Wednesday, August 1, 2012

Ubuntu screen lock freeze

Ubuntu screen lock freeze is a OpenGL problem. Fix it by setting  ---

Install Compiz Settings Manager:
sudo apt-get install compizconfig-settings-manager
-Go to OpenGL plug-in & uncheck the Sync to VBlank option.

If you are already into the fix restart X by opening a tty Ctrl+Fn > root login . Type

/etc/init.d/lightdm restart

for Ubuntu 12.04 or later or

/etc/init.d/gdm restart

for others. If you are using any other display manager then restart it instead.

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Removing audio noise from a video

The basic steps are to extract the audio, remove noise, and then re-insert the noise-free audio back into the video wrapper. Step I: Ext...