I also have keyboard lockups on Ubuntu Maverick with KDE 4.5.5 (kubuntu-
desktop packages on top of a Gnome install). Ctrl-Alt-F1 does *not* work
when the keyboard is locked up, in my case. This is the laptop keyboard,
not a USB keyboard, on a Dell Pavilion dv8 ea1110. (Not quite the same
system as the original poster, but close.)
A workaround is to software-suspend and resume -- presumably hibernate
would also work -- and then the keyboard responds again. I can't
remember whether Caps Lock works (I have Caps Lock swapped with Esc, so
that might be misleading anyway).
I've bound 'konsole -e watch cat /proc/interrupts' to a panel icon, so
the next time it happens I should be able to see whether I'm getting
keyboard interrupts. Currently I can see one of the fields incrementing
by two for each keypress, so I know which field to look at.
Also using binary NVidia drivers at the moment, but I don't have any
reason to believe it's related to that. When I was using the nv drivers
this problem would still happen occasionally.
$ lspci --nn
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DMI [8086:d132]
(rev 11)
00:03.0 PCI bridge [0604]: Intel Corporation Core Processor PCI Express Root
Port 1 [8086:d138] (rev 11)
00:08.0 System peripheral [0880]: Intel Corporation Core Processor System
Management Registers [8086:d155] (rev 11)
00:08.1 System peripheral [0880]: Intel Corporation Core Processor Semaphore
and Scratchpad Registers [8086:d156] (rev 11)
00:08.2 System peripheral [0880]: Intel Corporation Core Processor System
Control and Status Registers [8086:d157] (rev 11)
00:08.3 System peripheral [0880]: Intel Corporation Core Processor
Miscellaneous Registers [8086:d158] (rev 11)
00:10.0 System peripheral [0880]: Intel Corporation Core Processor QPI Link
[8086:d150] (rev 11)
00:10.1 System peripheral [0880]: Intel Corporation Core Processor QPI Routing
and Protocol Registers [8086:d151] (rev 11)
00:1a.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset
USB2 Enhanced Host Controller [8086:3b3c] (rev 05)
00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series Chipset
High Definition Audio [8086:3b56] (rev 05)
00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI
Express Root Port 1 [8086:3b42] (rev 05)
00:1c.1 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI
Express Root Port 2 [8086:3b44] (rev 05)
00:1c.4 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI
Express Root Port 5 [8086:3b4a] (rev 05)
00:1c.7 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI
Express Root Port 8 [8086:3b50] (rev 05)
00:1d.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset
USB2 Enhanced Host Controller [8086:3b34] (rev 05)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge
[8086:2448] (rev a5)
00:1f.0 ISA bridge [0601]: Intel Corporation Mobile 5 Series Chipset LPC
Interface Controller [8086:3b03] (rev 05)
00:1f.2 SATA controller [0106]: Intel Corporation 5 Series/3400 Series Chipset
6 port SATA AHCI Controller [8086:3b2f] (rev 05)
00:1f.3 SMBus [0c05]: Intel Corporation 5 Series/3400 Series Chipset SMBus
Controller [8086:3b30] (rev 05)
01:00.0 VGA compatible controller [0300]: nVidia Corporation GT216 [GeForce GT
230M] [10de:0a28] (rev a2)
01:00.1 Audio device [0403]: nVidia Corporation High Definition Audio
Controller [10de:0be2] (rev a1)
02:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6200
[8086:4239] (rev 35)
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 03)
04:00.0 FireWire (IEEE 1394) [0c00]: JMicron Technology Corp. IEEE 1394 Host
Controller [197b:2380]
04:00.1 System peripheral [0880]: JMicron Technology Corp. SD/MMC Host
Controller [197b:2382]
04:00.2 SD Host controller [0805]: JMicron Technology Corp. Standard SD Host
Controller [197b:2381]
04:00.3 System peripheral [0880]: JMicron Technology Corp. MS Host Controller
[197b:2383]
04:00.4 System peripheral [0880]: JMicron Technology Corp. xD Host Controller
[197b:2384]
ff:00.0 Host bridge [0600]: Intel Corporation Core Processor QuickPath
Architecture Generic Non-Core Registers [8086:2c52] (rev 04)
ff:00.1 Host bridge [0600]: Intel Corporation Core Processor QuickPath
Architecture System Address Decoder [8086:2c81] (rev 04)
ff:02.0 Host bridge [0600]: Intel Corporation Core Processor QPI Link 0
[8086:2c90] (rev 04)
ff:02.1 Host bridge [0600]: Intel Corporation Core Processor QPI Physical 0
[8086:2c91] (rev 04)
ff:03.0 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller [8086:2c98] (rev 04)
ff:03.1 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Target Address Decoder [8086:2c99] (rev 04)
ff:03.4 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Test Registers [8086:2c9c] (rev 04)
ff:04.0 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Channel 0 Control Registers [8086:2ca0] (rev 04)
ff:04.1 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Channel 0 Address Registers [8086:2ca1] (rev 04)
ff:04.2 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Channel 0 Rank Registers [8086:2ca2] (rev 04)
ff:04.3 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Channel 0 Thermal Control Registers [8086:2ca3] (rev 04)
ff:05.0 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Channel 1 Control Registers [8086:2ca8] (rev 04)
ff:05.1 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Channel 1 Address Registers [8086:2ca9] (rev 04)
ff:05.2 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Channel 1 Rank Registers [8086:2caa] (rev 04)
ff:05.3 Host bridge [0600]: Intel Corporation Core Processor Integrated Memory
Controller Channel 1 Thermal Control Registers [8086:2cab] (rev 04)
$ dpkg -l nvidia\* | grep ii
ii nvidia-173-modaliases 173.14.28-0ubuntu1
Modaliases for the NVIDIA binary X.Org driver
ii nvidia-96-modaliases 96.43.19-0ubuntu1
Modaliases for the NVIDIA binary X.Org driver
ii nvidia-common 0.2.24
Find obsolete NVIDIA drivers
ii nvidia-current 260.19.06-0ubuntu1
NVIDIA binary Xorg driver, kernel module and VDPAU
library
ii nvidia-current-modaliases 260.19.06-0ubuntu1
Modaliases for the NVIDIA binary X.Org driver
ii nvidia-settings 260.19.06-0ubuntu1
Tool of configuring the NVIDIA graphics driver
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https://bugs.launchpad.net/bugs/134944
Title:
Keyboard locks up randomly while typing
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