After some discussion in upstream maillist, looks the problem is caused
by below commit:
commit a9e0aca4b37885b5599e52211f098bd7f565e749
Author: Eric Dumazet
Date: Wed Mar 14 20:18:32 2012 +
asix: asix_rx_fixup surgery to reduce skb truesizes
asix_rx_fixup() is complex, and does s
Emeric，
>From your usbmon trace, I can find that your TX is extremely slow:
It may take several seconds to complete one packet with
1514bytes.
Could you run upstream kernel(3.4 or 3.5-rcX) first to see if the hardware of
your smsc95xx NIC is OK? And you'd better to test a usb storage t
On Mon, Aug 8, 2011 at 3:36 PM, Robert Hrovat wrote:
> Ming, great for upstream report. But you should mention that also HDD is
> not visible, not only DVD drive.
Robert, but Marc's test indicated HDD is visible and only DVD driver can't
be recognized on 3.0-rc7.
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Robert, it is great to hear the news, thanks for the findings.
If you are interested in looking for the root cause, you may
try to use 'git bisect' to find which commit make both your HDD
and DVD workable. Even you can find which commit does make
DVD not workable in natty tree.
Here is the 10.10
Marc,
Ata maintainer Tejun on upstream kernel has paid attention to
the bug, and he hopes to get the kernel log after changing another optical
driver or try the drive on another controller, so could you help to do the test
and post the kernel log on 3.0-rc1(already installed in the machine)?
See
Also both HDD. and DVD. can be recognized by 2.6.32-longterm kernel tree:
http://git.kernel.org/?p=linux/kernel/git/longterm/linux-2.6.32.y.git;a=summary
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It seems like disable power management of wlan will solve this problem.
You can try to disable the power management of your wlan by running the
following command.
sudo iwconfig wlan0 power off
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Disabling power managaement of wlan doesn't work. After running aMule
for a while, I still get error -110.
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Title:
rt2x00usb_vendor_request: Error
images
successfully on precise beta1.
Thanks your guys' help.
thanks
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** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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Hi Joseph,
On Tue, Mar 6, 2012 at 4:13 AM, Joseph Salisbury
wrote:
> @Ming
>
> I created a new test kernel, which is available at:
>
> http://people.canonical.com/~jsalisbury/lp914319/
Looks the kernel images does fix the oops on my T410.
thanks,
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*** This bug is a duplicate of bug 914319 ***
https://bugs.launchpad.net/bugs/914319
Looks the oops is same with 914319.
https://launchpad.net/bugs/914319
On Thu, Feb 23, 2012 at 8:30 AM, Brad Figg wrote:
> ** Changed in: linux (Ubuntu)
> Status: New => Confirmed
>
> --
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I think the bug has been fixed in 3.3-rc4, and the commit is below:
commit bced76aeaca03b45e3b4bdb868cada328e497847
Author: Peter Zijlstra
Date: Wed Jan 11 13:11:12 2012 +0100
sched: Fix lockup by limiting load-balance retries on lock-break
Bryce, so could you feedback the test result wit
The precise kernel images have been built with the patch in #62 on the
link below:
http://kernel.ubuntu.com/~ming/bugs/872044/
so please feel free to test the precise kernel image to see if it can
fix the issue.
thanks,
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Today I was touched by the issue one time on 3.2.0-12.
[tom@~]$uname -a
Linux tom-ThinkPad-T410 3.2.0-12-generic #20-Ubuntu SMP Fri Jan 27 23:13:36 UTC
2012 x86_64 x86_64 x86_64 GNU/Linux
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Yesterday evening I found the issue triggered on 3.2.0-12.21 about 2 times when
I play a movie inside browser
by wireless network, see attachment for 'dmesg'.
In fact, the issue was not very easy to reproduce for me since generally
I connected my T410 with ethernet.
I remembered that the previo
On Fri, Mar 9, 2012 at 5:10 AM, Axis Mann wrote:
> This is trace I got when I plugged in the USB drive. You need more?
Yes, you need to trace the traffic during the performance test on your
usb mass storage.
thanks,
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Public bug reported:
This could either be a bug in the plasma-desktop package or in the
workrave package. Not sure who to blame.
Steps to reproduce:
1. Do an install of Kubuntu Precise.
2. Start up KDE, install xrestop and workrave.
3. Start xrestop, observe the 'misc' field for the plasma-deskto
** Attachment added: "This is what happens after a few days"
https://bugs.launchpad.net/bugs/966779/+attachment/2952212/+files/xrestop.png
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Title
In theory, the max usb 2.0 bulk transfer speed is 52MB/sec[1], also
for usb mass storage
device, there are CBW(31byte), CSW(13byte) and some control info in DATA packet,
so the actual usb mass storage performance is smaller than 52MB.
Generally usb device can not respond quickly enough to keep pac
I can reproduce the bug on the latest upstream kernel.
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Title:
NULL pointer dereference at sd_revalidate_disk+0x30/0x2a0
To manage notifications
The problem is discussing on upstream kernel mail list, and one patch
has been figured out
to address it.
http://marc.info/?t=13286613702&r=1&w=2
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The latest acked patch for the issue:
http://www.spinics.net/lists/linux-scsi/msg57577.html
On Mon, Feb 20, 2012 at 10:05 PM, Ming Lei wrote:
> The problem is discussing on upstream kernel mail list, and one patch
> has been figured out
> to address it.
>
> http://marc.info/?t=
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
copying files to USB 2.0 drive is damn slow
To manage notifications
*** This bug is a duplicate of bug 914319 ***
https://bugs.launchpad.net/bugs/914319
Looks the oops is same with 914319.
https://launchpad.net/bugs/914319
On Sun, Feb 26, 2012 at 12:00 PM, Brad Figg wrote:
> ** Changed in: linux (Ubuntu)
> Status: New => Confirmed
>
> --
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Public bug reported:
I am sure that I can build upstream kernel about two weeks ago, but now it
can't be done with the latest precise.
See the build log below:
[tom@linux-2.6-next]$CONCURRENCY_LEVEL=`getconf _NPROCESSORS_ONLN` fakeroot
make-kpkg --initrd --append-to-version=-custom kernel_imag
[tom@linux-2.6-next]$CONCURRENCY_LEVEL=`getconf _NPROCESSORS_ONLN`
fakeroot make-kpkg --initrd --append-to-version=-custom kernel_image
kernel_headers
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Joseph, can you build upstream kernel successfully with 'make-kpkg' on the
latest precise?
thanks,
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Title:
upstream kernel can't be built in pr
The issue does exist on 3.2.0-15-generic.
After uninstalling powernap package, the issue doesn't happen any more, so looks
it is caused by powernap stopping and starting cpu frequently.
If I connects my T410 with not very good signal wifi, the problem can be
triggered very easily.
** Changed in:
sleep 0.05
done
thanks
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Title:
NULL pointer dereference at sd_revalidate_disk+0x30/0x2a0
To manage notifications about thi
The usb mouse is disconnected unusually, but it is not the cause
of the slow boot.
The slow boot should be caused by slow XFS mounting, see blow:
[2.523331] hub 1-1.4:1.0: 2 ports detected
[ 58.904178] usb 1-1.2: USB disconnect, device number 4
[ 60.382105] usb 1-1.2: new low-speed USB d
Also could you provide the oops log to us? Or we have no way to
troubleshoot it.
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Title:
Machine crashed after disconnecting USB device
To manage
On Wed, Jun 5, 2013 at 8:42 AM, Barry Bulls <1172...@bugs.launchpad.net> wrote:
>
> ubuntu@ubuntu:~$ dmesg
> [ 384.022264] usb 3-1: USB disconnect, device number 2
Why aren't you so generous to post more logs of 'dmesg' under USB 2.0
case?
Thanks,
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Ming
ed into the USB2.0
> ports. They just don't work at all. However, they work fine under
> Windows.
Sorry, it is hard to guess what is issue without any 'dmesg' log.
Thanks,
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On Fri, Jun 14, 2013 at 2:49 PM, mikewhatever <852...@bugs.launchpad.net> wrote:
> There is a slew of the 8192cu related changes with the 3.2.0-48-generic
> update for Precise, and that seems to provide a fix, and a happy end for
> this bug report. I've un-blacklisted the module, rebooted, and was
Hi Barry and ATIpro,
Could you plug the devices into USB 2.0 port first and run below command
to see if your devices can be found in USB 2.0 bus?
find /sys/bus/usb/devices/*/port*/power/control | while read LINE; do
echo on > ${LINE}; done
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you are sure there is no any ehci interrupts(/proc/interrupts)(see #35)
after plugging the device, I guess that there is no power from the port. And
you can connect your cell phone to the port and check if it is capable of
becoming in charging state.
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Hi,
Could you provide 'dmesg' just after your plug your usb mass storage
device into the 2.0 port?
Also could you try to plug other devices(hub, uvc camera, ...) into the 2.0
port to see if it works?
>From the 'lsusb' log, there are many devices found in the 2.0 bus, so it
is a bit confused that
exited successfully
so that the problem can be diagnosed:
- if 'cpu' child tasks exited abnormally or can't be exited,
the problem might
be in scheduler
- if 'vm' child tasks exited abnormally or can't be exited,
the problem might
On Tue, Jun 4, 2013 at 12:04 PM, Ming Lei wrote:
> On Tue, Jun 4, 2013 at 10:21 AM, Launchpad Bug Tracker
> <1187...@bugs.launchpad.net> wrote:
>> Anthony Wong (anthonywong) has assigned this bug to you for linux-lts-raring
>> in Ubuntu:
>>
>> [Lenovo L530]:
On Wed, Jun 5, 2013 at 1:42 AM, Jeff Marcom wrote:
> marking as invalid. I was able to get this cpu stress to pass multiple
> subsequent attempts.
That is very normal since result of 'stress' depends on actual running
activity of
system very much.
Thanks,
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** Changed in: linux (Ubuntu)
Status: Confirmed => Won't Fix
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Title:
usb modem module crash
To manage notifications about this bug go to:
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
Bluetooth sometimes does not work after resuming from suspend
To ma
Chris,
So suggest you to check if there is 'usb' utility in udev or other system
component in your system,
and definately the warning is from the user space utility.
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On Tue, Jul 23, 2013 at 5:17 PM, chris <1159...@bugs.launchpad.net> wrote:
> Hi Ming Lei,
>
> I'm sorry if I don't understand. Could you please explain how to do
> that?
You should understand that there is one process named as 'usb' which
disconnects your
On Thu, Jul 25, 2013 at 9:11 AM, Ming Lei wrote:
> On Tue, Jul 23, 2013 at 5:17 PM, chris <1159...@bugs.launchpad.net> wrote:
>
> But I am sure how to find it in distribution, and looks no such utility in
> my desktop.
Sorry, s/am/am not
Thanks,
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You
ns.
There should be one file named with 'usb' which is executable in your
filesystem,
any file search utility(find, grep, ls, ...) can be used to do this searching.
Thanks,
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On Mon, Jul 29, 2013 at 5:56 PM, chris <1159...@bugs.launchpad.net> wrote:
> I try my best to understand (though I don't really understand :)) the
> command(s) that I should execute.
>
> Hope following result helps (I ran it while printer unplugged) :
>
> $ dmesg | grep usb
No, it is wrong, and th
*** This bug is a duplicate of bug 1161985 ***
https://bugs.launchpad.net/bugs/1161985
Anyone can run below command to see if the disk can be mounted manually
later?
sudo udisks --inhibit
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I can mount the disk
> manually: It looks like udisks does not do what is expected.
Good, so we can confirm that it is same with 1161985, which may be
related with userspace utility.
Thanks
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Hi,
Please try the images on the below link:
http://kernel.ubuntu.com/~ming/bugs/1197616/v1/
Also the kernel patch can be found on the link.
Thanks,
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On Thu, Jul 4, 2013 at 11:41 AM, Launchpad Bug Tracker
<1197...@bugs.launchpad.net> wrote:
> You have been subscr
*** This bug is a duplicate of bug 1161985 ***
https://bugs.launchpad.net/bugs/1161985
On Thu, May 23, 2013 at 7:40 PM, Robert wrote:
> So what are the next steps?
It depends on user space packages, which I am not familiar with, so
I am afraid I can't help you further.
Thanks,
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see if it can fix
the firmware loading bug?
http://kernel.ubuntu.com/~ming/bugs/1197616/v1/usermodehelper-
enable.patch
Thanks
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Titl
#x27;CONFIG_DEBUG_DRIVER' and post out 'dmesg' info. If you can't, I'd like to
build one kernel with these debug options for your test.
Thanks,
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in/sh
find /sys/bus/usb/devices/*/power/control | while read LINE; do
echo on > ${LINE}; done
Thanks,
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Title:
USB 2.0 Ports Dont
ave no idea on the bug, and reported it on linux-usb list already.
Thanks,
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Title:
USB 2.0 Ports Dont Work on Sony Vaio Laptop
To mana
pgrade to a newer BIOS version?
Or have you done the tests below?
- plug one 2.0 devices to 2.0 port, then power on machine to see
if they can be found in 2.0 bus
If not, I suggest you to give it a try.
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ch ports are being switched over.
Could you do the test and post the log in LP?
Thanks,
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Title:
USB 2.0 Ports Dont Work on Sony Vai
Marc,
Good news, the patch below has been verified that it can fix the
problem.
https://bugzilla.kernel.org/attachment.cgi?id=69612
https://bugzilla.kernel.org/show_bug.cgi?id=40592
I will test the patch on our 390 certification machine this evening(GMT +8).
See you tomor
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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Title:
All external usb devices running at USB 1.1, internal camera and hard
I have tested the patch(https://bugzilla.kernel.org/attachment.cgi?id=69612)
against 3.1-rc3, and found it does fix the problem. The DVD can be recognized
successfully with the patch.
On Tue, Aug 23, 2011 at 3:19 PM, Robert Hrovat wrote:
> Will this patch land in other Ubuntu kernels? Currently o
earlier
Yes, do the same as before, just start to capture usbmon first, then run
'dd'.
BTW, your disabling wifi should be good, but it is safe to do with
below:
sudo rmmod r8192*
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in dmesg and having to do journal replays. I am not sure that the
How can you conclude that the case may result in data corruption on
filesystem on the external device?
In fact, before system suspend, 'sync' has been called to sync all the data
for all the filesystems.
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writing as failure and do not corrupt the whole filesystem.
Could you make sure that the filesystem(REISERFS) on the external device
has been destroyed? If only the single file is affected, it should not be a big
deal.
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t successfully if accesses to the filesystem is
pending or ongoing.
> directly echo mem > /sys/power/state, but at least clicking 'Suspend'
> from the UI would try to do the right thing first, and fail to suspend
> if unmounting was unsuccessful.
>
> Maybe I will just go
n't it?
Just check for /media is still not enough too, someone may mount external
block devices under other directories.
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So how are applications that need mime icons suppose to find them on a
default install of Ubuntu 11.10? All the icons are in the Humanity
folder. Are we expected to look there?
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Looks like same issue is still on upstream kernel, see below
http://marc.info/?t=13200984542&r=1&w=2
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Title:
usb-port don't works (don't see t
** Changed in: linux (Ubuntu Natty)
Status: Fix Committed => Fix Released
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Title:
[Dell optiplex 390][SFF] Dvd drive not recognized by syst
notify linux1394-de...@lists.sf.net[ 373.005783] firewire_core:
skipped bus generations, destroying all nodes
thanks,--
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** Attachment added: "ppp1"
https://bugs.launchpad.net/bugs/881688/+attachment/2615313/+files/ppp1
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Hi,
Also I have reported the issue on upstream kernel:
linux1394-de...@lists.sf.net
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Title:
[Latitude XT3] Firewire
** Tags removed: verification-needed-natty
** Tags added: verification-done-natty
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Title:
DVD drive doesn't work on MacBookPro8,2
To manage notif
l devices.
> issue. If I put the system to sleep through the applet, it will be able
> to automount the firewire hdd after resuming.
OK. I will continue to test by applet(pm_suspend), but need your help
to enable WOL on the machine since you know I have to access the
machine remotely.
than
but the HDD. was not recognized by kernel.
Marc, correct me if my description is not consistent with your test.
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Title:
[La
Hi Stefan,
We will do the tests and post the log, thanks.
Marc, could you help to do the tests per Stefan's comment(#12) and post
the debug log? You know I have no way to plug the HDD. remotely?
thanks,
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On Sun, Dec 4, 2011 at 7:11 PM, Stefan Richter
wrote:
> For the fail
Hi,
I didn't observe the issue on my T410 with 3.0.0-13-generic[1], could
you test this kernel to see if there is still the problem?
Also could you take one picture about the panic log on the console?
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[1], same issue reported on Thinkpad T510, see 891368
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Chris,
This is different(different chipset, different issue) with that one in SNB,
which is addressed
by the SRU.
Marc, could you change to AHCI mode in BIOS to see if the problem can be
fixed?
thanks,
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Could you test the upstream kernel to see if the issue has been fixed?
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2-rc2-oneiric/
If the issue is still on upstream kernel, please post the dmesg info from
upstream
kernel, so that upstream developers can help it.
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Also maybe the DVD drive is broken in the machine, so could you change another
drive on
the Optiplex 360 to see if there is any progress.
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Hi,
On Wed, Nov 30, 2011 at 4:18 AM, Marc Legris <879...@bugs.launchpad.net> wrote:
> Hi Ming, there does not appear to be an option in the BIOS to switch to
> AHCI mode.
OK.
In fact, there are not any error messages about CD-ROM or scsi from the
'dmesg', and we can observe that the CD-ROM driv
D drive on another machine to see if
it is a good one? Maybe the optical head of the drive was
broken physically.
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Title:
[Optiple
Public bug reported:
1, no any output from LCD, and LCD is just black
2, the indication led of LED is green, which means that there is display
signal to LCD
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-1205.11-omap4 3.0.4
Uname:
** Package changed: ubuntu => linux-meta-ti-omap4 (Ubuntu)
** Package changed: linux-meta-ti-omap4 (Ubuntu) => linux-ti-omap4
(Ubuntu)
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Title:
On
onnected
[2], usbmon guide
- Documentation/usb/usbmon.txt inside linux kernel source code
or
- http://www.mjmwired.net/kernel/Documentation/usb/usbmon.txt
thanks,
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/873656/
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Title:
usb-port don't works (don't see the 3g modem and usbdisk) Lenovo
x100e
To manage notifications
Public bug reported:
In a default install of Ubuntu 11.10 with Unity, applications that
follow the XDG icon theme spec to find icons for mime types do not work.
For instance, one such program is Chromium, which searches
/usr/share/icons/[current_theme], /usr/share/icons/gnome, and
/usr/share/icon
Marc, please test Ubuntu-2.6.38-12 to see if you can reproduce the problem.
The patch[1] just entered Ubuntu-2.6.38-12-51 two days ago.
[1], UBUNTU: SAUCE: fireware: add NO_MSI quirks for o2micro controller
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Marc, could you test the previous uploaded image below to see if it can fix the
bug?
http://kernel.ubuntu.com/~ming/bugs/801719/linux-2.6.38-11.i386.tar.gz
If still not, please post the 'dmesg' result from the kernel above link.
thanks,
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You received this bug notification because you are
97214541&w=2
[2], http://marc.info/?t=13166567031&r=1&w=2
thanks,
--
Ming Lei
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/782389
Title:
DVD drive doesn't work on MacBookPro
*** This bug is a duplicate of bug 801719 ***
https://bugs.launchpad.net/bugs/801719
** This bug has been marked a duplicate of bug 801719
[Dell E5420/E5420m/E5520/E5520M/E6520/M6600/M4600] SD card and Firewire
devices are not detected when attached to o2micro controller
--
You received
eup from 'user button'(gpio 121), but
it doesn't work now. Also, ehci/ohci ports should be as remote wakeup
source too, and TI guys are working on it.
So we don't need to disable system sleep now.
thanks,
--
Ming Lei
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You received this bug notification because you are a mem
** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
** Changed in: linux (Ubuntu Natty)
Status: Fix Committed => Fix Released
** Changed in: linux (Ubuntu Oneiric)
Status: Fix Committed => Fix Released
** Tags removed: verification-needed-natty
** Tags added:
P is set. Considered that you
said it may be triggered by your PlayTV usb device, please apply the
attchment debug patch to see if something insane can be dumped out.
If you can't build kernel, please let me know and I will upload a
built kernel image for you.
thanks,
--
Ming Lei
** Patch
Please try the patch below to see if it can help the issue.
http://marc.info/?l=linux-pm&m=132123391726374&w=2
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You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to kde-workspace in Ubuntu.
https://bugs.launchpad.net/bugs/859075
Title:
Oneiric
Rtl8169 has enabled runtime pm, so the bug is very probably caused
by runtime pm operation after shutdown, see some discussions below link:
http://marc.info/?l=linux-pm&m=132123391726374&w=2
If possible, please apply the patch to see if it can fix your issue.
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You received this bug notific
Please try the patch below to see if it can help the issue.
http://marc.info/?l=linux-pm&m=132123391726374&w=2
thanks,
--
Ming Lei
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/76220
>From 'lsusb', there is not usb 3g modem device at all, could you
make sure there is one usb 3g modem device in your laptop?
Also there is no usb disk device from 'lsusb', and there is only
one usb card reader. And of course, you need to plug one sd/mmc
card into the slot, then you may access the
Hi guys,
The machine is shipped with the sata ide controller: 8086:1c00, which
is found not workable in
many machines with 32bit PIO, see bugs below:
https://bugs.launchpad.net/bugs/737388
https://bugs.launchpad.net/bugs/794642
https://bugs.launchpad.net/bugs/782389
The patc
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Committed
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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/862790
Title:
[Latitude XT3] System unable to suspend
To manage notifications a
Could you try to run the command below, then see if the bug can be
reproduced?
$sudo rmmod xhci-hcd
thanks,
--
Ming Lei
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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/875815
Title
On Fri, Oct 21, 2011 at 4:27 AM, derp herp <782...@bugs.launchpad.net> wrote:
> Not sure how to test this as the issue was with the Ubuntu Installer CD.
> Is there a Ubuntu Installed CD image available with this fix included?
You can just test CD access on the new update. If you can access CD corr
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