I have installed Ubuntu 12.04 on my desktop. I have got NVIDIA 8400GS which is giving me a lot of problems. Ubuntu does not take the drivers automatically and I'm forced to work in 800 x 600. I tried to install additional drivers but it did not do anything rather it gave me an error after installation and I had to reinstall the system.  Now I'm trying to install the drivers manually, but when I go to Console mode and turning off the graphics via Ctrl+Alt+F1, the screen remains black and whatever I type, nothing happens.  How can I fix it?
9128
After booting to the GUI in 12.04, I attempt to move to the virtual terminal (or shell, or tty) via Ctrl-Alt-F1 (F1 through F6), and the screen remains blank. I have tried all 6 tty instances and the results are the same. Ctrl-alt-F7 brings me back to the GUI without a problem. Any thoughts?
82697
Recently installed a clean version of Ubuntu 14.10 on my system. Previous to that, I'd been running Windows 7 with no problems.   My system has two screens, one of which is a LG Electronics 24EN43 which is hooked up to a GeForce GTX 650 via HDMI. This is the default screen. The second screen is a DELL 2009W connected to a GeForce 210 via VGA. My problem is that screen 2 does not seem to be behaving properly.   I can move my cursor right to the second screen, and my cursor becomes a black X with a white border. I can then move my cursor back left onto the first screen. I cannot move any windows to the second screen, and I cannot open any programs or terminals on the second screen. The second screen has a black background.   I am currently using the NVIDA X Server Settings utility, and under the 'Additional Drivers' section of Software &amp; Updates, I am using the NVIDIA binary driver - version 331.38 from nvidia331  Here is a haste-bin of my configuration file for the XServers.   Here's some other things I have noticed:   If under the Additional Drivers, I use 'X.Org X server - Nouveau display driver from xserver-xorg-video-noveau (open source). Then the second screen does work, it has Unity, background, and works like it should. However, the cursor on screen 1 has an annoying flicker, the computer will randomly freeze and crash, and it is really bad at watching videos (you see bars going down the video as it slowly refreshes at 0.5 frames per second)   If any additional information is required, I am happy to provide it. Many thanks
45308
I recently installed Ubuntu 11.10 on my Mac Book Pro 7,1. I installed the NVIDIA driver (285). The brightness keys are working (F1 and F2) and I get the box showing the brightness but it does nothing. I can change the brightness in the NVIDIA X Server Settings application. How can I get the brightness working without uninstalling the driver? Thanks in advance.
44769
I've recently updated to Ubuntu 15.04 and after installing the latest nvidia drivers (346.59) which worked on ubuntu 14.10 seems to have caused some trouble on boot.  All I get is the following when booting:   A purple screen for about a second and then  [0.514409] ACPI PPC Probe failed. Starting version 219  A black screen with a message of my monitor saying : No Signal detected.   I am using a GTX 970.
2360
I tried to install an nvidia driver and there was an error saying I must not be in an X terminal when doing so. So I did a Ctrl+Alt+F1.  The resulting terminal did not allow the nvidia driver to be installed and showed the same error message. How do I revert back to the Unity GUI?
57855
I've been using Ubuntu(12.10) for a long time, and recently, my Ubuntu went through yet another update.  The whole update prompt showed up, following by a password prompt, and finally the good ol' progress bar...  Everything went well, and later on, I shut down my computer.  The next day, I turned my PC on, went to the login screen. I went ahead, and logged in, but after that, all I could see was a black screen, and my cursor!  I checked the forums, and got various tips, none of which worked...  Now I'm stuck with an Ubuntu installation that's completely useless.  One more thing:  I even tried logging in through Guest, but same problem! :\  My Computer Specs: Motherboard: Intel DG41WV Processor: Intel Core 2 Quad Q6600 @ 2.40GHz Graphics: Intel G41 Express Chipset RAM: Dual Channel, DDR3 2*2GB (4096 MBytes) HDD: Seagate 500GB SATA   ---- DETAILED INFO ----  To be a little more precise about my problem, after I log in, I can see a black screen and my cursor. Plus, importantly, I was able to see a login screen, hence I'm sure Ubuntu is rendering properly, and also pretty sure that there's no problem with the drivers (Otherwise I shouldn't even get a login screen, right?).  Anywho, another (probably) important thing is that, after logging in, I can hit Ctrl+Alt+1 and get up a recovery console.  The only thing that doesn't load is my actual GUI desktop  Then, I ran unity from the recovery console, it went through a few commands, got stuck at OpenGL for a few seconds, then zoomed throught many more lines of code, and ended up with this:  ERROR 2012-01-03 20.51.23 unity.launcher.Icon TrashLauncherIcon.cpp:62 Could not create file monitor for trash url: Operation not supported  *** glibc detected *** compiz: malloc(): memory corruption: 0x09c861d6 ***   After that. back at Ctrl+Alt+F7: Desktop Background + Cursor  So back to the terminal again, I had to hit Ctrl+C to get back again.  now, I typed unity again, and this was the output:  WARNING: no DISPLAY variable set, setting it to :D compiz (core) - Info: Loading plugin: core compiz (core) - Info: Starting plugin: core unity-panel-service: no process found   so now I did a sudo service lightdm restart :  X10: fatal IO error 4 (Interrupted system call) on X server ":0" after 131 requests (130 known processed) with 0 events remaining. lightdm stop/waiting lightdm start/running, process 2852   Im back at the login screen, and I login again, now Im back to black screen (Yes, I lost the Desktop Background as well)  So, once again, I try unity (same response as last time):  WARNING: no DISPLAY variable set, setting it to :D compiz (core) - Info: Loading plugin: core compiz (core) - Info: Starting plugin: core unity-panel-service: no process found   And still a black screen! :\
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.
9040
I am buing assamble self PC for playing games.  I am wondering, all the drivers, which are most likely for Windows, can i just use them on Ubuntu?  So if i understand you right, it will automaticaly detect the drivers, no need for installs ? or it find custom drivers for ubuntu.  This is the setup, will there be any problem with it?
30137
The NVIDIA graphics driver on this PC is several versions out of date, so I went to upgrade it due to an unrelated issue. I went to the NVIDIA website, downloaded the 64-bit Windows 10 driver for the GT 720 GPU. I ran the installation as you normally would only to be met with the error "NVIDIA Installer Failed", and it told me the "Graphics Driver" failed to install.   Now I only have one usable monitor, the other is not detected, yet it turns on briefly as Windows initially loads the desktop.  What I Have Tried  Clean Installation  This is the first thing I tried, I restarted the computer, waited a while, and then I ran the NVIDIA driver installer, I selected "Custom Install", and then I ticked the "Clean Install" checkbox. This failed in the same way as before. Note, I also tried "Run[ning the updater] As Administrator".  Windows Update  I opened Windows Update to check for updates, since this can often fix failed driver installs. It said there was a NVIDIA driver update available, so began the update process. This failed with the error "0x80070003". I tried again, it failed again.  Manual Driver Install  From device manager, I right clicked on the GPU, and clicked "Update Driver Software", I opted to browse for driver files, with "Check subfolders" checked, and navigated to C:\NVIDIA\DisplayDriver\368.39\ and clicked "OK". This failed with "Code 28".  Manual Driver Install (Automatic)  Same as before, except I let Windows find the driver online automatically, I presume it found the same files I had already downloaded, and downloaded them again. This failed.  I am still stuck with one working monitor, reduced graphical performance, and am unable to install the NVIDIA driver.  This is my work PC, so I don't have a huge amount of time to reinstall Windows, so I'd rather not do that, as I have various customisations in place, and lots of programs installed. It'd take a long time for me to do all of that again.    EDIT: More Info  There are no NVIDIA listings under "Uninstall a Program" in the Control Panel. Yet the "NVIDIA Control Panel" app is still in the start menu, but does not start. I believe that is because there are just three DLL files in C:\Program Files (x86)\NVIDIA Corporation\coprocmanager, and no other files/directories in coprocmanager's parent directory.  When the driver is installing, my second monitor starts working, and then stops when the installation fails.  When the driver is installing, it briefly appears as "NVIDIA GeForce GT 720" in Device manager, after it fails, it goes back to being labeled, quite simply, "Display".  Tried running...  PsExec.exe -i -s "C:\NVIDIA\DisplayDriver\368.39\Win10_64\International\setup.exe"   ..to no avail.  PC Specs (from Speccy):   Custom build NVIDIA GeForce GT720 (not from Speccy, since it just lists the monitor under Graphics). Intel Core i5 4460 @ 3.20GHz 16.0GB Dual-Channel DDR3 @ 799MHz (11-11-11-28) ASUSTeK COMPUTER INC. H81M-PLUS (SOCKET 1150)
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?
62241
I'm having some problems getting Ubuntu to install. I'm running Windows XP Home (32bit) on an older Dell Dimension 2350 with 1GB ram, trying to install either Ubuntu 12.04 LTS (32Bit) or 13.04 (32Bit) inside VirtualBox. Both versions of Ubuntu don't make it past the purple screen with the loading dots. When I change over to the "non-graphical" version, with the scrolling text, it starts to list a series of tests that are either [ok] or [fail]. There are only a few that fail, and my search on those indicates that they're not that important. There are a few settings for this VM that I've tried tweaking based on other searches for an answer (such as Enabling IO APIC, switching the Chipset to ICH9, changing the Video Memory size, Enabling 3D Acceleration, and Enabling PAE/NX. More or less, I get to the same point.  (Once I got to the screen with Desktop in the upper left corner, and the red-ish background. But an error came up that basically said there was an error, and that I could send off a report or hit cancel. I hit cancel, and instead of the installer coming up, nothing happened)  The last check that is run is "Stopping System V runlevel compatibility [ok], and a bunch of Starting [ok]s. Then I get a black screen, then a half purple half black screen graphical error. Sorta looks like snow, I don't know how else to describe it. After a while. That goes away and is replaced by a black screen again. Nothing else happens.    I like to think I'm fairly good at solving problems and following instructions, but I don't even know how to go about diagnosing this. Most of the solutions I've seen seem to involve entering things into a command line, but doesn't the OS have to be installed to be able to do that?  This is a for fun/learning experience project, so it's nothing too pertinent. But I would like to figure this out.
100050
I followed  tutorial about Nvidia drivers installation and I accidentally forget to do 5th point (disabling nouveau drivers), so now I can't boot my system. I know I am idiot but is there anything I can do to fix this?  EDIT  My boot options are (I don't if this is correct or not)  Fedora (3.8.9-200.fc18.x86_64) other two with different version   When I press e to any of these I get lines setparams, then indenticated load_video, setgfxpayload, insmod 3x, set root, then if-else, linux, initrd. There is no line starting with kernel unfortunately.  Ok, I was able to unistall the drivers so I could boot with nouveau again.
83669
I want to ask a question I am a new user to Ubuntu and I am    going to install it on my PC and Remove Windows as I have read a lot    about Ubuntu and how it's solid based system and that it's more    stable and stronger but to be honest I am a bit afraid of installing    it as I don't have the drivers CD so Does Ubuntu need drivers or not    ? and how do I check that all the drivers are installed and updated    and work correctly ? and If I want to install a driver will Ubuntu    help me to search for it and install it ?  and will Ubuntu install the sound card . the internet card and the graphics etc. automatically or not waiting for your replies    cheers :)
46591
Well, this is new.  In the middle of troubleshooting all of the other issues with Ubuntu 14.04.1 LTS, I rebooted and it now comes up with a resolution of 800 X 600, and there are no other resolutions available.  I've already re-installed the nvidia-current driver twice.  mobo: M4A89GTD-PRO  Bios: 2101  cpu:  AMD Athlon(tm) II X4 645 Processor  ram:  6111188 kB  hdd:  ATA OCZ-VERTEX3  gpu:  GeForce GT 440  Mouse / keyboard: M510, K350 single unifying receiver  Linux 3.13.0-43-generic (x86_64) Ubuntu 14.04.1 LTS   edit - I should point out, this is a brand new installation from a fresh download.  I have not changed or altered or installed anything at all beyond running software updater a few times, installing the latest nvidia-current driver, and doing a sudo-apt update a few times.  But everything is exactly as it was installed with all of the defaults.  edit - based on a recommendation below, I've completely wiped the proprietary driver and replaced it with the xorg.edgers driver.  Technically, it corrected the problem, so this is solved.
691
I am trying to boot Ubuntu on my computer.  When I boot Ubuntu, it boots to a black screen.  How can I fix this? Table of Contents:
95186
I recently installed 14.04.  But now I need a new driver for my nVidia GeForce GT 630. The former driver was rejected as not compatible with the 64-bit. I found that other driver and when I wanted to install it in the terminal with sh I was called first to stop the x-server. It cannot be installed with running x-server.  So how do I install them?
11901
When you boot from live CD, or doing the first boot after installing Ubuntu, splash screen looks awesome. But as soon as you enable nvidia-current driver, installed with apt-get, splash screen goes all crazy.  With crazy I mean that resolution is very low, font(I assume) is very weird and it all looks like it's been broken.  This happened with 10.04 and now again with 10.10.  How do I fix splash screen after enabling nvidia drivers?