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• ubuntu is very slow

  - by johnny smithens

  Hello all. I am new with Ubuntu, and it is very slow(even in Ubuntu 2D). The performance is degraded for almost any task. I just reinstalled with amd64, and tried updating the Nvidia drivers with Nvidia Xserver. but it made no difference. This is the output of free -m: total used free shared buffers cached Mem: 3006 1318 1688 0 61 699 -/+ buffers/cache: 556 2449 Swap: 3064 0 3064 tl;dr - total: 3006, used: 1318 When I see the virtual console with Ctrl+Alt+F2, I see constantly: Assuming Drive Cache: write through; asking for cache data failed; It is very frustrating. Thanks in advance!

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• How do I install BCM4312 wireless drivers?

  - by t3ch

  completely new to Ubuntu. How do I add Wireless driver for my laptop? I am running a Dell XPS M1330. Right now its acts as if I dont have a Wi-Fi card. :~$ lspci 00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c) 00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 0c) 00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02) 00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02) 00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02) 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02) 00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02) 00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02) 00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2) 00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 02) 00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 02) 00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02) 01:00.0 VGA compatible controller: nVidia Corporation G86 [GeForce 8400M GS] (rev a1) 03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05) 03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22) 03:01.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12) 03:01.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12) 09:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02) 0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)

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• Overheating laptop

  - by Moncef ben slimane

  i've been using ubuntu for ~2 months, when i installed it on my computer (laptop) it never overheat but a day, i don't know what happened, it over heated.. (70*C @ Idle) I've tryed what ever i found on the net, and as well, i can't change the CPU freq o.O, i5 M460 @ 2.53 GHz.. i have benn trying, jupiter (no result), lm-sensors (aswell), and the cpu freq thingy for unity (cpu wont move from 2.5GHz) Any help? (i'm a C++ user and PHP coder...)

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• Wifi speed with driver rtl8187 drops

  - by Peter

  I am using lucid lynx with this USB adapter and drivers rtl8187. When I start a download, it starts at 1500kpbs (if i use "iwconfig wlan0 rate [more than 11MB]" it starts at a lower speed), it transfers a few kbs but then the speed starts to drop constantly and nothing is being transferred. I've also tried the driver r8187, but I have the same speed problem only that with this driver the download starts at only 10kbps, and drops from there. What can I try to identify the cause and fix this problem?

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• 64 bit Ubuntu sees half my RAM

  - by koehn

  This is on my AMD FX(tm)-4100 Quad-Core Processor (according to /proc/cpuinfo) on a machine with two 4GB RAM DIMMs. BIOS shows 8GB RAM installed. Any help would be appreciated. RAM: Extreme Performance Sector 5 G Series 8GB DDR3-1333 (PC3-1066) Enhanced Latency Dual Channel Desktop Memory Kit (Two 4GB Memory Modules) MB: GA-78LMT-S2P Socket AM3+ 760G mATX AMD Motherboard CPU: FX 4100 Black Edition 3.6GHz Quad-Core Socket AM3+ Boxed Processor Here's what the software says: $ free total used free shared buffers cached Mem: 3515100 3293656 221444 0 19260 2670352 -/+ buffers/cache: 604044 2911056 Swap: 3650556 90916 3559640 $ uname -a Linux mythbuntu 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24 16:52:48 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux From lshw: *-memory description: System Memory physical id: 20 slot: System board or motherboard size: 4GiB *-bank:0 description: DIMM 1066 MHz (0.9 ns) product: None vendor: None physical id: 0 serial: None slot: A0 size: 2GiB width: 64 bits clock: 1066MHz (0.9ns) *-bank:1 description: DIMM 1066 MHz (0.9 ns) product: None vendor: None physical id: 1 serial: None slot: A1 size: 2GiB width: 64 bits clock: 1066MHz (0.9ns)

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• Broadcom BCM4313 working, but terribly slow

  - by Ataraxio Panzetta

  Hi all, I've installed ubuntu on a Asus 1015 netbook. Everything worked out of the box except for the Wireless adapter, which i had to install with the Additional Drivers application. It apparently installed fine and connects to our wireless network, but it only works at a "funny" speed range that goes from 367Bytes to a peak of 3Kb in its best moments. I know for sure the problem is neither the network nor the hardware. Network speeds are normal under windows on this laptop and in other computers with ubuntu aswell. lspci says the card is a BCM4313 model, but the Addittional Drivers Manager says these packecege contains Broadcom 802.11 Linux STA wireless driverfor use with Broadcom's BCM4311-, BCM4312-, BCM4321-, and BCM4322 based hardware seems like it installed the wrong driver... Is there anything I can do? I'm not concerned about compiling the driver or stuff like that, but I'm not sure on where to start... any help or guidance will be very, very appreciated.

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• Ubuntu installation error on a windows machine

  - by Rahul

  Was trying to install Ubuntu from a CD on a machine which already has windows on it, choose the option of "Resize IDE1 master (hda) and use freed space" during the "Install the base system" step. After that i get the error- "Unable to install initrd-tools. An error was returned while trying to install the initrd-tools package into the target system. Check /target/var/log/bootstrap.log for details. The problem is one one hand i cannot proceed with the complete installation and on other hand if i remove the CD, am not able to boot windows as it says No bootable device. Would highly appreciate for any recommendations.

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• How to Run files and open folders as an administrater 11.10

  - by Mattlinux1

  Solved!!! Enable open as administrator in nautilus! To get started, press Ctrl – Alt – T on your keyboard to open Terminal. When it opens, run the commands below: enter code here sudo apt-get install nautilus-gksu After installing that application run copy and paste the line below and press enter. sudo cp /usr/lib/nautilus/extensions-2.0/libnautilus-gksu.so /usr/lib/nautilus/extensions-3.0/ Finally, log out and back in then go and test it, by clicking your right mouse click on the file you want to run as Admin and your see a popup menu with the words: open as administrater. Visit: http://www.liberiangeek.net/2011/12/add-open-as-administrator-to-nautilus-context-menu-in-ubuntu-11-10-oneiric-ocelot/ for help and from here. Enjoy!

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• Ubuntu Server won't boot with "zip2: Compressed file ends unexpectedly" error

  - by Oetzi

  I am trying to boot lucid server on my new VPS but its giving me some problems. The boot gets to a point where it hangs. At this point it says: No such file `modules-2.6.31-20-server-amd64.tar.bz2' zip2: Compressed file ends unexpectedly You can use the `bzip2recover' program to attempt to recover data from undamaged sections of corrupted files. tar: Child returned status 2 tar: Exiting with failure status due to previous errors Module installation failed. Does anyone have any ideas how I might be able to fix this? Sorry that this is rather vague!

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• which kernels can I safely purge?

  - by ecoologic

  I use the main answer of this question quite often to clear some space, but now I'm in extreme need and I'd like to better understand which kernels are safe to purge, my list is the following 10:50:58-673 - ~> dpkg -l | grep -Eo "^.i +linux-(image|headers)[^ ]+" | cut -c 5- | grep --color -E "$|"`uname -r` linux-headers-2.6.38-15 linux-headers-2.6.38-15-generic linux-headers-2.6.38-15-generic-pae linux-headers-2.6.38-16 linux-headers-2.6.38-16-generic linux-headers-2.6.38-16-generic-pae # current one linux-headers-generic linux-headers-generic-pae linux-headers-server linux-image-2.6.38-15-generic-pae linux-image-2.6.38-16-generic-pae linux-image-generic-pae linux-image-server Is it enough to keep linux-headers-2.6.38-15 linux-headers-2.6.38-15-generic linux-headers-2.6.38-15-generic-pae linux-headers-2.6.38-16 linux-headers-2.6.38-16-generic linux-headers-2.6.38-16-generic-pae # current one Or would this be enough linux-headers-2.6.38-15-generic-pae linux-headers-2.6.38-16-generic-pae # current one Or which other would be the shortest (keeping the previous one too)? And why?

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• Notebook overheating

  - by user71372

  I'm asking this question because I've tried many tips to solve they don't work and it sounds like a non-fixed bug ubuntu. My problem is with overheating. I've recently installed Ubuntu Precise 12.04 LTS alongside with MS Windows 7 on my notebook Samsung 530U. I'm using both via dual-boot mode. I've no heating problem with MS Win 7 and the fan speed is normal even with long run utilization. However, when booting with Ubuntu and after short time, the PC got very hot and the fan was running at max speed. I installed a tool called Jupiter, I put it in "Power Saving" mode but no result. Now, I avoid using ubuntu because I fear it'll damage my all new notebook. Please can you give me a "FINAL" fix of this problem (lot of answers exist but I don't know the more accurate and efficient one). Thank you in advance.

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• atftp pcre pattern

  - by CE-SA

  I've a question about the package named 'atftp'. I've got the atftp daemon finally working. Previously I was using tftp-hpa with a custom rule that replaces filenames with capitals into non-capital filenames and replaces the backslashes into forward slashes so that WinPE will boot fine. But in atftp I can't find rules or replacements like that. I'm searching for long, but cannot find or write the right pcre-pattern. Could you help me with this?

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• How do I install 10.04 on a Vortex86DX embdedded system?

  - by mathematician1975

  I am trying to install Ubuntu on a Netcom NC-499 board that contains a Vortex86DX processor. The processor vendor claims support for Ubuntu 10.04 but I am having problems installing it. I am trying to install to a 8GB compact flash card attached to the board with an IDE connector, using a USB connection CD-Rom drive and a burned ISO image obtained from this link http://old-releases.ubuntu.com/releases/10.04.0/ubuntu-10.04.3-desktop-i386.iso . Installation proceeds up to the point of around 78% but during the stage where the installer informs me that it is "configuring apt", the installer terminates with a popup dialog containing the following "The installer encountered an unrecoverable error. A desktop session will now be run so that you may investigate the problem or try installing again." I have no idea what to do at this point. I am a Linux novice and I do not really know how to investigate the problems with the installation. I have configured the BIOS exactly according to how the vendor specifies and they assure me that this version is fully compatible with their hardware and yet I am unable to get a decent install. I am able to install Ubuntu 8.04 using exactly the same procedure successfully so I am sure there is no problem with my CD-Rom compatibility or the compact flash drive. Any help will be gratefully received.

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• How USB drives goes after system hard drives

  - by raihanchy

  I am using Ubuntu 12.04 LTS. My hard drives usually comes as: sda, with 'sudo blkid' and if I plug-in any USB drive, they comes as: sdb, sdc etc; after sda. That's fine!!! But problem arises after I restart my laptop with connecting those USB drives. They alter and comes first and hard drive goes to the end, like: 'sudo blkid' shows, sda, sdb for USB drives and sdc for hard drives. It's making problem to mount with /etc/fstab. I couldn't find any solutions for this. I would like to have any USB drives after my system hard drives, as in Windows. Please, help me at this point. Thanking you. Raihan

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• What does the crash mean? And why is my Ubuntu Blackbox is crashing how can i check deeply?

  - by YumYumYum

  My system was running for a while amount of 6 hour. Two times i loss remote access and it was not functioning anymore IP is gone etc etc. 3 time showing crash but i have no idea what and why. How to know what went wrong? $ last sun pts/0 d51a429c9.access Mon Mar 19 13:44 still logged in sun tty7 :0 Mon Mar 19 12:17 still logged in reboot system boot 2.6.38-8-generic Mon Mar 19 12:17 - 13:49 (01:31) sun pts/0 d51a429c9.access Mon Mar 19 10:05 - crash (02:12) sun tty7 :0 Mon Mar 19 10:00 - crash (02:16) reboot system boot 2.6.38-8-generic Mon Mar 19 10:00 - 13:49 (03:48) sun pts/0 d51a429c9.access Mon Mar 19 09:24 - down (00:35) sun tty7 :0 Mon Mar 19 09:20 - down (00:39) reboot system boot 2.6.38-8-generic Mon Mar 19 09:20 - 10:00 (00:39) sun pts/2 d51a429c9.access Sun Mar 18 18:04 - down (01:14) sun pts/1 d51a429c9.access Sun Mar 18 17:43 - down (01:35) sun pts/0 d51a429c9.access Sun Mar 18 15:07 - 18:47 (03:40) sun pts/1 d51a429c9.access Sun Mar 18 12:58 - 17:42 (04:43) sun pts/0 d51a429c9.access Sun Mar 18 10:21 - 15:06 (04:44) sun tty7 :0 Sun Mar 18 08:56 - down (10:22) reboot system boot 2.6.38-8-generic Sun Mar 18 08:56 - 19:19 (10:22) sun tty7 :0 Sat Mar 17 18:03 - down (14:51) reboot system boot 2.6.38-8-generic Sat Mar 17 18:03 - 08:55 (14:51) sun tty7 :0 Sat Mar 17 15:00 - down (01:38) reboot system boot 2.6.38-8-generic Sat Mar 17 15:00 - 16:39 (01:38) sun pts/0 d51a4297d.access Sat Mar 17 10:45 - 14:32 (03:46) sun tty7 :0 Fri Mar 16 18:46 - crash (20:14) reboot system boot 2.6.38-8-generic Fri Mar 16 18:46 - 16:39 (21:53) $ sensors acpitz-virtual-0 Adapter: Virtual device temp1: +27.8°C (crit = +100.0°C) temp2: +29.8°C (crit = +100.0°C)

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• How to prevent system to generate log file

  - by shantanu

  My Question is little bit surprising, but i need it. I am using a slow processor laptop, now i found that HDD has some bad sectors and HDD response becomes slow. But disk health is ok(according to smart tools). I can not change my HDD right now. So decide to reduce disk operation. How do i prevent system to generate log file or any other file which are used to keep history? I know LOG file is very important but i don't care it right now. Please help.

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• How do I get my Broadcom BCM4313 working correctly?

  - by Ataraxio Panzetta

  I've installed ubuntu on a Asus 1015 netbook. Everything worked out of the box except for the Wireless adapter, which i had to install with the Additional Drivers application. It apparently installed fine and connects to our wireless network, but it only works at a "funny" speed range that goes from 367Bytes to a peak of 3Kb in its best moments. I know for sure the problem is neither the network nor the hardware. Network speeds are normal under windows on this laptop and in other computers with ubuntu aswell. lspci says the card is a BCM4313 model, but the Addittional Drivers Manager says these packecege contains Broadcom 802.11 Linux STA wireless driverfor use with Broadcom's BCM4311-, BCM4312-, BCM4321-, and BCM4322 based hardware seems like it installed the wrong driver... Is there anything I can do? I'm not concerned about compiling the driver or stuff like that, but I'm not sure on where to start... any help or guidance will be very, very appreciated.

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• Motherboard and Processor sync error panic and killing init

  - by pradeep

  I have installed Ubuntu 12.04LTS for the first time and this has problems while working. the system hangs out and panic error showing the message that motherboard and processor not syncing and attempted to kill init. I have a Gigabyte GA-MA74GMT-S2(AM3) board AMD Phenom II X2 555 processor 4gb ddr3 ram with L6 cache I would like to know why is this problem happening. this is a separate installation and system is also having windows7 running as a separate installation. need help fixing this.

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• How can I limit the number of open AF_INET sockets?

  - by Stefano Palazzo

  Is there a way to limit the number of concurretly open AF_INET sockets (only)? If so, how do I do it, and how will the networking behave if I'm above the limit? For background: My cheap commodity router is a bit eager to detect 'syn flooding'. When it does, it crashes (and doesn't automatically restart itself). I'm thinking limiting concurrent connections to around 1000 should keep it from bickering.

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• How do I debug an overheating problem?

  - by Tab

  Hello guys. I have a problem with my Laptop (Dell Inspiron 1564 Core i5 4GB Ram VGA ATI Mobility Radeon HD 4300 running Ubuntu 10.10 32bit). It shuts down abruptly without even a lag in the application I am working with before shutdown. I think it's overheating problem. Actually the laptop is hot all the time when I am running Ubuntu. When I switch back to windows, even with intense load it won't shutdown or show any problem as long as I keep proper ventilation (when the air openings are blocked it does the same). Actually on Ubuntu i don't usually do things that need much CPU power, usually surfing internet, coding web pages and sometimes playing with python and ruby. I am not enabling desktop effects so no GPU load except the normal GNOME gui. Now as I am writing the Processor load in the panel monitor applet is 0%, Memory 11% by programs, 22% by cache. And i have CPU Frequency monitor for each of the 4 cores set to 1.20 Ghz (the lowest possible value, i am not sure if this applet does really limit CPU usage). Running sensors in terminal gave me temp1: +26.8°C (crit = +100.0°C) temp2: +0.0°C (crit = +100.0°C) hddtemp /dev/sda at the terminal gave me /dev/sda: WDC WD3200BEVT-75ZCT2: 46°C All that fine but the laptop is Really hot i can feel it in the keyboard, mouse pad is painful to touch, and the fan is always spinning. I am also placing 2 small fans running on USB under the laptop right now and the laptop is lifted over the fans so it's well ventilated. When I am running windows it doesn't get that hot except when there is a really big load on the CPU and this is keeping me away from using Linux for everyday tasks. Actually I don't care much for speed as I can deal with low speed it's not going to shutdown abruptly. So please if you can help me and tell me what are the possible causes, where should I start ?

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• Change default display of the Ubuntu screen

  - by r15

  Currently I am working on a customize device which has Ubuntu 12.10. Now I have to restructure the screen of that device. I have added sample design of the screen. We are getting this screen when we start the device. How can I achive this. I know for this I have make changes in many configuration files of ubuntu. But I don't know how to start and in which files I have to make changes. So that I need some guidelines for this? and we are using lightdm as display manager. Feel free to ask me any question and sorry for bad english.

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• How do I install penmountlpc?

  - by ændrük

  I would like to install the penmountlpc touchscreen driver in Ubuntu 11.10 on a Dialogue Flybook A33i. When I try installing it from the source packed in penmountlpc-source_1.1_all.deb, I receive the following build error (see also the full build log): # Install the module cp penmountlpc.o debian/penmountlpc-modules-3.0.0-12-generic/lib/modules/3.0.0-12-generic/misc cp: cannot create regular file `debian/penmountlpc-modules-3.0.0-12-generic/lib/modules/3.0.0-12-generic/misc': No such file or directory make[1]: *** [binary-modules] Error 1 make[1]: Leaving directory `/usr/src/modules/penmountlpc' make: *** [kdist_build] Error 2 How can I resolve this problem?

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• Why does 12.04 try but fail to hibernate, even after I enabled hibernation?

  - by Roger Davis

  Regarding the below (-----) info from another post, my system will try (as is said below) to hibernate, but it won't get all the way there. Hard drive activity stops, but it does not shut down. If I turn the power off, then back on, it will start, but I have to "restore previous session" in the browser and other open apps don't restart, with the accompanying hassle. So because it tries, will the suggested fix then cause it to work correctly, or is the literal "try" not really what he means?!? PLEASE NOTE - this is a desktop system, not a laptop. Before enabling hibernation, please try to test whether it works correctly by running pm-hibernate in a terminal. The system will try to hibernate. If you are able to start the system again then you are more or less safe to add an override. To do so, start editing sudo nano /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla Fill it with this [Re-enable hibernate by default] Identity=unix-user:* Action=org.freedesktop.upower.hibernate ResultActive=yes Save by pressing Ctrl-O and exit nano by pressing Ctrl-X Restart and hibernation is back!

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• Ubuntu 12.10 not properply working on Asus u46E after Update

  - by John Oakland

  I recently installed the latest Ubuntu update on my laptop and since then, the alignment on the browser is messed up, the mouse is not working, and I can't connect to the internet. Before it was working perfectly. Any ideas on what to do? Thanks for any feedback FYI: I am right now using windows since I have both linux and windows on my laptop. Also, when booting I do have the option to boot previous ubuntu versions, when I boot the previous unbuntu version on my laptop, everything works accept except the internet. (the mouse works, alignment is proper)

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• Are the Ralink RT3090 drivers incompatible with Ubuntu 10.10?

  - by xd1936

  Ralink Technology publishes their drivers in source code form on their website here. When complied with make and make install in 10.04, the drivers worked well in 32 and 64 bit versions of Lucid. However, when compiled for the 64 bit version of Maverick, it does not work at all, and 32 bit Maverick, it works but randomly disconnects. Both versions of Maverick say "[Proprietary] Driver is activated but not in use" in the Proprietary Drivers dialog. Do the drivers just need to be updated? Is there an easy fix?

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