When I move the mouse (both internal touchpad and external Bluetooth) on the X display the movement gets uneven, as the computer had too high CPU load and other programs (like glxgears) get slowed down. In the output of "top" there are 4 "kslowdXXX" processes taking a lot of CPU.
I am on Maverick with the following kernel:
till@till:~/ghostscript/gpl/gs-test$ uname -a
Linux till 2.6.35-6-generic #9-Ubuntu SMP Thu Jul 1 03:01:23 UTC 2010 x86_64 GNU/Linux
till@till:~/ghostscript/gpl/gs-test$
Graphics is Intel.
After googling I found this thread which seems to discuss exactly the same problem:
http://www.gossamer-threads.com/lists/linux/kernel/1238374
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: till 3413 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc020000 irq 48'
Mixer name : 'Conexant CX20561 (Hermosa)'
Components : 'HDA:14f15051,17aa211c,00100000'
Controls : 14
Simple ctrls : 7
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7VHT12WW-1.01'
Mixer name : 'ThinkPad EC 7VHT12WW-1.01'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
DistroRelease: Ubuntu 10.10
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=9185f036-2e72-40e6-bf31-d9a8926a7883
MachineType: LENOVO 7417CTO
Package: linux (not installed)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-6-generic root=/dev/mapper/hostname-root ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.35-6.9-generic 2.6.35-rc3
Regression: Yes
RelatedPackageVersions: linux-firmware 1.37
Reproducible: Yes
Tags: maverick graphics regression-potential needs-upstream-testing
Uname: Linux 2.6.35-6-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 10/13/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7UET79WW (3.09 )
dmi.board.name: 7417CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7UET79WW(3.09):bd10/13/2009:svnLENOVO:pn7417CTO:pvrThinkPadT400:rvnLENOVO:rn7417CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7417CTO
dmi.product.version: ThinkPad T400
dmi.sys.vendor: LENOVO
Here is my "top" output:
top - 13:24:21 up 16 days, 14:33, 6 users, load average: 1.60, 1.73, 1.71
Tasks: 223 total, 4 running, 218 sleeping, 1 stopped, 0 zombie
Cpu(s): 3.1%us, 49.5%sy, 0.0%ni, 47.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 3953252k total, 3780616k used, 172636k free, 324108k buffers
Swap: 8388604k total, 220556k used, 8168048k free, 1180376k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3789 root 15 -5 0 0 0 S 28 0.0 2607:46 kslowd003
3444 root 15 -5 0 0 0 S 26 0.0 2609:18 kslowd002
3314 root 15 -5 0 0 0 S 21 0.0 2611:34 kslowd001
1785 root 15 -5 0 0 0 R 18 0.0 2609:47 kslowd000
20649 till 20 0 808m 309m 13m S 1 8.0 197:57.58 firefox-bin
13238 till 20 0 281m 23m 5628 R 1 0.6 16:32.12 xchat
3436 till 20 0 179m 44m 2432 S 1 1.2 223:07.37 skype.real
20736 till 20 0 57248 5184 1088 R 1 0.1 85:47.43 npviewer.bin