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  • Strange problem of wifi keeps droping every minute on Ubuntu 12.04

    - by user965884
    I am running ubuntu 12.04 on my samsung laptop but the wifi connection keeps dropping every minute. I have another dell laptop which also has ubuntu 12.04 but wifi works fine on that. And if I use my samsung laptop at office as its my office laptop wifi works fine. So, I don't understand what the problem is. I have googled it and found solution like set ignoring IPv6 setting but that still does not make any difference. So I don't understand where the problem is if its with my network provider or its with my laptop. I can't blame my network provider as wifi works fine on my other devices including Ipad, mobiles and dell laptop. Even I can't say clearly that its problem with my laptop as wifi works fine in my office. Previously I had ubuntu 13.04 on my samsung laptop and I was having the same issue so I uninstall it and install 12.04 and issues is still the same.

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  • Wifi Hotspot not created in ubuntu 12.04

    - by user2406568
    I am using Hp Pavillion g4 with braodcom wireledd adpater. I have the following hardware configuration, for lan and wifi eth0 Link encap:Ethernet HWaddr 10:1f:74:b2:61:cc inet addr:10.3.10.45 Bcast:10.3.11.255 Mask:255.255.252.0 inet6 addr: fe80::121f:74ff:feb2:61cc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:190855 errors:0 dropped:0 overruns:0 frame:0 TX packets:133209 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:77642990 (77.6 MB) TX bytes:25290447 (25.2 MB) Interrupt:44 Base address:0x6000 eth1 Link encap:Ethernet HWaddr 38:59:f9:7d:d6:b2 inet addr:10.3.9.180 Bcast:10.3.11.255 Mask:255.255.252.0 inet6 addr: fe80::3a59:f9ff:fe7d:d6b2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:245562 errors:82 dropped:0 overruns:0 frame:408011 TX packets:90383 errors:260 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:140772881 (140.7 MB) TX bytes:13041542 (13.0 MB) Interrupt:16 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:3230 errors:0 dropped:0 overruns:0 frame:0 TX packets:3230 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:435198 (435.1 KB) TX bytes:435198 (435.1 KB) whenever I click on create hotspot nothing happens. Any solution???

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  • cannot get my wifi to work on my acer aspire 5552

    - by stuart
    I am very new to this forum and also linux. I have managed to install wubi on my laptop fine and I can get on the net with ethernet, But when I try to download and install the wifi drivers it keeps giving me what I think is a generic var/ log error and just starts to hang on install then says it will not install. Can anyone help please as I really really want to move from windows and this is not helping me..A big thanks in advance :)

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  • Wifi connection problems

    - by user12511
    I have Ubuntu 10.10 installed on a HP Pavilion DV2750ea. The wifi card is an Intel 4965AGN. When I first started using Ubuntu on this laptop it connected wirelessly to the network. Then it suddenly stopped. The Wifi card power light is off and all information says the card is disabled. When the laptop is powered on the wifi power light turns on and stays on until Ubuntu finishes loading. I have replaced the wifi card and the wifi switch module with no change. Please can you help.

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  • Backup networks

    - by MegaBrutal
    My USB Wi-Fi adapter tends to overheat and when it happens, it stops working until I pull it out and plug it in again. Since I often access my machine remotely from other places, when it happens, my machine gets inaccessible for me until I get home to fix it. I'm thinking, I have another USB Wi-Fi adapter in spare. Would it be possible to plug it in that too but tell Ubuntu to only use it when the primary Wi-Fi adapter becomes off-line? (I won't use the other Wi-Fi adapter as primary because it provides significantly less quality.)

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  • Why can't my Wifi cannot connect or disconnect?

    - by tmy1018
    Wifi connection might drop spontaneously or simply cannot connect. Users on Ubuntu 10.04 and 11.04 have reported experiencing the problem. Running dmesg would show: [210749.637705] wlan0: deauthenticating from 00:23:89:48:3b:b0 by local choice (reason=3) [210778.632244] wlan0: deauthenticating from 00:23:89:48:3b:b0 by local choice (reason=3) [210784.456359] wlan0: deauthenticating from 00:23:89:82:75:70 by local choice (reason=3) which is pretty cryptic. I have tried: kill -9 wpa_supplicant, but wpa_supplicant keeps getting restarted each time. Also, some have suggested that this was caused by enabling power management. However, this might not be true, as the problem has presented itself in a situation where power management was disabled.

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  • update manager has killed wifi after i finally got it working [closed]

    - by Bobble Off
    HI i had just got my wifi to work properly in 12.04 and I got a pop up from update manager saying there was 100's of updates I needed to install so i installed them it then said I needed to reboot which I did but now my wifi isn't working I go add a new connection and I have no wifi option just Ethernet also the pci card is showing no signs of life (the green light is not light) but when i go in to terminal and type lspci it is showing my wifi card in the list whats gone wrong and how do i fix it???

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  • Upgrading from Ubuntu 12.04 to 14.04 for better WIFI connection - Any problems to be expected?

    - by lindeblau
    Since upgrading from Ubuntu 10.04 to 12.04 on my ACER Aspire One D270 I have problems with WIFI-connectivity. I was planning now to upgrade to Ubuntu 14.04 hoping to solve this problem. On reading the last bunch of questions posted here I find quite a few regarding problems which arose after installing Ubunto 14.04. Would like to get opinions - is it worth upgrading yet or are to many problems to be expected?

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  • How to share my usb modem's internet connection in ubuntu12.04?

    - by Nandlal
    I am using ubuntu 12.04 on my notebook and my primary internet connection is reliance netconnect. I want to share it on my android smartphone, but have no idea about sharing usb modem on linux. I was able to share the same on wondows 7 using the software provided by the notebook manufacturer. Again it's my bad luck that the manufacturer(Samsung) does not provides any driver or software for notebook for linux os they only provide it for windows os, but still some of the features work same as on windows without any driver or software. Please help me.

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  • How to create a wifi hotspot in ubuntu 12.04 and use it on WP7.5?

    - by VPCEB14EN
    I have been trying for many days to create a wifi hotspot with my laptop running ubuntu 12.04 and connect it to my windows phone7.5 based HTC Mozart. I have gone through many articles related to this, but none of them help. I create a wifi hotspot as suggested by some experts, but it isn't detected either by my phone or on other laptops. My laptop is Sony Vaio VPCEB14EN with these specifications .

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  • How to debug wifi connection?

    - by mmb
    I am using Ubuntu's Network Manager to connect to a local wifi router. My problem is, that it often disconnects without any visible reason (router is on, internet connection seems to be working, wifi diodes are blinking). I mostly have to disable wifi from Network Manager, enable it again to get wifi connecting again. Plus I am often experiencing Network Manager trying to connect to my wifi, trying several times but then giving up. I even tried an external usb-wifi card, but with the very same results. My question is: How can I debug this? Which logs should I read to see what is really happening when all of these errors occur - so I can post them here and see how to proceed?

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  • How can I force WiFi connection to only use ipv4?

    - by krasilich
    I have Broadcom bcm43224 wifi card with proprietary broadcom sta driver. At home wifi connection works well, but in the office when I ping some resource there is a lot of loss packets and I cant browse websites. I have tried another way to check internet connection - download file with wget. wget google.com - very slow speed wget -4 google.com - normal speed So, it seems that the problem is with the ipv6 configuration at the office, can I force my wifi connection to use only ipv4 and completely ignore ipv6 ?.

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  • knetworkmanager not starting at all

    - by yoshi
    It seems that my knetworkmanager is not starting anymore. Read: In KDE4's sys tray I don't have a icon to manage my networks. Also when starting it from terminal or kick off menu literally "nothing" happens. I don't know what's wrong with it. Sadly after reading this answer on superuser.com it seems I can not connect to wifi via iwconfig 'cause my network is WPA2 encrypted. (Basically I can not set they passphrase - invalid argumenterror.) So it seems I've to get knetworkmanger running again as I also can't download other tools. I've tried stuff like sudo service network-manager restart but it didn't seem to help. I'm kinda puzzled so any help for this would be appreciated. PS: If it hasn't become clear: The whole drama of is simply I can't connect to wifi and internet :o)

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  • Cannot get laptop wifi to work in ubuntu 12.4

    - by Coda
    Hi i have a Toshiba Satellite L645D-S4106 laptop and i recently installed ubuntu 12.4 on it and i cannot get the wifi to connect for the life of me. When i tried ubuntu out before installing it, the wifi worked while windows was still installed on it. Then i installed ubuntu and now there is no wifi. I can't even flip the wifi network switch to the on position. I installed the driver from realtek for the linux driver and still nothing. Doing rfkill list all shows soft blocked: no and hard blocked: yes. Can anyone help me :p haha very frusterating. It probably is something very dumb. Thanks

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  • Play music from computer on phone, over WiFi?

    - by wim
    Wasn't sure whether to ask on here on on android.stackexchange.com ... but I want to play music which is on my desktop machine through my phone. The music is coming from ext4 partition which I am happy to share on the LAN. It should use WiFi not bluetooth (because I hope to use the bluetooth interface for other things, simultaneously). Is it possible and what do I need to setup on the desktop (on Ubuntu 12.04) and/or my phone (galaxy nexus)? edit: Just to clarify, I want the music to be playing from the phone, not through the desktop's speakers.

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  • Ubuntu 12.04 wifi problem

    - by Akaash
    I'm having trouble with wifi on my MSI U180 netbook using Ubuntu 12.04. When I boot up the netbook, it will connect to my router however after a few minutes the wifi will just stop working and not find or connect to any networks. The only way to get wifi connectivity back is to reboot the netbook however the connection will again only last a few minutes. A wired connection works fine. I have tried connecting to a different router and the same thing happens. My friend has the same OS and netbook and his works fine. Does anybody have any possible solutions? Thanks in advance.

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  • mySQL date range problem

    - by StealthRT
    Hey all i am in need of a little help with figuring out how to get a range of days for my select query. Here is the code i am trying out: select id, idNumber, theDateStart, theDateEnd from clients WHERE idNumber = '010203' AND theDateStart >= '2010-04-09' AND theDateEnd <= '2010-04-09'; This is what the data in the table looks like: TheDateStart = 2010-04-09 TheDateEnd = 2010-04-11 When testing that code above, it does not populate anything. If i take out the TheEndDate, it populates but with some other tables data as well which it should not do (it should only get one record). I know the problem is within the two date's. I'm not sure how to go about getting a date range for theDateStart and theDateEnd since if someone tries it, say, on 2010-04-10, it still needs to know its within rage of the 2010-04-09 - 2010-04-11. But right now, it does not... Any help would be great! :o) David

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  • Excel.Range.Find method

    - by Sathish
    I am using Excel interop object and trying to find a date in a specified range by below method Excel.Range rngFind = WS.get_Range(strFromRange, strToRange).Find(strFind, Type.Missing, Excel.XlFindLookIn.xlFormulas, Excel.XlLookAt.xlPart, Excel.XlSearchOrder.xlByRows, Excel.XlSearchDirection.xlNext, false, false, false); but i get rngFind as null always my strFind = "Sep-08" i tried with both Excel.XlFindLookIn.xlFormulas and Excel.XlFindLookIn.xlValues my excel file looks like this Sep-08 Oct-08 Nov-08 Dec-08 Jan-09 Feb-09 Mar-09 Apr-09 May-09 Jun-09 Jul-09 where as wheni click on Sep-08 cell i get 9/1/2008 in the formula field in Excel i have also tried searching for 9/1/2008 but it varies system by system as per the RegionalSettings Date format... Please help me. basically i am doing to get the cell address of the finding string

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  • Range partition skip check

    - by user289429
    We have large amount of data partitioned on year value using range partition in oracle. We have used range partition but each partition contains data only for one year. When we write a query targeting a specific year, oracle fetches the information from that partition but still checks if the year is what we have specified. Since this year column is not part of the index it fetches the year from table and compares it. We have seen that any time the query goes to fetch table data it is getting too slow. Can we somehow avoid oracle comparing the year values since we for sure know that the partition contains information for only one year.

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  • TStringGrid with BOTH editing AND range selection?

    - by Kevin Killion
    Question: Can anyone point to an article or code samples anywhere on how to provide BOTH editing AND range selection in a TStringGrid? Yes, I KNOW there are third-party grids that do this, but it's frustrating that the built-in grid lacks this basic capability. Background: It's pretty normal to expect to be able to both edit a cell in a grid, and also to select a range of cells such as for a Copy operation. As delivered, TStringGrid doesn't do that. It's either/or. In fact, the docs tell us about the grid Options, "When goEditing is included in Options, goRangeSelect has no effect". However, it looks like it may be possible to do editing and rangeselects in a TStringGrid anyway!!! Through careful use of the mousedown, mouseup, selectcell and exit events, you can get dang close by switching editing elements on and off at the right times. But I still don't have it perfect, and that only covers mouse use, not keyboard changes.

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  • Select a row having a column with max value - On a date range

    - by Abhi
    Excuse me for posting a similar question. Please consider this: date value 18/5/2010, 1 pm 40 18/5/2010, 2 pm 20 18/5/2010, 3 pm 60 18/5/2010, 4 pm 30 18/5/2010, 5 pm 60 18/5/2010, 6 pm 25 19/5/2010, 6 pm 300 19/5/2010, 6 pm 450 19/5/2010, 6 pm 375 20/5/2010, 6 pm 250 20/5/2010, 6 pm 310 The query is to get the date and value for each day such that the value obtained for that day is max. If the max value is repeated on that day, the lowest time stamp is selected. The result should be like: 18/5/2010, 3 pm 60 19/5/2010, 6 pm 450 20/5/2010, 6 pm 310 The query should take in a date range like the one given below and find results for that range in the above fashion: where date = to_date('26/03/2010','DD/MM/YYYY') AND date < to_date('27/03/2010','DD/MM/YYYY')

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  • apply style to range of text with javascript in uiwebview

    - by drawnonward
    I am displaying some simple styled text as html in a UIWebView on iPhone. It is basically a series of paragraphs with the occasional strong or emphasized phrase. At runtime I need to apply styles to ranges of text. There are a few similar scenarios, one of which is highlighting search results. If the user has searched for "something" I would like to change the background color behind occurrences of the word, then later restore the original background. Is it possible to apply styles to ranges of text using javascript? A key part of this is also being able to unset the styles. There seem to be two likely paths to follow. One would be modifying some html in Objective-C and passing it through javascript as the new innerHTML of some container. The other would be to use javascript to directly manipulate DOM nodes. I could manipulate html, but that sounds tedious in Objective-C so I would rather manipulate the DOM if that is a reasonable approach. I am not that familiar with javascript and DOM so I do not know if it is a reasonable approach. I wrote some routines to translate between text ranges and node ranges with offsets. So if I start with text range 100-200 and that starts in one paragraph and ends in a third, I can get the text nodes and the offsets within the nodes that represent the given text range. I just need a way to split a text node at an offset in the text. Currently I just apply styles to the paragraphs containing the text range. A few notes: straight javascript please, no external frameworks like jquery. the changes never need to be written to disk. the changes should be undoable or at least removable. the styles to apply already exist in a css file. it needs to work in iPhone 3.0 and forward. all the source files are shipped with the app. please be verbose. Thanks for any suggestions.

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  • Getting column index out of range, 0 < 1

    - by Natraj
    I am using OpenJPA 2.2.0 and when I am executing a select statement I am getting "Column index out of range, 0 < 1" error. EntityManager entityMgrObj = emf.getEntityManager(); entityMgrObj.clear(); Query query = entityMgrObj.createNativeQuery("select * from company_user where user_id = 1001); List<CompanyUserDO> companyUserDOObj = null; try { companyUserDOObj = query.getResultList(); } catch (Exception e) { System.out.println(e.getMessage()); } When the query.getResultList() executes I get "Column index out of range, 0 < 1" error. Can somebody let me know what is wrong in the above code?

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  • Searching a 2D array for a range of values in java

    - by Paige O
    I have a 2^n size int array and I want to check if an element exists that is greater than 0. If the element exists, I want to divide the array by 4 and check if the coordinates of the found element are in the 1st, 2nd, 3rd or 4th quadrant of the array. For example, logically if the element exists in the first quadrant it would look something like this: If array[][] 0 && the row of that coordinate is in the range 0-(grid.length/2-1) && the column of that coordinate is in the range 0-(grid.length/2-1) then do something. I'm really not sure how to check the row and column index of the found element and store those coordinates to use in my if statement. Help!

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  • Behavior with primitive data types' value out of range & C99's PRI* macros

    - by Yktula
    Say we have an 8-bit unsigned integer n (UINT8_MAX=255); what is the behavior of the compiler for n=256? Where can I find a table of default behavior when the value of a data type is out of range for different data types? Is there a pattern to how they behave when set out of range? #include <stdio.h> #include <inttypes.h> uint8_t n = UINT8_MAX; int main() { printf("%hhu ",n++); printf("%hhu",n); return 0; } Compiling with gcc -std=c99 -Wall *.c, this prints: 255 0 Also, is it acceptable to use C99's PRI* macros? How are they named?

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