I have seen , but that question seems to be obsolete with the 11.10 version.  Last week, I upgraded from 11.04 to 11.10. I am usually using gnome desktop clasic (without effects,also called the fail-safe), because my PC is very bad. Since the upgrade, everything is so slow. I also noticed that the temperature of the graphical chip* went from 30-40 C to 60 C, so my guess that the ubuntu 11.10 demands very powerful GPU.  So, what can be done to improve the performances of ubuntu 11.10?    Logging in using fail safe option is one thing, but it is not enough.  *The temperature of the GPU can be seen from the nvidia-settings under the thermal settings.
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What are your tips for improving overall system performance on ubuntu? Inspired by this  I realized that some default settings may be rather conservative on Ubuntu and that it's possible to tweak it with little or no risk if you wish to make it faster.  This is not meant to be application specific (e.g. make firefox load pages faster), but system wide.  Preferably 1 tip per answer, with enough detail for people to implement it.  A couple of mine would be:   Install  (via Software Center or sudo apt-get install preload); Change  value - "which controls the degree to which the kernel prefers to swap when it tries to free memory";   What are yours?  PS: Since this is not intended to have a unique answer but rather, several useful tips, I'm making this community wiki out-of-the-box.
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During the upgrade, my computer shut down.  After starting it I see a black screen with [OK] sentences with finished tasks after them. The last one is:  [OK] Started GNOME display Manager.       Dispatcher Service...ed database.s.pp link was shut down...   Do I need to format my computer? If not, what else can I do?
122798
I am using the  ppa. I got an update dialogue today which stated that I can update my nvidia driver to 367.18 (~gpu16.04.6). I started the update just like every time, but it failed with  Failed to get unit file state for var-lib-snapd-lib-gl.mount  After rebooting, my graphics driver was broken and I was forced to go into recovery mode.  As usually when my Nvidia driver breaks, I just uninstall it with  sudo apt purge nvidia* to reinstall it clean afterwards.   Doing this in recovery mode uninstalled all except the nvidia-opencl-icd-367 package which failed with the error above.   Trying to manually uninstall this package ends with these errors:       Update @20160605 - Solution:  Following Videonauth's answer below solves the issue. Please go through all the steps and make sure to reboot after removing everything of NVIDIA via sudo apt purge nvidia* succeeded without issues and after reinstalling the driver via sudo apt install nvidia-367.  This shall get your driver working again.   If this does not help, try to manually remove all old xorg configs sudo rm /etc/X11/xorg.conf* &amp;&amp; sudo rm /etc/X11/xorg.conf and reinstall the driver again sudo apt install nvidia-367 --reinstall.  If this still does not let you log back in (Typical error: Logins screen --> password has been entered, enter pressed --> goes back to login screen) try completely removing your Nvidia driver again from by switching into text console from the logscreen with Ctrl+Alt+F1, login with you account name and password, donwload the appropriate driver for your graphics card from  within console, stop lightdm:  sudo service lightdm  Install Nvidia's binary driver using sudo ./NVIDIA-VERSION...  and reboot system:  sudo reboot now  System:  Ubuntu 16.04 64bit  Linux 4.4.0-22
102827
I have an Asus UL30JT. It has Nvidia Optimus technology which I am not really interested in. I currently rarely use this laptop with it being connected to power. And I want to be able to play video at high res, play games and do some OpenCL coding.  In the BIOS I switched it to NVIDIA only (non windows 7). Previously, this worked just fine, using the nvidia driver.  After upgrading everything was broken. I have added nomodeset and blacklist.nouveau=1 as kernel options. The nvidia drivers install without error. However they are not found/used.  jockey-text -l kmod:nvidia_310_updates - nvidia_310_updates (Proprietary, Enabled, Not in use) kmod:nvidia_304_updates - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use) kmod:nvidia_313_updates - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use) kmod:nvidia_310 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use) kmod:nvidia_304 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)   Trying to load the module manually fails as well.  sudo modprobe nvidia FATAL: Module nvidia not found.   Xorg.0.log show the following:  [    12.028] Loading extension GLX [    12.028] (II) LoadModule: "nvidia" [    12.037] (WW) Warning, couldn't open module nvidia [    12.037] (II) UnloadModule: "nvidia" [    12.037] (II) Unloading nvidia [    12.037] (EE) Failed to load module "nvidia" (module does not exist, 0) [    12.037] (==) Matched nvidia as autoconfigured driver 0 [    12.037] (==) Matched nouveau as autoconfigured driver 1 [    12.037] (==) Matched vesa as autoconfigured driver 2 [    12.037] (==) Matched modesetting as autoconfigured driver 3 [    12.038] (==) Matched fbdev as autoconfigured driver 4 [    12.038] (==) Assigned the driver to the xf86ConfigLayout [    12.038] (II) LoadModule: "nvidia" [    12.038] (WW) Warning, couldn't open module nvidia [    12.038] (II) UnloadModule: "nvidia" [    12.038] (II) Unloading nvidia [    12.038] (EE) Failed to load module "nvidia" (module does not exist, 0) [    12.038] (II) LoadModule: "nouveau" [    12.039] (WW) Warning, couldn't open module nouveau   I have installed the kernel headers, of the correct kernel. I verified that the kernel options are in the grub configuration. I have purged all nvidia packages and tried to reinstall (multiple times...)  Currently I am at a loss. I have checked the following question:  But nothing there worked for me.
21063
I was installing ubuntu-Gnome 16.04 on my Asus ROG GL522VW laptop with an nvidia GTX 960m graphics card, and stumbled upon a problem.  After installation, I don't even get to the login screen. Instead my screen just freezes. I had this problem before, and got my answer in this post:   So I booted with nouveau.modeset=0, and everything boots just fine. But after I use additional drivers to install the NVIDIA binary driver - version 361.42 from nvidia-361 (proprietary, tested), I only get a black screen when I try to boot regardless of whether nouveau.modeset=0 is set or not.  While the screen is black, when I try to access the command line with ctrl + alt + f1 all I get is this: A start job is running for Hold until boot process finishes up (Xmin Xs/no limit) and no matter how much I will wait, it doesn't end and I have to reboot.  I followed the instructions in this post:   When I boot after reinstalling everything and choosing lightdm - it basically works but my login screen looks like a unity login screen, and when I insert my credentials it shows me a very bugged screen with all kinds of broken images with some of the things I had on my last boot, and after a few seconds my screen flashes on and off and it boots into my normal desktop, but still keeps spitting out system problem detected with only the option to close or report.  Also tried to install nvidia-355 and all kinds of versions, with no luck.  I wouldn't mind working with nouveau.modeset=0, but as far as I understand this disables my graphics card and doesn't utilize all of it's potential?  Any help or insight will be greatly appreciated. Sorry for the long post and if I should include more information please tell me what else I should include.  A huge thanks up front!  Edit: Reposted this question again and didn't know I can just edit the question to get it back up.  Edit2: Bumping again in a last effort to solve this issue  Please let me know if it is lacking information.
40543
I have a fast machine - let's say Intel Core i7, SSD drive, Nvidia GTX 560 card.  I don't need an eye-candy system. I still need to perform it properly, that meaning have latest drivers, use my hardware properly.   I think it's strange to say:      Well, this PC is so fast, let's install GNOME3 on it, it will handle,   so whatever.   Why wouldn't I install Lubuntu on it, just as I use it on my net-book? In other words is Lubuntu a good choice or not? I mean, does Lubuntu have any disadvantages to it when it comes to new hardware support, or whatever?   Note: This may look like an off-topic question leading only to a discussion, but bear with me for a second here. I don't mean to discuss which of the two is better or whatever, I'd rather hear facts.
42636
Is there any tool that helps to determine the weakest link of my current laptop hardware specification? Any online guide to help me choose nice balanced configuration for the new laptop?    I need to find the answers:  a) which component should be invested to increase overall performance the most? CPU? GPU? RAM?  b) which component may decrease overall performance and work as a bottleneck for the specific configuration?    The question is general and regards both to validating the current hardware usage (and its possible bottlenecks) and estimating the performance (and avoiding possible issues) of specs I'm going to choose and buy.    P.S. For the specific laptop I need to replace, the following software will be in use:    Windows antivirus, firewall, dropbox service running in the background mail app + web browser with a dozen or so tabs open from time to time: libreoffice apps, movies, games (both online and installed).
50632
Ubuntu can't be installed on my system because of what the title says. This is because support Intel HD Graphics 530 was only just added in Linux kernel 4.3 and all versions of Ubuntu only have kernel versions up to 4.2 as of 15.10. My computer's processor is the new Intel Skylake 6600K if you need to know, everything else is generic. It has a UEFI BIOS motherboard. Help?
107218
I used the built-in upgrader to upgrade to 19.04 today, and I'm now stuck in a login loop. I have tried many solutions from forums, but nothing has worked. Is there something I'm missing or anything else I should try?   From what I've seen, I don't think that there is an Xauthority file on my computer. I'm on a Dell XPS 15 with a GTX 1050Ti Max-Q GPU, and a Core i7 processor. I also have a Windows dual boot, and while Ubuntu's my main OS, luckily almost everything is on GitHub, Google Drive or my Windows partition.   Results of ubuntu-drivers devices :   emil@emil-XPS-15-9570:~$ ubuntu-drivers devices == /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 == modalias : pci:v000010DEd00001C8Csv00001028sd0000087Cbc03sc02i00 vendor   : NVIDIA Corporation model    : GP107M [GeForce GTX 1050 Ti Mobile] driver   : nvidia-driver-418 - distro non-free recommended driver   : nvidia-driver-415 - third-party free driver   : nvidia-driver-396 - third-party free driver   : nvidia-driver-390 - distro non-free driver   : xserver-xorg-video-nouveau - distro free builtin   Results of sudo systemctl start graphical.target :  Failed to start graphical-target.service: Unit graphical-target.service not found.
44019
I have an acer laptop with these GPUs: - GPU0: Intel HD Graphics 4000 (M) (obviously integrated) - GPU1: NVIDIA GeForce GT 710M  I uninstalled all nvidia-drivers because I was experiencing a lot of bugs and I read here and there that they are not supposed to work with Optimus without either bumblebee or nvidia-prime.  As far as I understand, nvidia-prime would allow me to have the NVidia GPU always on. And to choose between that or always off (i.e. always use Intel)  So now I installed nvidia-prime with  sudo apt-get install nvidia-prime   What am I supposed to do now?  I thought nvidia-prime provided a graphical interface which would allow me to choose which graphic card to use, and even to install the needed nvidia drivers.  By typing "nvidia" in the dash, nothing shows up. From a terminal, the only command available starting with "nvidia" is "nvidia-detect" which just prints "none".  So, I installed nvidia-prime, how do I use it?
9626
How can I safely upgrade an Ubuntu installation from one release to another? What should I do before upgrading to ensure it goes smoothly, and is there any clean-up I need to do afterwards?  In particular, do I need to do anything special if I am using packages from PPAs, if I have a graphics card that needs drivers, or if I'm running a custom Linux kernel?  This is a general question , but as example we take Ubuntu 12.04 and Ubuntu 12.10
72126
I had a hard time installing Nvidia drivers in a fresh install of Ubuntu 20.04.  Installing via sudo apt install nvidia-driver-430 resulted in a list of 542 packages to install.  I ended up spending a bit of manual effort to get the Nvidia-provided driver installed without nearly so many dependencies (only had to install gcc and make).  Is this massive number of dependencies normal for Ubuntu Server?  I did a very vanilla install without the GUI.  Reddit suggested I ask here, as their opinion is that I should just install from the default repos, but I felt that so many packages was absurd just to install a driver.  Edit for clarity: installing the nvidia-driver-430 package appears to install the entire Gnome shell, which I feel is unnecessary on a server.
45900
I have installed Ubuntu on, but now I am trying to install NVIDIA CUDA Toolkit for the GPU. When I install it, it says that there is no driver found, so I have tried to install the driver, but I don't know why after installation, the system not coming up. Maybe it is because of the wrong version of the driver.   When I tried to detect the driver version using sudo lshw -C display , it showed this information:    But here it doesn't say that what is the product name of the driver, and also when I go Software &amp; Updates -> Additional Drivers, then it says NVIDIA Corporation: Unknown.    What should I do?
1082
My laptop diagnostic shows several pre-fails and has other issues so I am urgently shopping for a new laptop, my second using Ubuntu. I need a laptop with good graphics capabilities and have come across a couple with the Nvidia GeForce 840M graphics card. In other words, I do not have a problem now and am hoping to avoid one.  My research on Ask Ubuntu and elsewhere shows that there have been some bugs with Ubuntu 14.04 and Nvidia drivers (not just for the 840M driver) but that fixes were made or a least suggested. But I have seen nothing definitive, e.g. the Ubuntu Certification for laptops is barely starting with 14.04.  I am about to spend a 1000 dollars and would love a little more assurance before I proceed -- my understanding is that a Live CD cannot perform a full simulation. Are there easy-to-recognize concrete factors which make compatibility (more) predictable, such as specific models of computer and their processors?  I am a considering a  with an Intel i5 4200M  and an  with an Intel i7 4700HQ. Both use an Nvidia 840M graphics card.
21046
I run distributed computing projects, which typically want to use 100% of the CPU.  How do I limit the CPU usage in terms of temperature instead of percent usage?  Also, what is the maximum safe temperature to keep an Intel i5 running 24/7?  (With no CPU limit FahCore_a4 causes this machine to run at 82 degrees Celsius.)
95574
I'm running a passively cooled HD Radeon 6870 in my PC. While using 3D Acceleration, the temperature climbs up to 95 degrees Celsius according to SpeedFan. It seems a bit hot, but on the other hand I've seen other GPUs being specified to run up to 120 Degrees Celsius. The system is very stable, but Battlefield 3 crashes every few hours or so. On the other hand it might be the game's fault and not related to the GPU temperature at all.   Does anyone know where I can find some manufacturer specs on the maximum allowed temperature for this GPU?  Thanks,  Adrian
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Having found a lot of different questions on Ask Ubuntu regarding NVIDIA graphics drivers installation generating various issues and problems on Ubuntu systems - I do want to know:    What do Ubuntu users have to care about when installing the NVIDIA graphics drivers?    Explanation:  Being aware that this topic already has many good questions and answers it actually always stays up-to-date. One example : Many new notebooks come with hybrid graphics and Optimus support so they depend on proprietary NVIDIA drivers being installed to function properly but most of all existing posts point to  which doesn't provide the drivers anymore since ubuntu  was introduced, so many old answers are mostly obsolete or wrong.