Public bug reported:
Actual: delays of about 1 second, mouse and keyboard do not work
Expected: no delays. But I would not mention delays of about 0.05 sec.
I am seeing arbitrary intermittent delays of about one second when I do:
a) switching from one desktop workspace to another (1 second or a bit more,
mouse and keyboard do not work)
b) launching programs like opera (but not only), keyboard and mouse do not work
for about 1 second
c) the newest adobe flash plug-in changes frames with a frequency of about 1
second
d) mplayer starts/stops playing with a delay (but usually less than one second)
e) if I have two opened instances of mplayer, one of them on pause, the other
is inadequately slow.
I suspect that this is due to the same constant of 1 second meaning a timeout
task rotation interval or something.
The system monitor shows that both CPU cores are under some 50% load, there is
free memory (sometimes 50% and 0% of swap), and the HD LED is not blinking.
These misfeatures look unrelated, but what's common is that:
1) Under Hardy I do not have any of these problems (yes, I still have a Hardy
partition).
2) I have seen the same problem in Oneiric, but it was even worse, and this is
why I installed Natty
One more related feature that may be a clue is that I have seen strange
behaviour of the system monitor under Oneiric: for one of the
processors, it was drawing a normal line, while for the other it was
drawing spikes. (I had 3 versions of the system monitor at the same
time: one that came by default, one came with xfce and one with gnome.
Or maybe one of them came with KDE which I also had then.)
Probably, the delay only happens on one of the two cores.
Anyway, I have seen this problem in both Natty and Oneiric, and in
Oneiric it's worse.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
AcpiTables: Error: command ['gksu', '-D', 'Apport', '--',
'/usr/share/apport/dump_acpi_tables.py'] failed with exit code 255:
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
Cannot stat file /proc/1789/fd/82: No such file or directory
USER PID ACCESS COMMAND
/dev/snd/controlC0: mg 1532 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'SB'/'HDA ATI SB at 0x84000000 irq 16'
Mixer name : 'Analog Devices AD1981'
Components : 'HDA:11d41981,103c30c2,00100200
HDA:11c11040,103c1378,00100200'
Controls : 11
Simple ctrls : 9
Date: Wed Nov 16 02:44:30 2011
HibernationDevice: RESUME=UUID=8c5e3388-c9dc-49c0-9b88-38f12a85dc31
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426)
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MachineType: Hewlett-Packard HP Compaq 6715b (KE067EA#ACB)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
LANGUAGE=en_US:en
LANG=ru_RU.UTF-8
LC_MESSAGES=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: root=UUID=82727dfb-1bba-40e8-99ca-3d80a07723c0 ro quiet
splash
RelatedPackageVersions:
linux-restricted-modules-2.6.38-8-generic N/A
linux-backports-modules-2.6.38-8-generic N/A
linux-firmware 1.52
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
Nov 15 13:54:46 whitewhale dhclient: parse_option_buffer: malformed option
dhcp.netinfo-server-address (code 112): option length exceeds option buffer
length.
Nov 15 19:06:47 whitewhale dhclient: DHCPREQUEST of 10.225.52.165 on eth0 to
10.100.25.3 port 67
Nov 15 19:06:47 whitewhale dhclient: DHCPACK of 10.225.52.165 from
10.199.25.203
Nov 15 19:06:47 whitewhale dhclient: bound to 10.225.52.165 -- renewal in
78660 seconds.
dmi.bios.date: 03/04/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68YTT Ver. F.0B
dmi.board.name: 30C2
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 71.2D
dmi.chassis.asset.tag: CNU8291FL3
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68YTTVer.F.0B:bd03/04/2008:svnHewlett-Packard:pnHPCompaq6715b(KE067EA#ACB):pvrF.0B:rvnHewlett-Packard:rn30C2:rvrKBCVersion71.2D:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq 6715b (KE067EA#ACB)
dmi.product.version: F.0B
dmi.sys.vendor: Hewlett-Packard
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug natty
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https://bugs.launchpad.net/bugs/890907
Title:
one-second intermittent delays at arbitrary moments
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