On my Dell Inspiron 7537 the wifi is working very well on 3.16 (trusty),
however I experience frequent disconnections on 3.19 kernel (vivid).
After I get disconnected, no APs are visible by Unity wifi applet.
However, using wavemon to connect to a network "fixes" everything for
about 1 hour. Switch
This bug was fixed in the package linux - 3.13.0-36.63
---
linux (3.13.0-36.63) trusty; urgency=low
[ Joseph Salisbury ]
* Release Tracking Bug
- LP: #1365052
[ Feng Kan ]
* SAUCE: (no-up) irqchip:gic: change access of gicc_ctrl register to read
modify write.
-
Just tested on my office wifi and got 120Mbit/s, so there is no speed
problem with this new kernel. Also no reason=4 disconnections for a hour
test.
Thank you very much to Seth and others for the good work.
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** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
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https://bugs.launchpad.net/bugs/1349572
Title:
Wireless network disconnections on Dell
Still some reason=4 disconnections, but seems the same as Seth's kernel.
I have tested it not on my own computer, but on onother Dell XPS 9333 (same
version) but on my home wifi.
I don't how to change tag. I must do it myself?
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This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
trusty' to 'verification-done-trusty'.
If verification is not done by 5 working days from t
** Branch linked: lp:ubuntu/precise-proposed/linux-lts-trusty
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Title:
Wireless network disconnections on Dell XPS 13
Status in “lin
** Branch linked: lp:ubuntu/trusty-proposed/linux-keystone
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Title:
Wireless network disconnections on Dell XPS 13
Status in “linux”
Seth, thanks for your efforts, I'm affected as well.
I just tried kernel 3.16 (your post #40) and got no disconnects (though
not testing for a long time now) but the connection was very slow, some
Kb/s (maybe related to #1354975). Unfortunately I can't use your build
as I'm on i386. I'll keep obs
Seth, thanks for your efforts, I'm affected as well.
I just tried kernel 3.16 (your post #40) and got no disconnects (though
not testing for a long time now) but the connection was very slow, some
Kb/s (maybe related to #1354975). Unfortunately I can't use your build
as I'm on i386. I'll keep obs
On Sat, Aug 16, 2014 at 11:40:28AM -, Marcel Miguel wrote:
> Thanks Seth. This is working better than stock.
> But just got 4 consecutives reason=4 disconnections, the system recovered
> alone in 3 minutes. Do I create a new bug?
Yeah, as I said I don't think we've found a complete fix at thi
Thanks Seth. This is working better than stock.
But just got 4 consecutives reason=4 disconnections, the system recovered alone
in 3 minutes. Do I create a new bug?
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https://lists.ubuntu.com/archives/kernel-team/2014-August/047672.html
** Also affects: linux (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Utopic)
Importance: Medium
Assignee: Seth Forshee (sforshee)
Status: In Progress
** Changed in: l
** Description changed:
+ SRU Justification
+
+ Impact: Many users with Intel 7260 wireless are seeing relatively
+ frequent disconnections as a result of the firmware reporting loss of
+ beacons from the access point.
+
+ Fix: Two upstream backports, one which waits for several lost beacon
+ re
Thanks, Marcel. That's good enough for us to move forward with the
patches, so I'll get them applied in trusty. I'm not convinced that the
problems are 100% fixed, so if you're seeing problems after we get these
patches in place please file new bugs for these issues.
** Changed in: linux (Ubuntu)
At home, I did not have any reason=4 disconnections, for a 10hours time,
so this kernel is better than stock and (maybe) better than 3.16 with -9
firmware.
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I'm testing your new kernel., using firmware 22.24.8.0.
I tested for about 2 hours yesterday, and today for an hour.
No disconnections for reason 4.
Now at work, I wanted to test speeds. I got 57mb/s close to one of the
AP. Then I changed to 3.16 to test on it. But after that I can't connect
to
I found another upstream fix related to the recovery from missed beacons
for drivers like iwlwifi, so I think it's worth giving that a try. I
backported it to 3.13 and posted the build here:
http://people.canonical.com/~sforshee/lp1349572/linux-3.13.0-32.57+lp1349572v20140847/
Please try it o
My tests were not very exhaustive. Especially beacuse mainly my wifi was
working on the computer.
If you wish I can test other kernels/drivers, better with 3.13.
The main problem with 3.16 is that VisrtualBox is not working for me,
and I need it.
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The easiest way I know of for you to test the 3.16 driver with 3.13 is
by using the drivers from the backports project. Unfortunately there is
no prebuilt version for Ubuntu, so you'll have to manually build and
install the drivers. If you want to give this a try see
https://backports.wiki.kernel.o
I tested 3.16 rc7 with firmware 22.24.8.0, and seems stable, no more reason=4
disconnections for about 5 hours on the computer. Difficult to say but more
stable than with .9 firmware...
Speed seems ok (not tested correctly yet, I only have this computer at home).
Blacklisting does not work on 3
Can you give me syslog from 3.16 so I can check whether the
disconnections appear to have the same cause?
The next thing I'd like to know is whether 3.16 with the -8 firmware, to
see whether it's the kernel or the firmware that improves your results.
If you're able too, could you rename /lib/firmw
After some hours, maybe 2 disconnections. Less than with 3.13.0.32.57 (with
backported 3.14 parts)
Some tests speedtest.net get better speeds than previous kernel.
So it's difficult to say with a short test, but it is better than stock, and
better than 3.13 (backported).
I cannot work with 3.16,
This afternoon there has been lots of disconnections, around 40, but
connection was recovered, so its is better, but not very usable.
I'll inform when I am able to test 3.16, expect some tests on thursday.
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It sounds like the 3.13 test build is better but still not perfect. Is
this correct?
Once you feel confident in your results, I'd appreciate it if you could
try 3.16 for a longer period and see how it compares to the 3.13 test
build. If it's better then there may be additional improvements we can
I had some disconnections 15 minuts ago:
wlan0: CTRL-EVENT-DISCONNECTED bssid=xx reason=4 locally_generated=1
I needed a restart to arrange it. After this everything seems to work
fine.
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On Mon, Aug 04, 2014 at 08:59:52PM -, Marcel Miguel wrote:
> Hi Seth,
> I had no disconnections, now for a 3h period (a fabolous improvement!)
Good!
> Speed seems to decrease, at least with a speedtest:
> http://www.speedtest.net/my-result/3668258447
>
> I know, it is not a valid test, bu
Hi Seth,
I had no disconnections, now for a 3h period (a fabolous improvement!)
Speed seems to decrease, at least with a speedtest:
http://www.speedtest.net/my-result/3668258447
I know, it is not a valid test, but maybe is a reference. I tested it
with various servers and seems a limit at abou
Marcel: That's fine. If you're getting connections with 3.16 we might
want to check later and see if those are the same or different than what
you're getting in 3.13, but for now you can continue testing the kernel
I built to see if it improves things for you at all.
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Seth, I couldn't test them very much.
Yesterday I updated the system to your 3.13.0.32, so far so good. But it
was only a 30 min test. Today I will test it more deeper.
As for 3.16 i was getting some disconenctions (but much better than with stock
3.13.0.32), but also only a 30 min test.
Also I
Note that you do need to install the linux-image-extra package in
addition to the linux-image package. The headers packages are optional,
but if your touchpad driver does turn out to be DKMS then you may need
them for it to work.
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Marcel: Another kernel for you to test. It is 3.13.0-32.57 with a single
update to give a little more leeway for beacon loss. Let me know if this
helps at all.
http://people.canonical.com/~sforshee/lp1349572/linux-3.13.0-32.57+lp1349572/
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Thanks, please keep me posted. I wouldn't suggest using that kernel
long-term since it's unsupported, but if it continues working well maybe
we can continue testing more kernels to try and determine what changed
to fix the problem.
As for the touchpad, my first guess would be that you have a DKMS
Seems that with this kernel I'm not losing connections, haven't tested
for a long time, but seems to connect quikly after a reboot.
Tomtorrow afternoon I'll try more tests.
Doing an speedtest.net with new kernel gives really bad speeds.
http://www.speedtest.net/my-result/3660405916
Normally in
I'm still in the process of looking through the data you sent me.
Everything I've seen so far points to loss of beacons from the AP, but
if wireless on your phone continues to work then I have to think the AP
is sending beacons. The second dump is interesting because it shows
associations followed
After some disconnections, the system cannot recover wireless
connection, arounf 1-2hours . Rebooting the system does not help.
I must change to 3.13.0.30 and -7 firmware to connect with wifi (and
some problems, but al least can connect to write this).
Connection on my Nexus 5 is ok all the time.
Thanks, Marcel. The problem does look very similar to that in bug
#1293569, but apparently that fix isn't working for you.
Let's try to get some more data. Please download
http://people.canonical.com/~sforshee/wifi-debug, then open a terminal
and make it file executable ("chmod u+x wifi-debug" in
I hope I attached logs with "apport-collect 1349572".
I cannot call this when there is a wireless shutdown, i must recover
coms by shutting them down and restarting them, and after call it.
Also when calling it, shows "dpkg.query: no se ha encontrado ningún
paquete que corresponda con linux". I s
apport information
** Tags added: apport-collected
** Description changed:
With kernel 3.13.0.30 and 22.1.7.0, there are lots of wireless disconnections.
Tested also with kernel 3.13.0.32 and 22.24.8.0 , also lots of wireles
disconnections.
The AP is an ASL-26555 from Movistar(Spain).
3.13.0-32-generic should be the same. Run 'dpkg -l linux-
image-3.13.0-32-generic' and check the version number to confirm. Or
else once you've booted that kernel you can run 'uname -a' and you'll
see something like:
Linux ubuntu-hedt 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08
UTC 2014 x
You can also use the latest backport:
http://drvbp1.linux-foundation.org/~mcgrof/rel-html/backports/
and with latest firmware:
https://git.kernel.org/cgit/linux/kernel/git/egrumbach/linux-
firmware.git/plain/iwlwifi-7260-9.ucode?id=e2844339cb779c00f856c554958e16beca99b462
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Hi Seth.
It Is valid to test with 3.13.0-32-generic ? Is the same as 3.13.0-32.57?
If not How can I get to upgrade to that version?
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Marcel: Can you go ahead and update so that everything is current, then
boot with the current kernel (3.13.0-32.57) and the -8 firmware for
iwlwifi (22.24.8.0). Then wait until you experience problems and run
'apport-collect 1349572' to attach logs to this bug report. It's better
to start from the
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