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** Changed in: linux (Ubuntu)
This annoying problem still persist. Is there a fix or workaround
available by now?
Thanks!
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Title:
spam of change events from drm/card0
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Could someone tell me if she/he has a fix/workaround for this bug on *Lucid* ?
Can I kill the thing that generates the event? Can I tell some driver to
completely ignore it?
I don't care if that's a manual workaround, as long as it remains on Lucid /
I tried to install Kernel 2.6.35, but this
** Changed in: linux
Importance: Unknown = Medium
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Title:
spam of change events from drm/card0
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** Changed in: linux
Importance: Medium = Unknown
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Title:
spam of change events from drm/card0
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Recently I've bought a Lenovo SL510 and I can confirm that the bug still exists.
I'm running Arch Linux and have tried various combinations of different kernels
(2.6.36, 2.6.37 and even 2.6.38-rc2) and xorg intel drivers. Thus it is not
related to Ubuntu but seems to be a serious issue among
I am hit by this problem since I have installed 9.10 on Asus UL80AG
notebook. The reliably working solution was sudo killall udevd. After
reading the latest posts I have updated to 10.10 but I am afraid I
cannot confirm that the bug is gone. Actually, the i915 is still
flooding the system with
I installed Kubuntu 10.10 replacing my old Xubuntu 10.04 and have used
it for a few days and haven't been hit by this bug anymore even after
running many 3D apps. Mobo: Intel DG45ID, chipset X4500HD.
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Confirmimg Timo Wiren, i too have the DG45ID motherboard. Updated from
ubuntu 9.10 - 10.10 and haven't seen this bug since, yy! :)
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On Fri, Sep 17, 2010 at 11:18, BrodocK brod...@gmail.com wrote:
I'm getting this anoying messages too, but at my computer it's consuming
a lot more then 5, 10% (usualy like 40 or 45%).
Doing a sudo udevadm --env I get lot of this kind of messages:
UDEV [1284732819.189823] change
I'm getting this anoying messages too, but at my computer it's consuming
a lot more then 5, 10% (usualy like 40 or 45%).
Doing a sudo udevadm --env I get lot of this kind of messages:
UDEV [1284732819.189823] change /devices/pci:00/:00:02.0/drm/card0
(drm)
UDEV_LOG=3
ACTION=change
** Tags added: patch
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Hi,
I just installed 10.04 x86_64 from scratch on a DG43GT, and this hit me
as well. *Very* annoying, pretty much defeats the purpose of having a
Core 2 Duo Quad :-(
I disabled udev and event storm has ceased. Of course, this is not
ideal, I hope this gets fixed soon.
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spam of change events
Nicholas: your patch looks sensible to me.
I guess I should mention that I have an interesting situation because my
work computer is suffering from this (change events flood) issue but my
home computer has Intel DG45ID board, referenced above as an example of
a board that has troubles with the
The patch http://bugzilla.kernel.org/attachment.cgi?id=24339 contains
the code that can be removed in case BIOS is not used for the VBT setup.
This code has been currently dropped from the vanilla kernel, if I've
understood correctly. I think the best fix would be to keep this code
but to skip VBT
Nicholas: is that patch really correct? The proposed patch at
freedesktop.org uses |= operator with value zero and your patch uses
operator = with value zero. As a result, your patch will reset all
bits in the bit mask hotplug_supported_mask opposed to doing practically
nothing in the
Mikko -- you are correct, very embarrassing :( It didn't end up working
anyway, but I'm not convinced i'm using the new modules I'm compiling--
perhaps they are loaded from initrd? I wasn't making a new one each
time. I've added a unique MODULE_VERSION this time to be double sure (is
there another
I've collected the following patches together and managed to apply them
to ubuntu-karmic.git. Fair warning: I'm not a expert in this area so I
didn't do any sanity checking beyond a clean make...
* drm/i915: parse child device from VBT
* drm/i915: Don't set up DP ports that aren't in the BIOS
After 2 days of testing, this patch seems to fix the issue for me. No
more spam of change event messages in udev, and udev cpu usage is back
to normal.
Note, it's unclear to me how the patch would effect folks using, say,
HDMI outputs with this chip. Someone who has such hardware needs should
http://bugs.freedesktop.org/show_bug.cgi?id=25259 seems to be closer to
this bug then the current remote bug watch (despite the title), and also
includes a proposed patch to stop the interrupt storm:
http://bugs.freedesktop.org/attachment.cgi?id=32825. I will try it out
and report back.
Red Hat
i had this problem until I ran :
sudo service udev start
I tried all sorts of things, killing udev and related processes, nothing
worked, I had constant disk access and cpu usage. I saw someone
recommend starting then stopping the udev service... oddly, simply
starting it was enough.
I've got
Personally I don't think this is going to be 100% resolved because I've
noticed very similar behavior in Windows on the same box too. I've been
testing this for a long time and it seems that after I boot up Windows
remaining time of the battery shows around 5h. Then I do some heavy
graphical
I have exactly the same problem (Karmic Koala x86_64, i915), and it's
pretty anoying ...
udevadm monitor
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent
KERNEL[1266106984.081222] change
This seems to be fixed (I'm running it right now) in Linux 2.6.32.8:
drm/i915: only enable hotplug for detected outputs
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I was wrong, 2.6.32.8 did NOT fix this for my G45.
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Same problem here, please also see:
http://ubuntuforums.org/showthread.php?p=8774963#post8774963
When will a fix be available? This is a serious problem on a very common
graphics card...
Thanks for your help
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You
** Changed in: linux (Ubuntu)
Status: New = Triaged
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** Changed in: linux
Status: Confirmed = Fix Released
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The patch (after some modifications) did work for me. What I did was:
1) download Ubuntu kernel
2) unpack
3) apply patch
4) make modules
5) copy module to /lib/modules/kernel-version/updates/some/location/i915.ko
6) depmod -a
7) dpkg-reconfigure initramfs-tools
8) reboot
9) verify loaded module by
applied the patch from Lars, but unfortunately the problem still remains
for me :( I only recompiled the i915.ko module, did I miss something?
Using 2.6.31-16-generic (karmic)
KERNEL[1261390492.215156] change /devices/pci:00/:00:02.0/drm/card0
(drm)
UDEV [1261390492.223522] change
The patch attached to comment #35 in the upstrream bug (i915-hotplug-
per-output-fix.patch) does resolve this issue on my system. Udevd mostly
sleeps and udevadm monitor is silent. I'm attaching a patch that works
with the Ubuntu kernel (karmic, 2.6.31-16).
** Attachment added: i915.patch
** Also affects: linux via
https://bugs.freedesktop.org/show_bug.cgi?id=23183
Importance: Unknown
Status: Unknown
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** Changed in: linux
Status: Unknown = Confirmed
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looks like the folks upstream are actively working on this...lets hope
for a solution soon!
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Confirming for Ubuntu 9.10 64-bit, intel G45/X4500, Acer Veriton M670G,
2.6.31-9-rt #152-Ubuntu SMP PREEMPT RT
udevd randomly starts to eat CPU (sometimes takes about one core of E8400,
right now udevd takes about 1-2% even though I constantly see drm change events
in the udevadm monitor)
The
I can confirm that 2.6.32 did not fix this bug.
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i agree with scott. this is a kernel bug in the intel graphics driver.
i think its related with power management, it seems to be correlated with
putting the monitor into standby.
and the linked freedesktop bug is not related imho (at least the output
is completely different).
quite annoying
I'm affected by this bug on Kubuntu 9.10 64-bit, Intel G45 (X4500HD).
udevd eats over 20 % of my Core2 Duo 2,5 GHz.
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