffff
*-pci:4
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 6
vendor: Intel Corporation
physical id: 1c.5
bus info: pci@0000:00:1c.5
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:44 ioport:9000(size=4096) memory:dc800000-dd1fffff ioport:d2100000(size=10485760)
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: eth0
version: 06
serial: bc:ae:c5:5f:8a:a1
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8168e-2.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:46 ioport:9000(size=256) memory:d2104000-d2104fff memory:d2100000-d2103fff
*-usb:1
description: USB controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci_hcd latency=0
resources: irq:23 memory:df007000-df0073ff
*-isa
description: ISA bridge
product: HM65 Express Chipset Family LPC Controller
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: latency=0
*-storage
description: SATA controller
product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
logical name: scsi0
logical name: scsi2
version: 05
width: 32 bits
clock: 66MHz
capabilities: storage msi pm ahci_1.0 bus_master cap_list emulated
configuration: driver=ahci latency=0
resources: irq:45 ioport:e0b0(size=8) ioport:e0a0(size=4) ioport:e090(size=8) ioport:e080(size=4) ioport:e060(size=32) memory:df006000-df0067ff
*-disk
description: ATA Disk
product: ST9750420AS
vendor: Seagate
physical id: 0
bus info: scsi@0:0.0.0
logical name: /dev/sda
version: 0002
serial: 5WS0A7QR
size: 698GiB (750GB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 signature=e0c5913d
*-volume:0
description: Windows FAT volume
vendor: MSDOS5.0
physical id: 1
bus info: scsi@0:0.0.0,1
logical name: /dev/sda1
version: FAT32
serial: 4ce5-3acb
size: 3004MiB
capacity: 3004MiB
capabilities: primary fat initialized
configuration: FATs=2 filesystem=fat
*-volume:1
description: EXT4 volume
vendor: Linux
physical id: 2
bus info: scsi@0:0.0.0,2
logical name: /dev/sda2
logical name: /
version: 1.0
serial: c198cc2a-d86a-4460-a4d5-3fc0b21e439c
size: 28GiB
capacity: 28GiB
capabilities: primary journaled extended_attributes large_files huge_files dir_nlink recover extents ext4 ext2 initialized
configuration: created=2012-03-15 16:53:54 filesystem=ext4 lastmountpoint=/ modified=2012-05-02 18:52:04 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered mounted=2012-05-09 19:06:01 state=mounted
*-volume:2
description: Windows NTFS volume
physical id: 3
bus info: scsi@0:0.0.0,3
logical name: /dev/sda3
version: 3.1
serial: 4c1cdebc-ec09-2947-a3b5-c1f9f1cddc1c
size: 152GiB
capacity: 152GiB
capabilities: primary bootable ntfs initialized
configuration: clustersize=4096 created=2011-02-22 16:02:47 filesystem=ntfs label=OS state=clean
*-volume:3
description: Extended partition
physical id: 4
bus info: scsi@0:0.0.0,4
logical name: /dev/sda4
size: 514GiB
capacity: 514GiB
capabilities: primary extended partitioned partitioned:extended
*-logicalvolume:0
description: Linux swap / Solaris partition
physical id: 5
logical name: /dev/sda5
capacity: 10GiB
capabilities: nofs
*-logicalvolume:1
description: HPFS/NTFS partition
physical id: 6
logical name: /dev/sda6
capacity: 504GiB
*-cdrom
description: DVD-RAM writer
product: BD-MLT UJ240AS
vendor: MATSHITA
physical id: 1
bus info: scsi@2:0.0.0
logical name: /dev/cdrom
logical name: /dev/cdrw
logical name: /dev/dvd
logical name: /dev/dvdrw
logical name: /dev/sr0
version: 1.00
capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
configuration: ansiversion=5 status=nodisc
*-serial UNCLAIMED
description: SMBus
product: 6 Series/C200 Series Chipset Family SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 05
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:df005000-df0050ff ioport:e040(size=32)