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  • How to improve battery life on Samsung 13.3” Series 7 Ultra (NP730U3E-S01AU)?

    - by beam022
    Recently I've bought a Series 7 Ultra Samsung ultrabook and decided to change the OS from originally installed Windows 8 to Ubuntu 14.04LTS. However, it's difficult not to notice great decrease in battery life: on pre-installed Windows 8 battery would last for about 6 hours while on Ubuntu it's almost empty after 2 hours of same kind of work (wi-fi, web, vlc, spotify, intellij idea). I'm not here to say that Ubuntu's battery performance is worse than Windows, but to ask for suggestions how to improve the situation (2 hours of work is pretty poor battery life). Can you recommend some sources, applications or tips/tricks that would improve battery life on my ultrabook? I really like the Ubuntu experience, but this makes my machine much less reliable. I suspect that graphic video card might be one of the issues here. Let me give you tech specs of the ultrabook: Processor: Intel® Core™ i5 Processor 3337U (1.80GHz, 3MB L3 Cache) Chipset: Intel HM76 Graphic: AMD Radeon™ HD 8570M Graphics with 1GB gDDR3 Graphic Memory (PowerExpress) and Intel(R) HD Graphics 4000 Display: 13.3" SuperBright+ 350nit FHD LED Display (1920 x 1080), Anti-Reflective Memory: 10GB DDR3 System Memory at 1,600MHz Hard-drive: 128GB Solid-state Drive More informations here, on the official page. If it's helpful to provide additional info, I'm happy to do it, just let me know what you need. Thank you.

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  • Fan always spinning on Maverick

    - by jb
    I use Dell Studio 1555, after update to maverick my fan started spinning full speed allways. I use xserver-xorg-video-ati/radeon drivers because fglrx messes with my desktop resolution when connecting external screen. Processor is mostly idle. U use some desktop effects. On the same configuration on Lucid my fan worked slower. It eats lots of battery time :( Bug filed: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/675156 Any insights how to solve/debug it or work around it?

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  • 13.10 hangs on waking from suspend except when suspended from console

    - by Pavel
    I know waking from suspend is an issue, but this looks like a separate bug. When I suspend 13.10 on HP Pavillion dv6 (AMD 6770M/fglrx 13.10.10) from x, it suspends normally but freezes when waking. I get a black screen with a frozen cursor. But when I suspend from console with sudo pm-suspend, it wakes normally, and I can then get back my x with ctrl-alt-f7. If I suspend by closing lid under x, also freezes when waking up. If I suspend by closing lid under console, it wakes up into the x (?) login, then into a clean session.

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  • ACPI _OSC control

    - by nmc
    I've noticed an error from dmesg output that ubuntu canot enable ASPM: [ 0.192722] pci0000:00: ACPI _OSC support notification failed, disabling PCIe ASPM [ 0.192728] pci0000:00: Unable to request _OSC control (_OSC support mask: 0x08) While I know that this is not a bug, I'd like to ask if there is a way to correct it and enable ASPM, the reason being that it should increase battery life (powertop shows that PCIe is always 100% on). Edit: I am running on an ASUS eee pc 1015px with the latest bios version (1401)

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  • Why can't I refresh the list of packages?

    - by Elysium
    This might be a duplicate, but I can't find a solution in other posts. Whenever I try to update I get this message: ERROR###ERROR###ERROR###ERROR###ERROR###ERROR###ERROR E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/listspackages.medibuntu.org_dists_quantal_free_i18n_Translation-en, E:The package lists or status file could not be parsed or opened. I have tried runnig this in the terminal: sudo rm /var/lib/apt/lists/* -vf sudo apt-get update It doesn't work at all. I cant even open the software sources and "sudo apt-get check" gives me this message: Reading package lists... Error! E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists/packages.medibuntu.org_dists_quantal_free_i18n_Translation-en E: The package lists or status file could not be parsed or opened. UPDATE: solution for me was to remove the medibuntu-keyring through synaptic manager and removed mediubuntu from the software sources too manually. This seems to have solved the problem. The update manager doesnt give me any error messages anymore.

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  • Ubuntu Software Center not recognising my network connection

    - by Chethan S.
    I have installed Oneiric Beta on my laptop. As my Mobile Broadband refused to connect to Internet through network manager I'm now using wvdial to connect. Hence the network manager shows I'm not connected to any networks. When I try to install software from Ubuntu Software Center the 'Install' option remains disabled and under reviews section it says no network connection! As a workaround I kept installing applications from terminal which works fine. Therefore, my question is how to make Software Center recognize that I am connected to Internet?

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  • How can I disable usb-autosuspend for a specific device?

    - by black_puppydog
    This is related to the issue discussed in this question. Summary: the mouse freezes when operating on battery since it is autosuspended after a certain time and needs more time to wake up. Disabling usb-autosuspend for the mouse's receiver in powertop is a temporary solution but does not survive a reboot. How can I permanently disable the usb autosuspend for only one specific device? A solution that does not involve installing additional packages is preferred (after all, I want to disable something) but not required. Removing powertop (which seems to be a solution for some) is not what I want - I like poertop... And installing laptop-mode-tools to disable usb_autosuspend alltogether is not what I want, either, thus the new question. Also: will this affect the battery of my notebook? The logitech unifying receiver for the mouse stays connected all the time, so if that prevents the autosuspend from happening for all devices that would probably be bad.

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  • I cannot update my version 12-04. After installation of 12.04 I get only error reports when I try to update

    - by cees groenewoud
    received report: from Google translate : Could not initialize the package information There was an insoluble problem occurred while initializing the package information. Please this error in the package "update-manager" to report and add the following message to: 'E: Encountered a section with no Package: header E: Problem with Merge List / var/lib/apt/lists/nl.archive.ubuntu.com_ubuntu_dists_precise_main_i18n_Translation-en, E: The package lists or status file could not decompose or not be opened. " Kon de pakketinformatie niet initialiseren Er heeft zich een onoplosbaar probleem voorgedaan bij het initialiseren van de pakketinformatie. Gelieve deze fout in het pakket ‘update-manager’ te rapporteren en voeg de volgende foutmelding toe: 'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/nl.archive.ubuntu.com_ubuntu_dists_precise_main_i18n_Translation-en, E:De pakketlijsten of het statusbestand konden of niet ontleed, of niet geopend worden.'

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  • Unmounted disk still spins up regularly

    - by Erik Johansson
    I just added a disk, with partitions but none of them are mounted. The disk will still spin up every now and then. it goes like this: ### disk spins up hdparm -Y /dev/sdb;date /dev/sdb: issuing sleep command 9 feb 2011 23.37.08 CET ### disk spins up hdparm -Y /dev/sdb;date /dev/sdb: issuing sleep command 9 feb 2011 23.46.12 CET Also it always spins up when I shut down the computer. Any tips are welcome, e.g. how can I figure out which process is accessing the disk, are there any daemons doing this? I know it isn't a cron job.

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  • Why does waking from hibernate take nearly ten minutes on 11.10?

    - by Shane O'Connor
    Im running 11.10 64bit on a Dell XPS 15 L502x laptop. It uses an i5 proc and has 16Gb ram. Whenever I close the lid on the laptop I have it set to hibernate as I want to continue whatever I was previously running. Generally that is simple text editing, so my mem usage would normally be only a Gb or 2. When I open the lid and it resumes from Hibernation, it takes up to ten minutes to do so. Extremely frustrating. Is there anything I can do to make hibernate function properly. On windows it used to wake from Hibernation in less than 30 seconds. Its really frustrating and souring my experience with Ubuntu. Any help would be gratefully appreciated! Thanks guys/gals! S

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  • Software centre and Evolution think I am offline using WICD to make wireless connection

    - by Alex
    I upgraded to 11.10 yesterday. I use WICD to make the wireless connection because I have never managed to get network manager to make a wireless connection on any computer I have installed it on. But since 11.10 both Evolution and software centre are convinced I am offline even though I have a functional connection (I am using wifi now and both are reporting me offline, which I clearly am not). I am using an MSI WIND clone Advent 4211 B netbook. Network manager has never worked on this computer for wifi. WICD can make connection about 30% time (often returns BAD PASSWORD, first few attempts). XP of course works fine to make wifi connection. I have a I am happy to supply more information I just do not know what information might help. I have reported a bug against evolution

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  • laptop-mode-tools and harddrive spinoff

    - by sagarchalise
    So I wanted to extend my laptop battery life. After googleing a lot I found many tips and tricks. Some even in this site as well. Then I found this package in synaptic as well laptop-mode-tools. Now I am not well aware of what harddrive spinoffs are, so I have a dilemma of installing this package as it seems to remove acpi support as well. So my question is, how reliable is this package in battery life extension and what configurations should I use with it ? Also I stumbled upon some posts saying spinoffs may kill the harddrive as well. So can anyone clearify with some configuration tips especially for laptop-mode-tools. Thanks in advance

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  • My computer will no longer suspend or shut off when I close the lid

    - by dave
    This is somewhat annoying. I have an old laptop and the screen on it is shot, so now I have an old monitor hooked up and it works fine. Before the upgrade I had it set so that when i closed the lid on the laptop everything would shutdown or suspend, when I lift the lid, everything would come back. Now, however, when i close the lid nothing happens, when i open the lid the screen flashes black and comes back. I have it set so that it should suspend when i close the lid. It's confusing...

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  • tile a window with a hotkey on Ubuntu

    - by Eli Bendersky
    On Windows I use an AutoHotKey script to tile the active window to the left half of the screen, the right half, or a few other options. Does Ubuntu/Gnome have a program that would allow me to do that? If not, do you have an idea how to create this programmatically, or at least can point me to a resource?

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  • What is the best graphical terminal/console for Linux?

    - by bgy
    Well, I'm often tired of the basic functionalities of terminal provided as is when installing a new distribution. What is the best console in a graphical mode? For now, all I want to is: Tabs management Easy copy/paste (^C/^V support) UTF-8 support Should be available for both KDE/Gnome environnement Please be argumentative, don't answer with 'my favorite is' only. Try to tell me why and which features it offers.

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  • How do I customize Alt+Tab behaviour?

    - by David Oneill
    GOAL: I would like to make the little menu that pops up when I press Alt+Tab to gain the ability to jump to a particular window by pointing my mouse at one of the icons. This is the behaviour that my Mac OSX laptop has. The Situation I use Xfce, with the default windows manager (XFwm). I currently have Ubuntu 10.04 and 11.10, although I plan on updating both to XUbuntu 12.04 once the dust settles (probably mid-may?). (Clarification, for my current setup, I installed Ubuntu, then added xfce manually after the fact). So, a series of related questions. How do I set this up? (If this is not possible, please answer the following questions to help me learn) Is the Alt+Tab a function of the desktop environment, or the windows manager, or some other piece? (IE if I switch to using some other tool, could I potentially get this) Are there any customizations that are available either from settings or add-on applications that would allow me to change the behaviour of that menu?

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  • USB blocks suspend on a Gigabyte GA-890GPA-UD3H with ATI SB700/SB800

    - by poolie
    Following on from question 12397, I'd still like to get suspend working on my Phenom II X6 / GA-890GPA desktop machine running current Maverick. When I run pmi action suspend the machine doesn't crash, but it also doesn't suspend. The kernel logs show: PM: Syncing filesystems ... done. PM: Preparing system for mem sleep Freezing user space processes ... (elapsed 0.02 seconds) done. Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done. PM: Entering mem sleep Suspending console(s) (use no_console_suspend to debug) pm_op(): usb_dev_suspend+0x0/0x20 returns -2 PM: Device usb8 failed to suspend async: error -2 PM: Some devices failed to suspend PM: resume of devices complete after 0.430 msecs PM: resume devices took 0.000 seconds PM: Finishing wakeup. Restarting tasks ... done. PM: Syncing filesystems ... I've tried disconnecting all the USB devices, and then connecting in to run pmi over ssh, and I get the same failure. With everything unplugged, I see the following usb devices: Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub and lspci shows the physical devices are: 00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller 00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller 00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller 00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller 00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 Controller 00:16.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller 00:16.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller 02:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03) Booting with no_console_suspend makes no difference.

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  • Ubuntu Launcher doesn't launch [closed]

    - by La Chamelle
    I use Ubuntu 11.04 and Gnome 2.32.1. I want to create a new launcher for Sql Developer on the desktop with the following value : Name : SqlDeveloper Command : /bin/sh /opt/sqldeveloper/sqldeveloper.sh Icon : A icon in the directory of sql developer When I click or double-click on the launcher nothing happens. $ ls -l /opt/sqldeveloper/sqldeveloper.sh -rwxr-xr-x /opt/sqldeveloper/sqldeveloper.sh What should I do ?

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  • How to prevent my screen from either dimming or the screen-lock starting when watching YouTube?

    - by Steven Roose
    My screen brightness used to dim after a few seconds to preserve battery. This is default in Ubuntu 12.04. However when watching video it should not dim. This works correctly when I watch videos using native applications like VLC. With in-browser video, however, the screen is not prevented from dimming. This is very annoying as you have to move your cursor every 10 seconds or so. I used to use Mac OSX where I had the same dimming settings and Flash videos were taken into account correctly. Anyone an idea how you can make YouTube prevent your screen from dimming?

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  • Disabling Bluetooth crashes 3G: can I consider this a bug?

    - by workflow
    I'm on an Acer TravelMate 8372G here runnning Ubuntu 11.10 64bit and I get the following weird behaviour: As soon as I turn off bluetoooth, the built-in 3G connection disconnects and Network Manager is unable to reconnect, leaving the following track in syslog: NetworkManager[1205]: <warn> GSM modem enable failed: (32) Unknown error The only way I'm able to reconnect 3G is by going all the way through rfkill unblock bluetooth rfkill block wwan rfkill unblock wwan sudo service network-manager restart My question to you guys: should I file a bug, or is there any any logical connection I'm missing that makes this a feature? = thanks! workflow

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  • Has the Ubuntu heating problem for Sony Vaio users been solved?

    - by nischayn22
    I use Sony Vaio VPCEA23en with graphics card ATI Radeon HD 5145 and have been using Ubuntu 11.10 and recently upgraded to 12.04 beta, however the problem of overheating (60-70) still persists. I have installed the graphics driver properly. Are there some features of Ubuntu that cause this problem? I would have no problem uninstalling them; Or will using a lighter version of Ubuntu (lubuntu) solve this problem? Right now I am using Win7 and would like to switch to Ubuntu ASAP.

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  • Primary/secondary ethernet interfaces via NetworkManager in Ubuntu 9.10

    - by Josh
    I have an Ubuntu 9.10 machine with three ethernet interfaces, eth0, eth1 and eth2. eth2 is connected to a private network. eth0 and eth2 are connected to two different LANs. Either one will provide access to the internet. All three networks have DHCP servers. Using Ubuntu's the default settings (And Gnome), when I boot up all the interfaces are active and my system gets three IP addresses. However any attempt to access the internet results in connection timeouts and other weirdness. I suspect that traffic is going out on one NIC (like eth0) and coming back in on another (like eth1). I'm not sure what's going on. The only way I can access the internet at the moment is to bring two of the devices down with ifdown. How can I configure eth0 as my primary interface so all trafic goes out by default on that interface, while keeping the other two active? Also, I want to make sure Avahi broadcasts properly on all three IPs so that the computers on the LAN of eth1 can still connect to myHostname.local... EDIT: Here's my routing table: Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 172.16.151.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2 172.16.30.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 10.1.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 0.0.0.0 172.16.30.2 0.0.0.0 UG 0 0 0 eth0 0.0.0.0 10.1.0.1 0.0.0.0 UG 0 0 0 eth1 I want the 172.16.30.2 network to be the primary one and the 10.1.0.0 network to be the secondary one. EDIT2: My nameservers are also incorrect. It seems like Ubuntu is bringing the networks up in order, eth0, then 1, then 2, and the DHCP information from eth1 is overriding eth0, and eth2 is overriding eth1. How can I reverse this so the DHCP information from eth0 is the "master"? EDIT3: This seems to be an issue with Gnome's NetworkManager.

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  • How do I detect when my system wakes up from suspend via DBus or similar in a python app?

    - by con-f-use
    In a background Python script I need to detect, when the system just woke up from suspend. What is a good way that does not rely on a root script but rather on python modules such as DBus? I'm new to dbus so I could really use some example code. From what I read it's related to org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Resuming Can anyone help me out with some code that connects the resuming signal to callback?

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