Public bug reported:
After a fresh install of Karmic I have been experiencing frequent
freezes. I haven't applied any workarounds, or added repositories or
fancy plugins, and the system is as was out-of-the-box. Most of the
times it happens if I listen to music while I do some other operation
which involves the use of the mouse and the appearance of some graphical
output (a drop-down menu, a new window open, an old one maximised from
the system tray, etc.). The combination of these two events most of the
times results in the music got stuck on two notes repeated for two or
three seconds at short distance intervals, then everything gets back to
normal. Other times I'm not so lucky, and the sound (most times music,
but can just as well be system notifications or the likes) keeps going
on forever in a loop, and the only thing to stop it is a cold reboot.
The computer becomes totally unresponsive, nothing works, not even the
mouse or the power button (set to Shutdown in the Power Management
Preferences). Video itself, however, never gave me problems of any sort,
that is I've been playing movies and the system never froze. Anyway, I
never had these problems on Intrepid or Jaunty running on the same
hardware.
In the System Log messages, last entries before freezes usually report
variations of the following:
Nov 2 12:07:06 ECO pulseaudio[1564]: ratelimit.c: 159 events suppressed
Nov 2 12:27:48 ECO pulseaudio[1564]: ratelimit.c: 149 events suppressed
Nov 2 12:28:23 ECO pulseaudio[1564]: ratelimit.c: 68 events suppressed
Nov 2 13:49:25 ECO pulseaudio[1564]: ratelimit.c: 165 events suppressed
Nov 2 14:16:36 ECO pulseaudio[1564]: ratelimit.c: 158 events suppressed
Nov 2 14:44:56 ECO pulseaudio[1564]: ratelimit.c: 32 events suppressed
Nov 2 14:45:06 ECO pulseaudio[1564]: ratelimit.c: 31 events suppressed
Nov 2 14:58:38 ECO pulseaudio[1564]: ratelimit.c: 35 events suppressed
Nov 2 15:41:22 ECO pulseaudio[1564]: ratelimit.c: 156 events suppressed
Nov 2 15:51:33 ECO pulseaudio[1564]: ratelimit.c: 149 events suppressed
Nov 2 15:54:12 ECO pulseaudio[1564]: ratelimit.c: 141 events suppressed
Nov 2 16:01:17 ECO pulseaudio[1564]: ratelimit.c: 152 events suppressed
Nov 2 16:04:33 ECO pulseaudio[1564]: ratelimit.c: 105 events suppressed
Nov 2 16:07:33 ECO pulseaudio[1564]: ratelimit.c: 76 events suppressed
Nov 2 16:50:53 ECO pulseaudio[1564]: ratelimit.c: 108 events suppressed
Nov 2 17:17:22 ECO pulseaudio[1564]: ratelimit.c: 65 events suppressed
Nov 2 17:39:09 ECO pulseaudio[1564]: ratelimit.c: 143 events suppressed
Nov 2 17:48:51 ECO pulseaudio[1564]: ratelimit.c: 161 events suppressed
Nov 2 18:16:49 ECO pulseaudio[1564]: ratelimit.c: 137 events suppressed
Nov 2 18:43:58 ECO pulseaudio[1564]: ratelimit.c: 129 events suppressed
Nov 2 18:47:36 ECO pulseaudio[1564]: ratelimit.c: 155 events suppressed
Nov 2 19:35:40 ECO pulseaudio[1564]: ratelimit.c: 173 events suppressed
Nov 2 19:37:20 ECO pulseaudio[1564]: ratelimit.c: 88 events suppressed
Nov 2 19:39:23 ECO pulseaudio[1564]: ratelimit.c: 66 events suppressed
Nov 2 20:09:16 ECO pulseaudio[1564]: ratelimit.c: 159 events suppressed
Nov 2 22:52:33 ECO pulseaudio[1564]: ratelimit.c: 81 events suppressed
Nov 3 00:33:33 ECO pulseaudio[1564]: ratelimit.c: 62 events suppressed
Nov 3 00:39:26 ECO pulseaudio[1564]: ratelimit.c: 76 events suppressed
Nov 3 02:17:41 ECO pulseaudio[1564]: ratelimit.c: 161 events suppressed
Nov 3 02:47:30 ECO pulseaudio[1564]: ratelimit.c: 153 events suppressed
Nov 3 02:49:19 ECO kernel: [59669.083978] [drm] LVDS-8: set mode 1024x768 d
Nov 3 02:49:21 ECO kernel: [59671.086380] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:22 ECO kernel: [59671.576399] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:22 ECO kernel: [59672.002693] i2c-adapter i2c-1: unable to read
EDID block.
Nov 3 02:49:22 ECO kernel: [59672.002699] i915 0000:00:02.0: LVDS-1: no EDID
data
Nov 3 02:49:22 ECO kernel: [59672.073907] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:23 ECO kernel: [59672.565154] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:23 ECO kernel: [59673.016260] i2c-adapter i2c-1: unable to read
EDID block.
Nov 3 02:49:23 ECO kernel: [59673.016265] i915 0000:00:02.0: LVDS-1: no EDID
data
Nov 3 02:49:26 ECO kernel: [59675.919048] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:27 ECO kernel: [59676.409317] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:27 ECO kernel: [59676.834220] i2c-adapter i2c-1: unable to read
EDID block.
Nov 3 02:49:27 ECO kernel: [59676.834226] i915 0000:00:02.0: LVDS-1: no EDID
data
Nov 3 02:49:27 ECO kernel: [59676.913321] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:27 ECO kernel: [59677.403661] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:28 ECO kernel: [59677.829195] i2c-adapter i2c-1: unable to read
EDID block.
Nov 3 02:49:28 ECO kernel: [59677.829201] i915 0000:00:02.0: LVDS-1: no EDID
data
Nov 3 02:49:28 ECO kernel: [59677.941029] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:29 ECO kernel: [59678.432021] [drm] DAC-6: set mode 640x480 0
Nov 3 02:49:29 ECO kernel: [59678.856995] i2c-adapter i2c-1: unable to read
EDID block.
Nov 3 02:49:29 ECO kernel: [59678.857000] i915 0000:00:02.0: LVDS-1: no EDID
data
Nov 3 02:49:37 ECO pulseaudio[28780]: ratelimit.c: 4 events suppressed
Nov 3 02:49:56 ECO kernel: [59706.456193] [drm] LVDS-8: set mode 13
I never saw anything like this on Jaunty or Intrepid. Why does the
System Log get flooded with these ratelimit.c warnings, and how is it
connected to the freezes (if it is)?
I'm on a Thinkpad R50e. VGA compatible controller: Intel Corporation
82852/855GM Integrated Graphics Device (rev 02). Display controller:
Intel Corporation 82852/855GM Integrated Graphics Device (rev 02).
Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01). I'm not sure what
other information to submit when not reporting bugs through Apport, but
I will be glad to provide any missing detail. Many thanks!
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: block edid freeze i2c-1 i2c-adapter intel ratelimit.c sound thinkpad
--
Karmic: frequent freezes
https://bugs.launchpad.net/bugs/479296
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