ubantu blackscreen after login works in every linux
here is the great tutorial to get the trouble shooting of blackscreen or forgotten password done https://www.youtube.com/watch?time_continue=25&v=J4uK3Nf1g2U https://www.youtube.com/watch?time_continue=25&v=J4uK3Nf1g2U https://www.youtube.com/watch?v=1NdO1ZF3p7o fixing broken packages problem use the below command sudo apt-get install -f sudo apt-get update Fixing black screen after login in Ubuntu 14.04 How to fix black screen after login in Ubuntu 14.04? (Ohje suomeksi lopussa.) A lot of Linux-support customers have contacted us recently asking to fix their Ubuntu laptops and workstations that suddently stopped working. The symptom is that after entering the username and password in the login screen, they are unable to get in. Instead they see a flickering screen that then goes all black for a while, and then returns back to the login screen. This problem is caused by an update that didn’t install cleanly and left the graphical desktop environment in a broken state. The fix is to open a text console by pressing Ctrl+Alt+F1 and then logging in in text mode. Once in, issue these commands to complete the upgrade successfully: $ sudo dpkg --configure -a $ sudo apt-get update $ sudo apt-get upgrade -y Finally run sudo reboot, Ubuntu restarts, and then you can log in again normally. [18/06, 2:04 PM] Saktheeswaran: Here is the crystal clear tutorial on how to get into grub or the recovery mode [18/06, 2:04 PM] Saktheeswaran: Partners Support Community Ubuntu.com Search Immutable PageInfoAttachments Ubuntu WikiLoginHelp RecoveryMode Contents Booting into recovery mode See also If your system fails to boot for whatever reason, it may be useful to boot it into recovery mode. This mode just loads some basic services and drops you into command line mode. You are then logged in as root (the superuser) and can repair your system using command line tools. If booting into recovery mode does not work you can still use your installation CD (if it is a live cd) as described in LivecdRecovery. Booting into recovery mode Switch on your computer. Wait until the UEFI/BIOS has finished loading, or has almost finished. (During this time you will probably see a logo of your computer manufacturer.) Note: UEFI fast boot may be too fast to give time to press any key. With BIOS, quickly press and hold the Shift key, which will bring up the GNU GRUB menu. (If you see the Ubuntu logo, you've missed the point where you can enter the GRUB menu.) With UEFI press (perhaps several times) the Escape key to get grub menu. Select the line which starts with "Advanced options". Select the line ending with "(recovery mode)", probably the second line, something like: Ubuntu GNU/Linux, with Linux 3.8.0-26-generic (recovery mode) Press Return and your machine will begin the boot process. After a few moments, your workstation should display a menu with a number of options. One of the options (you may need to scroll down to the bottom of the list) will be "Drop to root shell prompt". Press Return with this option highlighted. The root partition is mounted read-only. To mount it read/write, enter the command mount -o remount,rw / If you have /home, /boot, /tmp, or any other mount point on a separate partition, you can mount them with the command mount --all (This must be done following step 8 so that /etc/mtab is writable.) Alternatively, you could try selecting "Enable networking" in step 7, though this has been found to cause the system to hang (see https://bugs.launchpad.net/ubuntu/+source/friendly-recovery/+bug/981792). NOTE 1: If you have Ubuntu Quantal (12.10) or earlier, omit step 4 (the recovery mode menu items are displayed on the top-level menu). NOTE 2: If you reboot, there is no need to hold the Shift key in step 3. The GNU GRUB menu will continue to be displayed automatically on each boot until a normal startup of Ubuntu completes. To configure GRUB so the menu is always displayed, even after a normal startup, see https://help.ubuntu.com/community/Grub2/Setup. See also Recovery/Remote The material on this wiki is available under a free license, see Copyright / License for details. [18/06, 2:04 PM] Saktheeswaran: https://wiki.ubuntu.com/RecoveryMode
here is the great tutorial to get the trouble shooting of blackscreen or forgotten password done https://www.youtube.com/watch?time_continue=25&v=J4uK3Nf1g2U https://www.youtube.com/watch?time_continue=25&v=J4uK3Nf1g2U https://www.youtube.com/watch?v=1NdO1ZF3p7o fixing broken packages problem use the below command sudo apt-get install -f sudo apt-get update Fixing black screen after login in Ubuntu 14.04 How to fix black screen after login in Ubuntu 14.04? (Ohje suomeksi lopussa.) A lot of Linux-support customers have contacted us recently asking to fix their Ubuntu laptops and workstations that suddently stopped working. The symptom is that after entering the username and password in the login screen, they are unable to get in. Instead they see a flickering screen that then goes all black for a while, and then returns back to the login screen. This problem is caused by an update that didn’t install cleanly and left the graphical desktop environment in a broken state. The fix is to open a text console by pressing Ctrl+Alt+F1 and then logging in in text mode. Once in, issue these commands to complete the upgrade successfully: $ sudo dpkg --configure -a $ sudo apt-get update $ sudo apt-get upgrade -y Finally run sudo reboot, Ubuntu restarts, and then you can log in again normally. [18/06, 2:04 PM] Saktheeswaran: Here is the crystal clear tutorial on how to get into grub or the recovery mode [18/06, 2:04 PM] Saktheeswaran: Partners Support Community Ubuntu.com Search Immutable PageInfoAttachments Ubuntu WikiLoginHelp RecoveryMode Contents Booting into recovery mode See also If your system fails to boot for whatever reason, it may be useful to boot it into recovery mode. This mode just loads some basic services and drops you into command line mode. You are then logged in as root (the superuser) and can repair your system using command line tools. If booting into recovery mode does not work you can still use your installation CD (if it is a live cd) as described in LivecdRecovery. Booting into recovery mode Switch on your computer. Wait until the UEFI/BIOS has finished loading, or has almost finished. (During this time you will probably see a logo of your computer manufacturer.) Note: UEFI fast boot may be too fast to give time to press any key. With BIOS, quickly press and hold the Shift key, which will bring up the GNU GRUB menu. (If you see the Ubuntu logo, you've missed the point where you can enter the GRUB menu.) With UEFI press (perhaps several times) the Escape key to get grub menu. Select the line which starts with "Advanced options". Select the line ending with "(recovery mode)", probably the second line, something like: Ubuntu GNU/Linux, with Linux 3.8.0-26-generic (recovery mode) Press Return and your machine will begin the boot process. After a few moments, your workstation should display a menu with a number of options. One of the options (you may need to scroll down to the bottom of the list) will be "Drop to root shell prompt". Press Return with this option highlighted. The root partition is mounted read-only. To mount it read/write, enter the command mount -o remount,rw / If you have /home, /boot, /tmp, or any other mount point on a separate partition, you can mount them with the command mount --all (This must be done following step 8 so that /etc/mtab is writable.) Alternatively, you could try selecting "Enable networking" in step 7, though this has been found to cause the system to hang (see https://bugs.launchpad.net/ubuntu/+source/friendly-recovery/+bug/981792). NOTE 1: If you have Ubuntu Quantal (12.10) or earlier, omit step 4 (the recovery mode menu items are displayed on the top-level menu). NOTE 2: If you reboot, there is no need to hold the Shift key in step 3. The GNU GRUB menu will continue to be displayed automatically on each boot until a normal startup of Ubuntu completes. To configure GRUB so the menu is always displayed, even after a normal startup, see https://help.ubuntu.com/community/Grub2/Setup. See also Recovery/Remote The material on this wiki is available under a free license, see Copyright / License for details. [18/06, 2:04 PM] Saktheeswaran: https://wiki.ubuntu.com/RecoveryMode