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Showing posts from October, 2011

Ubuntu 11.10 and ATI radeon problem : fan always on

Since I migrated my laptop (HP 4720s) to Ubuntu 11.10 with gnome-shell, I have the following issue :
the open source ATI drivers works well but my fan is always spinningthe additional drivers proposed by Ubuntu don't work and make gnome-shell unusablethe drivers (11.9) from AMD is very slow

So, for the moment, the best deal for me is to keep the open source drivers. DON'T INSTALL ANY OTHER DRIVER THAN THE ONCE INSTALLED BY DEFAULT. What we will do is to underclock the GPU to keep the temperature acceptable and avoid any problems with the fan. Let's open a terminal :echo -e '#!/bin/sh\necho low > /sys/class/drm/card0/device/power_profile' | sudo tee /etc/init.d/ati-power-savesudo chmod +x /etc/init.d/ati-power-savesudo update-rc.d ati-power-save defaults 99By the way, we will increase FPS by disabling vertical sync.

echo 'export vblank_mode=0' | sudo tee -a /etc/environment
Reboot and enjoy the silence!

Ubuntu 11.10 : you should try gnome-shell

Ubuntu 11.10 is provided with Unity, the graphical user interface from Canonical. Compared to the previous release (Ubuntu 11.04), you can now swith to Gnome Shell. But, why should you swith from Unity to Gnome Shell that you could consider as very similar? My opinion is that Gnome Shell is more pragmatic and beautiful than Unity.
So, how to activate Gnome Shell ? Go to the software center and activate the patner repositories in the software sourcesIn a terminal, run sudo apt-get install gnome-shellActivate it by default with sudo /usr/lib/lightdm/lightdm-set-defaults -s gnome-shellReboot and enjoy!Now that you have almost a prefect shell, you should install some addons : sudo apt-get install ubuntu-restricted-extras (for flash, java and dvd features)enable dvd decryption with sudo sh /usr/share/doc/libdvdread4/install-css.shsudo apt-get updatesudo apt-get install chromium-browsersudo apt-get remove firefoxsudo apt-get install smplayerA good thing is also to enable numlock on lightdm : …