After some days of using Utopic on my L440, I'm able to use wifi even for
longer duration (~3 hours). The connection was okay-ish mostly (ping showed
~25% packet loss). Later, it failed to do a 'git push', that's when I switched
to wired connection. :)
But I reckon that it has come a long way..
Luren: when my system freezes, I cannot move the mouse or do anything
else. It happens whenever I leave my wifi on for a few minutes.
Otherwise, it never happens to me.
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I've noticed comments about system freezes. Do those system freezes have
the following characteristics: 1. Mouse can move however it cannot click
anything. 2. ctrl-alt-f1/f2 does not do anything. 3.REISUB does not
work. 4. Random frequency. 5. No correlation with CPU load?
I've been running into
Yesterday I too upgraded to Utopic (so now at 3.16.0-24) from Ubuntu Gnome
14.04. And for the first time, my L440 could scan and connect to wifi networks.
Though connection was successful in the first try, but there was no data
transfer, I could not ping any IP address. 'ifconfig' did show the
I upgraded to Utopic (from Ubuntu Gnome 14.04) on my Thinkpad T440 and
wifi worked without any problems. However, after about a day and a half
the system started freezing after using wifi for a few minutes (if I
turn the wifi off, then it doesn't freeze), which is the same thing that
had happened
** Also affects: linux (Ubuntu Trusty)
Importance: Undecided
Status: New
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
** Changed in: linux (Ubuntu Trusty)
Status: New = In Progress
** Changed in: linux (Ubuntu Trusty)
Assignee: (unassigned) = Adam Lee (adam8157)
** Changed in: linux (Ubuntu Trusty)
Importance: Undecided = Medium
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** No longer affects: hwe-next/trusty
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
To manage notifications about this bug go
** Also affects: linux (Ubuntu Utopic)
Importance: Undecided
Status: New
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
** Changed in: linux (Ubuntu Utopic)
Status: New = Fix Released
** Changed in: linux (Ubuntu Utopic)
Importance: Undecided = Medium
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pull-request for trusty was NAKed because next minor Trusty release will
use Utopic LTS kernel, which had already fixed this issue.
please wait it or upgrade your whole distro to Utopic.
** Changed in: linux (Ubuntu Trusty)
Status: In Progress = Won't Fix
** Changed in: linux (Ubuntu)
God, I wish I could return my T440s... I do not want to deal with this
shit!
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
To
** Description changed:
Open this bug to trace device driver RTL8192EE.
We have seen this wireless card on some laptops, id is [10ec:818b],
driver is RTL8192EE.
- Status: waiting for this driver being moved out of staging directory.
+ Status:
+
+ After it was moved out of staging
** Description changed:
Open this bug to trace device driver RTL8192EE.
We have seen this wireless card on some laptops, id is [10ec:818b],
driver is RTL8192EE.
Status:
- After it was moved out of staging directory, I think its quality meets
- SRU's requirements now, in progress
Status:
Although this driver was moved out of staging dir, but because of the
dependency hell, still decide to backport the staging driver.(the
developed staging driver is already in Utopic, this bug is only on
Trusty now.)
About the issues of this driver:
Please test the latest mainline kernel
pull-request has been sent to kernel-team@
Utopic had already fixed this bug, you guys could upgrade distro too.
** Changed in: hwe-next
Status: Confirmed = In Progress
** Changed in: hwe-next/trusty
Status: Confirmed = In Progress
** Changed in: linux (Ubuntu)
Status:
I have this problem in Thinkpad x240
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
To manage notifications about this bug go
I was able to get this to work on my new t440s.
I'm using kernel version 3.16.0-24-generic
I cloned from github and did the sudo make install from #184.
Lastly, I did:
sudo modprobe r8192ee
and that seemed to do the trick because it wasnt working before that
despite a restart.
I tried:
sudo
Well, that was short lived. I restarted my computer and now it has the
same wifi issues as before.. connects for a second and then disconnects.
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I've been trying 3.18rc1 without luck... so you can try newer one and
let us know if it works :)
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Title:
No wireless support for Realtek
Hello, what is the status of this?
I am using the 3.16.2 kernel and the firmware from #97 - but I am still
experiencing those disconnections and kernel oops. Is the 3.18rc2 including the
latest version supposed to be more stable?
Will there be significant changes before the final release of
@Bernado, my card has no problem detecting networks, but it has a 10 %
chance of actually connecting to one. I wish I could return my laptop.
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I've tried the latest version of the driver from Github and I also
experienced a system freeze. On the other hand, it is difficult to
connect to any network, and the traffic is really slow. @Larry: which
kernel version do you recommend for testing the drivers? I'm currently
using
I often have to restart a couple of times before I can connect to wi-fi. When
I finally do, there can be anywhere from 10% - 40% packet loss.
I tried installing rtl-wifi-new and I wasn't able to connect at all (although
maybe I didn't restart enough times) so I tried uninstalling it and the
I am not sure this is relevant, but there are no issues with the card
according to this thread (
http://ubuntuforums.org/showthread.php?t=2198221page=2 ). My fiancée
and I spent the afternoon configuring our T440, and the wireless card
this bug refers to was detecting wireless networks in the
Why do you have ndiswrapper loaded?
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
To manage notifications about this bug go to:
Good catch. I didn't notice that. I had tried via ndiswrapper before
this driver came along. I have removed ndiswrapper completely now. Let
me try again.
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here is first photo
** Attachment added: foto1.JPG
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1239578/+attachment/4242001/+files/foto1.JPG
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Today I managed to build (my very first) latest kernel, 3.18.rc1.
Unfortunatelly, it didn't work. But I have got some logs that will be hopefully
usefull... Also, if it could help i also can build another kernel if you
(Larry/Xprogrammer/anybody else) will tell me which features have to be
and second photo
** Attachment added: photo from freeze messages
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1239578/+attachment/4242002/+files/foto4.JPG
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Output of /proc/interrupts and mpstat.
** Attachment added: rtl_logs.txt
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1239578/+attachment/4242050/+files/rtl_logs.txt
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@Larry,
I retried after removing ndiswrapper. Same result. System frozen after
some time.
Oct 22 14:45:38 skannan-dv2k kernel: [21876.694487] Watchdog[3774]: segfault at
0 ip 7f50cd9651ab sp 7f50bd5
647d0 error 6 in chrome[7f50c9bcb000+4ffd000]
Oct 22 14:46:08 skannan-dv2k kernel:
Output /proc/interrupts.
===
CPU0 CPU1 CPU2 CPU3
0: 34 0 0 0 IO-APIC-edge timer
1:657 4850412509 IO-APIC-edge i8042
8: 1
I assigned IRQ 48 (RTL_PCI) to CPU 3 via echo 8
/proc/irq/48/smp_affinity
Oct 21 21:00:04 skannan-dv2k kernel: [ 2630.800829] NMI watchdog: BUG: soft
lockup - CPU#3 stuck for 23s! [swapper/3:0]
Oct 21 21:00:04 skannan-dv2k kernel: [ 2630.800833] Modules linked in: ctr ccm
arc4 rtl8192ee(OE)
unfortunatelly, I have i7 4700mq which does not support VT-d :(
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
To manage
Ok, IRQ interrupts also happening on 3.11.10-301.fc20.x86_64 with new versions
of driver downloaded from https://github.com/lwfinger/rtlwifi_new (master
troy, didnt try kernel version explycitly, but it should be probably at 3.18
kernel which also had the problem). Version downloaded
@Stano,
I tried in my system(which doesnt have IOMMU VT-D), but wifi itself
wont be up in virtualbox. Its not much useful.
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Title:
No wireless
I've been running fedora 20 with kernel 3.18.0-0.rc0.git4.1 without problem
when today... 4-5 crashes :( (I only installed wget, then suspended and after
that I had several freezes). Now I'm running 3.11.10-301.fc20.x86_64 with
driver from git (not sure which version, I tried several versions
@ stano,
I meant, boot this version of kernel in Virtualbox, and using IOMMU ,
PCI Passthrough see if things goes normal and freeze after a while.
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@ stano,
I was trying to debug in my system but complete freeze takes away entire
system to be only power off/on.
If you have system which supports IOMMU, you can boot this version of
kernel and PCI passthrough to see where is the freeze. that will be
really useful to find out.
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Your log makes it look as if there is an error in the pairing of
rcu_read_lock()/rcu_read_unlock() calls, but everything looks OK. It
won't help your problem, but I just pushed a change that gets rid of an
error log splat on my system.
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Oct 13 22:56:27 skannan-dv2k kernel: [ 759.384776] [ cut here
]
Oct 13 22:56:27 skannan-dv2k kernel: [ 759.384809] WARNING: CPU: 0 PID: 3994
at /home/apw/COD/linux/drivers/gpu/drm/i915/intel_display.c:3361
intel_crtc_wait_for_pending_flips+0x11a/0x150 [i915]()
Oct 13
INFO: task kworker/u16:1:3631 blocked for more than 120 seconds.
Tainted: G OE 3.17.0-031700-generic #201410060605
echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message.
kworker/u16:1 D 0001 0 3631 2 0x
Workqueue: phy0
Oct 13 22:49:44 skannan-dv2k kernel: [ 355.976753] wlan2: RX AssocResp from
58:6d:8f:64:22:ff (capab=0x411 status=0 aid=2)
Oct 13 22:49:44 skannan-dv2k kernel: [ 356.016768] wlan2: associated
Oct 13 22:49:44 skannan-dv2k kernel: [ 356.016782] IPv6:
ADDRCONF(NETDEV_CHANGE): wlan2: link becomes
For some reason, RTL8192EE loses its connection to AP even though things
looks normal from network point of it. After consecutive attempt to
reconnect causing, system freeze. Can it be ?.
IPv6: ADDRCONF(NETDEV_CHANGE): wlan2: link becomes ready
show_signal_msg: 159 callbacks suppressed
I tried with kernel 3.17.0-031700-generic Ubuntu 14.04.1
Things seems to be OK so far.
user1@user-laptop:~$ uname -r
3.17.0-031700-generic
user1@user-laptop:~$ uptime
10:35:15 up 1:51, 3 users, load average: 0.52, 0.41, 0.34
user1@user-laptop:~$ ifconfig wlan2
wlan2 Link encap:Ethernet
Frozen again..
Portion of kern.log attached.
** Attachment added: kern.log
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1239578/+attachment/4235124/+files/freeze.txt
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System: Lenovo X240 Thinkpad
OS: Ubuntu 14.04.1 64 bit LTS
Kernel: 3.13.0-37-generic #64-Ubuntu SMP (after update)
When I installed Ubuntu 14.04.1, the network was not configured. So I
was left with a system without wifi and ethernet. I downloaded the
rtlwifi_new driver from the git repository
Larry,
I'm trying to see why link state is not coming up in virtualbox loaded
kernel. I don't see call to netif_carrier_on upon sudo modprobe
rtl8192ee. Can you help how is this flow works? For RTL8192EE driver,
how is netif_carrier_on being called and stack trace of that would help
me to see why
Larry,
Is there way to test this driver under virtualbox or EXSI based VM? I
could give it a try in that case.
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Title:
No wireless support for
wlan0 Link encap:Ethernet HWaddr 40:f0:2f:7b:66:b7
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0
I could bringup Ubuntu 14.04 under virtualbox and add PCIe (realtek) to
VM using pciattach. Its visiable under Guest OS and after adding
rtl8192ee driver, its able to find PCIe and brings up wlan0 interface.
Its says, Wlan0 link is not ready.
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01:05.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192EE PCIe
Wireless Network Adapter
Subsystem: Realtek Semiconductor Co., Ltd. Device 001b
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+
@Varun,
Its very much related to this driver. Unfortunately I'm not able to get
Call Trace from kernel as its completely frozen. Looks like, gets
getting into deadlock. I've build kernel with lock debugs
-rw--- 1 root root 0 Oct 8 23:06 lock_stat
-r--r--r-- 1 root root 0 Oct 8 23:06 locks
Just FYI
For testing, I have upgraded my Lenovo T440s under Ubuntu 14.10 beta 2
one week ago. The native kernel is 3.16 (today 3.16.0-21).
Since the upgrade, WiFi networks are seen. But it's fully impossible to
connect to anyone, even if it's a fully open network, ie without
authentication
I've been having lot of freezes with fedora 20/21 kernels 3.15, 3.16,
3.17 (maybe sooner). In my opinion it is related to bug I (and others)
have reported https://bugzilla.redhat.com/show_bug.cgi?id=1149632 .
Yesterday I reinstalled fedora back to 3.11.10-301.fc20.x86_64 and it
looks like when I
If you are using the driver from staging, then you need to know that it
has been deleted from kernel 3.18 and replaced by the code that is found
at http://github.com/lwfinger/rtlwifi_new.git.
When the system has a stuck CPU, and some other info was written to the
terminal, debugging is impossible
Oct 8 23:39:46 laptop-t440s kernel: [ 2990.480801]
rtl8192ee:rtl92ee_set_hw_reg():0-0 switch case not process 1c
Oct 8 23:39:47 laptop-t440s kernel: [ 2990.787430]
rtl8192ee:rtl92ee_set_hw_reg():0-0 switch case not process 1d
Oct 8 23:39:47 laptop-t440s kernel: [ 2990.787785]
There is nothing wrong in the log that you posted. Those switch case not
processed warnings are not a problem.
I think you are using the Git repo. Which branch are you using? What
does 'git log' say is the latest commit.
The information I need will appear on the console log. It can possible
be
[laptop-t440s]09:27:25-user~/Downloads/rtlwifi_new$ git status .
On branch master
Your branch is up-to-date with 'origin/master'.
Untracked files:
(use git add file... to include in what will be committed)
backup_drivers.tar
nothing added to commit but untracked files present (use git
commit 5068371ab982090576c863204b96adc1d03ed462
Author: Larry Finger larry.fin...@lwfinger.net
Date: Thu Oct 2 17:11:29 2014 -0500
rtlwifi_new: Modify Makefile to save drivers before installing new ones
Whe uninstalling the drivers, the saved versions are restored. Firmware is
I've turned off bluetooth and loaded kernel build out of 3.16 release as
per link (http://www.tecmint.com/install-kernel-3-16-in-debian/) with
some more lock debugging.
System is up for 10 hours and i'm using it. So far, It has got 200MB of traffic
(in + out).
[laptop-t440s]10:24:36-user~$
Unfortunately, right after previous post, my system went to hang. I
can't even go to any terminal. Ctrl + Alt + F1 to F12, nothing worked.
Its completely unresponsive. Only option I had to power off manually and
poweron in hard way by pressing power button.
Is there place where I can look for
Unfortunately, when you need to power off the system in this way,
information being written to the logs is lost.
Whenever there is a particular sequence that causes a crash, I usually
cause a terminal to sleep for 5 secs, and then have it do the sequence -
all in a single line separated by a
Step 1) I upgraded to 14.04.1 from 13.10 using apt-get upgrade, update-
manager -d.
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 14.04.1 LTS
Release:14.04
Codename: trusty
Step 2) Pulled driver code from GIT and built. Loaded via modprobe and added
Xprogrammer,
Could you give us the pastebin link to you full wireless_script report?
: http://ubuntuforums.org/showpost.php?p=13024222
In case it is not directly related to the bug, an Ubuntu Forums thread
(or IRC channel #ubuntu) may be a better place for further
troubleshooting, if possible at
With 3.13.9 kernel, system freezes completely after 30minutes of uptime
with 8192ee module loaded.
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Title:
No wireless support for Realtek
Just to report back larry, I'm still getting lockups which require a
manual power cycle on my t440p with kernel 3.13.0-24-generic and built
from your github.
The crashes are certainly happening less but still happening. Sometimes
more intensive network usage seems to cause one, like using skype
The dmesg says that authentication is failing. Are you sure the wifi
secret is correct?
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Title:
No wireless support for Realtek RTL8192EE
Hi Larry/Varunendra,
As the other member was mentioning, I see same behavior in my Laptop too.
If I reboot the system once, first time I can see that it connects to the
Wifi network - but browsing internet fails. It briefly stays in connected
state for few mins and then disconnects. I see same
There will be a new RTL8192EE driver in kernel 3.18. If you want to try
it earlier, you need to use the code mentioned in comment #184. If you
are using kernel 3.13.0-36 from Ubuntu, you will have a build problem.
See Comment #204 to see why I cannot fix that problem.
If you are using this code
To report on the good news as well.
I tested the new RTL8192EE driver linked in comment #184 on the 20th Sept
(after commit 5edf3e917dd11dbace503f25dde96a273ce4ca59) and had the same
connection problems reported in comments #212 (and others before).
However I tested again yesterday (after
Hi Larry,
I am using 3.17 latest Kernel from rupotic. I am ready to use 3.18 kernel
but don't know really how to build it from source code. I will give it a
try sometime and let you know the status.
But I am not sure why the authentication times out after first successful
connect to Wifi. Anyway
Since 3.17 is not out yet, you will not find 3.18 anywhere - in about
one month, 3.18-rc1 will be available at vger.kernel.org.
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Title:
No
Hi Larry,
Thanks for the reply and all your hard work. Sorry to hear you have to deal
with frustrating corner cases like this.
I upgraded to the latest non-RC kernel (3.16.3-031603-generic), and am no
longer getting compilation warnings or kernel panic.
I am, however experiencing exactly the
Hello Graham,
I've been following this bug for quite sometime, just out of curiosity.
However, many of the comment posts here look like common issues that may
or may not be related to this particular bug. Yours sounds similar. Oh,
but not really same as #205 (Venkatesha). His was not connecting
Hi Varun,
Thank you for the pointer! Because my problem is now potentially not
related to this bug I'll move my request to the networking forum
instead. (I tried to set ips=0 fwlps=0 but adding a conf file to
modprobe.d doesn't seem to change anything, and modprobe rtl8192ee
gives an Exec format
It's in the upper right of the page as dmesg.log.
Yup, found that now, a place I never noticed before.
Also, your problem may indeed be related to this bug, I'm just not sure
and I know there are some other reasons too leading to same or similar
behaviour. So potentially is the keyword in your
The RTL8192 does not work in the Uberstudent 4.0 distro, either.
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
To manage
Hello, I attempted to install the driver on my Lenovo L540 but am
consistently getting Kernel Panic when I reboot after installation. I'm
using 3.13.0-36-generic and simply cloned the repository, and did make;
sudo make install.
I've attached the make log (with some warnings) and dmesg, but it
I am beginning to understand this problem, but I do not have a general
fix.
In kernel 3.14, the authors of mac80211 changed the API (applications
interface) for routine ieee80211_is_robust_mgmt_frame() to be able to
intercept a certain kind of error. For those drivers that could not fit
the new
Hi Larry,
Thanks for a detailed post with your findings. We understand your
frustration here. But I have a strange issue in my L440 which has R8192EE
Wifi Adapter and 3.17.0-031700rc6_3.17.0-031700rc6.201409211935 kernel
which is the latest available kernel. I installed this kernel few days back
So far seem more stable Larry. I still get periods where the network
connection stops for up to a minute, not sure if this is related, but no
crashes today. Fingers crossed, but things seem to be moving in the
right direction.
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Good to hear that the system is more stable. Locking problems can be
difficult to find as they frequently are affected by subtle differences
in the speed and number of CPUs, etc. The other locking problem showed
up on my system as an attempt to free DMA memory that had never been
assigned. The
Troy, the Realtek engineer, found a locking problem today that may be
the cause. Pull a new copy from GitHub.
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Title:
No wireless support for
I updated my kernel with the latest from GitHub and it work all of
today and then locked up again as before unfortunately.
Is there anyway to get some debug back to you Larry? I don't see
anything suspicious in the logs.
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If a freeze never produces any logged entries, then it will be difficult
to find.
Was the system more stable after the previous fix? If that helped, I
just pushed a new commit that might help some more.
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I'm not sure its more stable yet Larry, but seems to be I think, though I have
had rare days with only 1 lockup before.
The only time I had a complete kernel panic and errors printed to screen
as shown by my incomplete stack trace from #191 was when I had another
process using all of memory and
I had not applied that latest fix to the master branch as I thought you
were on kernel_version. That latter one is only for recent kernels - I
think 3.14 or newer is required.
In any case, I pushed that latest change to the master branch.
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I exactly face the same problem as @Clive Cox in #181. Following is what
I am using
Machine: Lenovo L440
OS: Ubuntu 14.04 LTS
OS type: 64bit
Kernel Version: 3.13.0-35-generic
Drivers: rtlwifi_linux_mac80211_0019.0320.2014V62
Most of the times it works and connects properly but periodically it
+1, same issues. Experiencing freezes as well with the latest firmware.
Must REISUB.
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Title:
No wireless support for Realtek RTL8192EE
I upgraded to 3.16 using the method suggested in 173 and it seems to
work.
However, I still can't connect to my school's wifi network (WPA2; PEAP
authentication (version 0); MSCHAPv2 inner authentication).
Here's the output of dmesg | tail -20
[ 69.524510] wlan1: authenticate with
I just had a kernel panic when running my laptop under high memory load
it was:
BUG: unable to handle kernel NULL pointer dereference
at
rtl92ee_rx_query_desc
Later on there was a stack trace with
rtl_pci_init_one_rxdesc
rtl_pci_rx_interrupt
raw_spin_unlock
ieee80211_rx_handlers
put_page
The traceback is a lot more useful when you provide the numbers that
follow the names of the routines. Those are of the form
rtl_pci_init_one_rxdesc+0x/0x. That way I can identify exactly
the statement that failed.
I have nearly reached the point where I will be testing rtl8192ee hard.
I'm on a Lenovo T440p; Ubuntu 14.04 AMD64; kernel 3.13.0-35-generic
(I had to downgrade my bios to 1.14 as suggested here:
http://askubuntu.com/a/502065/63688 )
I tried installing the drivers from the git repository in 182, but as
soon as I boot, it crashes. (for anyone else who runs into this
@Sylvain: Are you using the driver from #155? If not, please do.
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Title:
No wireless support for Realtek RTL8192EE [10ec:818b]
To manage
I'm using the 3.16.0-031600rc6-generic kernel with the latest drivers
fetched from github. I can connect to my router, however the speed is
quite slow. It could take a couple of minutes till I get the results of
a google search.
I tried to look at the debug information (using the guidelines in 0)
I see a lot of scans for other networks while connected. Is this normal?
(BSSID mismatch)
I really cannot draw any conclusions about this log. Does anybody can
pinpoint a specific problem?
** Attachment added: Debug information of wpa supplicant and NetworkManager
I am experiencing some general freezes and crashes with the kernel
3.16-2 and the firmware for RTL8192EE. Any idea on how to troubleshoot
this.
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Unfortunately I am still getting connection locks where wifi stops working and
I can't reconnect and also I can't shut down. Only way is to press external
power button. Also, I still get the situation where keyboard becomes
unresponsive and keeps emitting a single key, and same thing I can only
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