F18 - dual screen problem
After an update, my dual display started having problems and I don't
know where to look.
A clean install of Fedora using KDE spin worked wonderfully with this
setup. On one upgrade, the Fedora boot process is mirrored on both
displays and stays mirrored after X starts which is configured as side
by side.
When I do a power on boot, the bios display is only on Display 1. Once
Fedora picks the kernel, the display changes to mirrored and any
comments or splash screens are the same on both screens.
If I use CTRL+ALT+F3 for example, the terminal is mirrored to both displays.
Screen saver password request box comes up on both screens but the data
only goes in on one screen. I can use either box to enter the password.
X runs slower under this configuration as I think it competes for
control and if I try to run some applications (games) the display really
gets screwed up if they require full screen, such as Tuxracer. This
will be displayed on both screens in a mirrored mode and then won't go
back to side by side until I reset the configuration.
I have tried to search through the grub2 settings to find where the
screen resolution is set but have not succeeded in configuring this.
I am using Nvidia video card with the Nouveau driver.
Is adding the following to the /etc/default/grub the correct way to fix
problems?
GRUB_GFXMODE=3840x1080x32
GRUB_GFXPAYLOAD_LINUX=keep