Hot answers tagged

31

Each of the issues described (and maybe even more) can be fixed by following the steps below. First make sure you can enter a TTY Press Ctrl+Alt+F1 If this brings you to a black screen with a login prompt, continue on. Otherwise, you will likely have to boot with a special kernel flag. Instructions are below. Now for the fix Log into your account ...


14

Graphics cards help with: CUDA/OpenCL style workloads (eg bitcoin mining) 3D rendering. You might be rendering stuff on demand. Most cards can help with video decoding but this applies to many IGPs too. Some cards have hardware to help with video encoding. The quality is usually a lot poorer and this is still under development. ffmpeg can use nvenc (...


12

As per this Ubuntu Community Help Wiki Page, Ubuntu 14.04+ is different: Ubuntu 14.04 and up The jockey-text command was removed with the release of Ubuntu 14.04. You can now use ubuntu-drivers to get the list of packages for each driver, and then install the packages using apt-get. For example: sudo ubuntu-drivers devices == /sys/devices/pci0000:00/0000:...


10

O.k. to fix this (I had the same troubles this morning) you have two ways: 1. The clean way proposed to me by the launchpad team per e-mail: To work around this issue, you may first switch to a text console by pressing Ctrl+Alt+F1, then stop your display manager using sudo systemctl stop <displaymanager>, where is lightdm, gdm, sddm, or whichever ...


9

Got this problem with 2 simultaneous PyCharms running. So closing them is not a reasonable solution for me. Using raus81's advice edited skype dash link: sudo gedit /usr/share/applications/skype.desktop change Exec=skype %U to Exec=env "QT_X11_NO_MITSHM=1" skype %U


8

It's a QT related problem, I fixed running skype with QT_X11_NO_MITSHM=1 Start from shell: QT_X11_NO_MITSHM=1 skype


7

Finally applying the Why is "GPU Process" causing such a high CPU usage with Google Chrome? recommandations is the better answer that I thought at first sight. With the latest version of google chrome (v 45.0.2524.99) along with a change of the AMD driver Trying to configure a HD 7470/8470 - Strange video refresh Title changed and instability of video ...


6

If the reason for bad looking fonts is disabled anti-aliasing, then there are few things you could try: In LibreOffice: Go to Tools in the top menu -> then Options. In the left treeview go to LibreOffice -> View (4th from top). Here are some settings for LibreOffice (like "use Anti-Aliasing"). If your whole system lacks of Anti-Aliasing (what I don't think ...


6

As AJefferiss suggested I executed a command: ipcs -mp I found a "pid" of last process and executed: ps aux | grep "pid" It was PyCharm, I was running 2 instances of this IDE. After I disabled one of them, Skype issue was resolved.


6

Windows and Linux are not comparable. "Windows compatible" tells you nothing about "Ubuntu compatible" and the other way round.


6

There was a problem, but it has now been resolved. The repository key has been corrected and the drivers can now be installed successfully. Historic answer Prior to approximately 2016-02-23 13:00 UTC there was a problem. Intel were aware of it, investigated it, and corrected it. The basics of the problem were that the key of the repository referred to ...


6

It does not affect your security any more as staying with that old version would have done. The rollback does not do anything special. To find out whether the specific update you rolled back or omitted contains severe security patches, look at the changelog of that version you rejected. Therefore visit http://changelogs.ubuntu.com/changelogs/pool/main/l/...


5

As you have quite new GPU hardware it might possibly be some kind of driver issue. While intel chips are very well supported, there is actually nothing to do right now. We may come to this later, but to sort things out - let us start with laptop 2 first. Install the latest stable NVIDIA driver and Optimus support : sudo add-apt-repository ppa:...


5

I found a bash script for imagemagick to do that by Fred Weinhaus. His scripts are available free of charge for non-commercial use, ONLY. Command line usage: USAGE: cartoon [-p pattern] [-n numlevels] [-m method] [-e edgeamount] [-b brightness] [-s saturation] infile outfile USAGE: cartoon [-h or -help] -p ... pattern ...... segmentation pattern (shape)...


5

For The display is blank & The display flickers I faced the same issue but now every thing works fine. There are two solutions to this: Use NVIDIA driver version 364 from the Graphics drivers PPA (Best Option) sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt update && sudo apt install nvidia-364 Use LightDM instead of GDM sudo ...


5

To use the AMD Graphics card, execute this command: DRI_PRIME=1 ./executable If you want to run a Steam game with AMD Graphics Card, you should set the Game Launch Options on Steam with this command: DRI_PRIME=1 %command% To test manually if this is working, you can execute this: glxinfo | grep "OpenGL renderer" This command will show your ...


5

I also installed Ubuntu 16.04, clean install on a new hd and everything worked fine until I switched to NVIDIA driver. After rebooting I couldn't get past the login screen. The solution that worked for me was to disable secure boot. While stuck in login loop, I switched to console Ctl+Alt+F1, rebooted and disabled secure boot in UEFI. Now everything works ...


5

No. It's because fglrx doesn't support Xorg 1.18, which is what comes with Ubuntu 16.04 (thanks Wilf). AMD isn't planning on upgrading it to work, and Canonical doesn't want to have to maintain a driver for the next five years by itself. If you have a supported card, try the AMD GPU-PRO driver beta. Otherwise, you have to downgrade to 15.10 or settle for ...


4

To solve your problem install the very latest current stable NVIDIA drivers 352 ! But first uninstall every NVIDIA related software you have had installed before. Remove the bumblebee packages as well - it will be replaced with nvidia-prime. Open a terminal and execute: sudo apt-get purge nvidia* bumblebee sudo reboot Then install the new NVIDIA ...


4

First you have to uninstall all NVIDIA drivers and repositories you have already installed before. When the GRUB boot menu appears - Highlight the Ubuntu menu entry and press the E key. Add the nouveau.modeset=0 parameter to the end of the linux line ... Then press F10 to boot. When the login screen appears - press Ctrl+Alt+F1. Enter your user name and ...


4

First create the Ubuntu installation media properly with Disks in Ubuntu. Open Disks - select Restore Disk Image from the menu on the top right. Choose the ISO file and the USB drive to write it to and start restoring. Alternatively you can burn the Ubuntu 15.10 ISO image to a DVD as well. Boot from the Ubuntu 15.10 installation media you created before. ...


4

I had a similar issue, and this worked for me: sudo apt-get install --reinstall xserver-xorg-video-intel xserver-xorg-core sudo dpkg-reconfigure xserver-xorg Followed by a reboot. Was having many irritating graphics crashes before, none since. It oddly didn't make Ubuntu recognise the device, but at least I'm not getting crashes now. Adapted from ...


4

Check graphics drivers which are in use (radeon/amdgpu should be listed): lspci -nnk | grep -i vga -A3 | grep 'in use' Note: If 'amdgpu' is listed, replace 'radeon' with 'amdgpu' in the instructions below! Open the following file: gksudo gedit /etc/default/grub Modify the following line by adding radeon.modeset=0: GRUB_CMDLINE_LINUX_DEFAULT="...


3

Yes if the server generates or, for instance, re-sizes images. Software that uses, or could use, the existing graphic card for such tasks, is not unheard of. Surely, this depends a lot on what kind of software, what kind of GPU, is the suitable driver available and things the like.


3

In order to get your nvidia GPU to work, you need to install "bumblebee", just like it is mentioned on the wiki: sudo apt-get install bumblebee bumblebee-nvidia primus linux-headers-generic However, your card is not supported by the default drivers, since it is too recent, and thus, you will need to take additional steps. First of all, you must install ...


3

On command line (Terminal), try writing xgamma -gamma 0.3 You should see a very noticeable difference. Experiment with different values. 1.0 is normal value. Setting a lower gamma will increase the contrast of bright values (decrease white washing), and setting a higher gamma will increase the contrast of dark values (but increase white washing).


3

Let me tell you this. I have tried even more than you have, I have even visited Linux forums and requeted for support, searched entire internet, asked dozens of people in IT and I never got it work...Same thing. I have NVIDIA GeForce GTX 970 graphic card and it looks like our card can't seem to be able to communicate well with Linux system. I have tried ...


3

First, lets get Ubuntu to a 'clean' state, without any nvidia drivers installed: sudo apt-get purge $(dpkg -l | awk '$2~/nvidia/ {print $2}') Next, let's remove the x-server error - follow this answer. You can install the latest NVIDIA drivers by adding their new PPA to your system. To do so: sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt-get ...


3

There is no way to fix it without installing proprietary drivers. They can be installed by running in terminal sudo apt-get install fglrx-updates


3

Phoronix has reported some issues with Skylake CPUs and Ubuntu. There are also workarounds available. Nevertheless, The simplest solution for the time being the author has found (and you are probably not going to like this) was to run Fedora instead. At least for the time being... Regarding i915 vs i915_bpo, I think "bpo" stands for "backported". It ...



Only top voted, non community-wiki answers of a minimum length are eligible