To know your 3D graphic(s) controller(s) working (GPU or/and chipset) with your VGA output you can run the following command : 1/sbin/lspci | egrep 'VGA|3D' Example : 123/sbin/lspci | egrep
To see your battery infos you can use acpi if you have it or directly see system files. Upower command# In both case you can use upower command to get some usefull infos: 1upower -i /org/freedesktop/U
Change of Display Manager# Pass root 1sudo -i Then open /etc/sysconfig/displaymanager with a text editor. 1vim /etc/sysconfig/displaymanager Display Manager can be changed at line DISPLAYMANAGER="
This work with Grub2: When you are on the bootloader, hover over your distribution name and press e (e for edit) You can now add options in the window that just opened On the line beginning with linu