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As I reported today on Ubuntu 14.04 Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader isn't working : # modprobe -r rtsx_pci # modprobe rtsx_pci with a kernel starting from 3.9 will do. One need to investigate why it gets disable.


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If you want good compatibility, get a laptop pre-installed with Ubuntu, if you can. For example, Dell XPS 13, although technically it is not a laptop, but an ultrabook, so no LAN, HDMI or SD card reader. But there's 2 USB ports, a touchscreen, an integrated webcam and a Mini Display port.


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Dell now offers some hardware with linux pre-installed. You could also go with System76, where they only sell hardware with Ubuntu installed, and have some cheaper (subjectively) options and some nicer, high performance options. I think that might be where I get my next laptop myself.


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You could wait if you want. The only thing thing that blacklisting these modules does is revert the linux kernel to using PIO instead of DMA, which are both ways that data is sent between the CPU and hardware. Differences between the two is explained here: http://www.differencebetween.net/technology/difference-between-dma-and-pio/ I can personally say ...


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You should try adjusting your power settings, specifically your maximum processor usage to reduce excessive heat build up. This is not something that can be accomplished with a single button click, but it is possible using some lightweight software. THIS PAGE explains step-by-step how to achieve this. It is a relatively lengthy article, so I won't re-type ...


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I have the version with i3-4000m cpu, without dedicated graphics. Runs well with Windows 7 x64. Ubuntu 14.04 (actually haven't tried it with the main edition, only Xubuntu, Kubuntu and Ubuntu Gnome ed.), in both x32 and x64, experiences random freezes, that can be solved only by a hard reboot. Ctrl-Alt-Backspace doesn't work, even if enabled, nor does ...


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This is apparently a known issue and won't be fixed. The solution is to suspend once manually, then ACPI functions will work until the next reboot.


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Very short answer: Yes. Short Answer: Yes, but graphics might not work. Answer: Theoretically, Ubuntu should run on any modern computer. Yours is good enough for base specs. You might need to install some custom drivers for your computer, though. You can access this in the Software prefpane in your control panel. You can test whether it will actually ...


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Did you installed gstreamer plugin ? To install it launch software centre and install ubuntu restricted extras.


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normal shutdown and suspend functions can be had by blacklisting the DMA kernel modules so they dont load at boot. this also allows suspending and awakening when closing/opening the lid. do this by going to etc/modprobe.d/blacklist.conf with your text editor and adding these line of text: blacklist dw_dmac blacklist dw_dmac_core and save with superuser ...


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So, to help me-from-the-past to fix this: Dear me! You should read about xrandr, because this is simple terminal-operated program to work with screens. For some reason configuration after undocking has bugged and you have to turn on laptop's screen manually from xrandr for once and then everything will be well.


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I had the same issue even in Ubuntu 10.04, but, With me, changing the value from "blank" to "nothing" in the lid close options solved the issue. There is some difference with the two options though. With "blank" if I close the lid, video playback stopped (No audio of the video playback in mplayer while the lid was closed), however pure audio playback ...


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@bigbash after setting the brightness to a desired set value i am typing this command, /sys/class/backlight/acpi_video0/brightness, did the way u have suggested but it is not working.One more thing what ever value i set for brightness from settings after putting the above command always i am getting the same value i.e 15.


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linux-amd-catalyst-14.6-beta-v1.0-jul11 fixes it: http://www2.ati.com/drivers/beta/linux-amd-catalyst-14.6-beta-v1.0-jul11.zip Why did I ask for help then rather than simply installing linux-amd-catalyst-14.6-beta-v1.0-jul11? In fact, I had installed it with ubuntu-amd-catalyst-install 3.9 before posting here but it gave me a completely blank screen after ...


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This solved my problem: http://ubuntuforums.org/showthread.php?t=2222243 I follow the suggestion of shane-u (last entry) to update kernel: wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc5-utopic/linux-headers-3.15.0-031500rc5-generic_3.15.0-031500rc5.201405091635_amd64.deb wget ...


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Open the terminal. Type: xrandr --output LVDS1 --brightness 0.5 You can change 0.5 to any value. 0 will make the screen black and greater value than 0.5 will make the screen brighter.


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I've bought an ASUS n56jn and installed am Ubuntu-Gnome 14.04. Everything works fine but the graphic card. I am still not able to use NVIDIA 840M and it's working as fallback with intel graphic card. I hope that this can be solved with a newer release of NVIDIA drivers, but the laptop works very fine with Ubuntu (better than with Windows 8.1 ;-)). So, I ...


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I have the same problem whenever I unplug an external monitor; The first time I unplug, the screen is dimmed (at the same time as the screen/work areas are being reorganised, i.e. windows repositioned) Then I re-plug the external monitor and unplug again, and the screen is getting full lighting back (is "un-dimmed"). Now lately, I have also realised that ...


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for the wireless you have, it's Broadcom BCM43142 802.11b/g/n You might need to install the proprietary driver for it. Please connect to the Internet by using the Ethernet port (for download the driver), and open your dash, search for "driver, you will see a tool for this: Select the driver, press "apply changes" It should do the trick. ...


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Have you tried first to autoremove ? Looks like you have a dependency problem, I would run the following commands : sudo apt-get autoremove && sudo apt-get clean sudo apt-get update && sudo apt-get upgrade -y sudo apt-get dist-upgrade -y I'm sure you'll get more help on the way but, that's the first thing I would do when getting an error ...


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You can try installing proprietary drivers for your video card. Goto System Settings >> Software and Updates Click on Additional Drivers tab Choose the Proprietary driver with Updates Click on Apply Changes Reboot, and try again.


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I don't think you can prevent the hard drive from spinning up on boot. It is likely just your motherboard's POST or the BIOS probing the drive. Both actions are required for the hard drive to be accessible once you boot your Operating System. The commands you posted in your question should indeed set the drive to standby after you login or during the Ubuntu ...


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A cd drive would not have helped you either: you need a dvd drive for 14.04. From your list: "network" PXE install might be an option. See How do I set up a network installation? "hdd" create a 700 Mb-ish partition and put the Ubuntu ISO in there and have the system boot from that partition. See Install Ubuntu from ISO image directly from hard disk of a ...


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You can install "gpointing-device-settings", a graphical utility to set touchpad parameters: Run this command to install: sudo apt-get install gsynaptics Then launch the program with this command in a terminal: (possibly the installer made an icon in Unity system settings) gpointing-device-settings You will see interesting settings in "tapping" tab .


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Just map the following commands to a keyboard shortcut brightness `expr \`brightness\` + 10 brightness `expr \`brightness\` - 10


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It looks like the package libsane is in a weird state, because the package manager looks for a configuration file (*.dpkg-new) that is usually created when the package configuration stage would overwrite an existing and differing configuration file. I recommend that you try to re-install it: sudo apt-get install --reinstall libsane or if that doesn't word ...


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You're on the right track with logind.conf, but you only need to change this line from the default configuration: HandleLidSwitch=ignore (i.e. you don't need LidSwitchIgnoreInhibited=no). In addition, you need to configure xfce4-power-manager to handle the lid switch. I found that the reliable way was to Quit it from the power manager icon menu before ...


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It is not possible to use just a cell phone to create an SD card that will install Ubuntu First, Not all laptops have SD card readers and even if yours have one, there is no guarantee that your laptop can boot from the SD card. Second, downloading the file into an SD card using your phone is not enough. The card needs to be prepared using the downloaded ...


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You should be able to resize your display to the desired size from the command line by running xrandr -s $WIDTHx$HEIGHT (but substitute in your own values for $WIDTH and $HEIGHT). xrandr man page is here. There is a similar question that's already been answered here: How can I change screen resolution? If the problem turns out to just be that your laptop ...


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You can drag the window by holding the Alt key and dragging it with your mouse (from any point, not the title bar on the top). It's not a total solution but it would help you carry on. When you get into the display settings, if the settings indicate that you are already at the native resolution of your laptop, you should check on the Scale for menu and ...


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For sound, the basic keys are: XF86AudioNext XF86AudioPause XF86AudioPlay XF86AudioPrev XF86AudioLowerVolume XF86AudioRaiseVolume XF86AudioStop You can link them to you favorite music player, for example, setting XF86AudioNext to execute gmusicbrowser -cmd NextSong. The specific code will depend on the options allowed by your particular music player ...


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Open terminal ( Ctrl+Alt+T ) and type: sudo gedit /etc/default/grub You will find this line in the new opened window: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" Change it to : GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor" Save and close the window and type this in the terminal: sudo update-grub


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Ok, so it's been a while since I started having this issue and I asked this question here, but I just found what was causing it. Finally! The problem was that in the past I installed 'xboxdrv' in order to use my twin gamepad in games. It didn't work though and it soon turned out that I didn't need that driver anyway since Steam can map the controls all by ...



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