Difference between revisions of "Create a boot option for easy nvidia or nouveau display driver switching"

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This howto describes how to use nvidia and nouveau drivers on the same computer and kernel.   
 
This howto describes how to use nvidia and nouveau drivers on the same computer and kernel.   
 
<br>
 
<br>
{{Note}}You must know how to install {{Package|x11-drivers/nvidia-drivers}} and {{package|x11-drivers/nouveau}} (references at the end of the page). First, you need to configure your kernel and install nvidia drivers and nouveau. We assume that this stage is successfully passed.
+
{{Fancynote|You must know how to install {{Package|x11-drivers/nvidia-drivers}} and {{package|x11-drivers/nouveau}} (references at the end of the page). First, you need to configure your kernel and install nvidia drivers and nouveau. We assume that this stage is successfully passed.}}
  
 
== boot-update ==
 
== boot-update ==
Next, the most important change:
+
Next, the most important change. Edit <tt>/etc/boot.conf</tt>:
{{File
+
 
|/etc/boot.conf|<pre>
+
<pre>
 
boot {
 
boot {
 
generate grub
 
generate grub
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params += nvidia.blacklist=true # nvidia.blacklist=true is important
 
params += nvidia.blacklist=true # nvidia.blacklist=true is important
 
}  
 
}  
</pre>}}
+
</pre>
  
 
After boot-update with the new settings, you should have something like:
 
After boot-update with the new settings, you should have something like:
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</console>
 
</console>
  
Then create a new daemon:
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Then create a new daemon. Edit the file <tt>/etc/init.d/xcfgmaker</tt>:
{{File
+
 
|/etc/init.d/xcfgmaker |<pre>
+
<pre>
 
#!/sbin/runscript
 
#!/sbin/runscript
  
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}
 
}
  
</pre>}}
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</pre>
  
 
Do not forget:
 
Do not forget:
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[[Category:HOWTO]]
 
[[Category:HOWTO]]
 +
[[Category:First Steps]]

Revision as of 19:31, 4 March 2014

This howto describes how to use nvidia and nouveau drivers on the same computer and kernel.

Note: You must know how to install x11-drivers/nvidia-drivers and x11-drivers/nouveau (references at the end of the page). First, you need to configure your kernel and install nvidia drivers and nouveau. We assume that this stage is successfully passed.

boot-update

Next, the most important change. Edit /etc/boot.conf:

boot {
	generate grub
	default "Funtoo Linux [nvidia]" 
	# or
	# default "Funtoo Linux [nouveau]"
	timeout 3 
}

color {
	normal cyan/blue
	highlight blue/cyan
}

display {
	#gfxmode 1280x800
	#font unifont.pf2
}

"Funtoo Linux [nvidia]" {
	kernel vmlinuz[-v]
	params += ro console=tty1 quiet <other standard boot options>
	params += nouveau.blacklist=true vga=791 # nouveau.blacklist=true is important
	# or
	# params += nouveau.blacklist=true video=uvesafb:1440x900-8,mtrr:2
}

"Funtoo Linux [nouveau]" {
	kernel vmlinuz[-v]
	params += ro console=tty1 quiet <other standard boot options>
	params += nvidia.blacklist=true # nvidia.blacklist=true is important
} 

After boot-update with the new settings, you should have something like:

# grep menuentry /boot/grub/grub.cfg | wc -l
2
# grep menuentry /boot/grub/grub.cfg
menuentry "Funtoo Linux [nouveau] - vmlinuz-2.6.32.71_p14-rh" {
menuentry "Funtoo Linux [nvidia] - vmlinuz-2.6.32.71_p14-rh" {

xcfgmaker deamon

# mkdir /etc/X11/video/;
# cd /etc/X11/video/;
# nano 10-monitor.conf.nouveau # make default config for nouveau. or copy existing config… 
# nano 10-monitor.conf.nvidia # also for nvidia

Then create a new daemon. Edit the file /etc/init.d/xcfgmaker:

#!/sbin/runscript

# by http://wiki.sabayon.org/index.php?title=HOWTO:_Create_a_boot_option_for_easy_dual_to_single_display_switching
# To be placed in /etc/init.d/
# Run Command: rc-update add xcfgmaker boot

depend()
{
   need localmount
   before xdm-setup
   before xdm
   before alsasound
}

start()
{

   cmdline_display_mode_exist=$(cat /proc/cmdline | grep -e "nouveau.blacklist=" -e "nvidia.blacklist=")
   display_mode_nvidia_exist=$(ls /etc/X11/video/ | grep "10-monitor.conf.nvidia")
   display_mode_nouveau_exist=$(ls /etc/X11/video/ | grep "10-monitor.conf.nouveau")
   cmdline_display_mode=$(cat /proc/cmdline | awk -Fnvidia.blacklist= '{print $2}' | awk '{print $1}')
   if [ -n "$cmdline_display_mode_exist" ]; then
      if [ -n "$display_mode_nvidia_exist" ] && [ -n "$display_mode_nouveau_exist" ]; then
            #Choose the xorg file to be copied over
            if [ "$cmdline_display_mode" == "true" ]; then
               ebegin "Configuring X display with nouveau"
               cp /etc/X11/video/10-monitor.conf.nouveau /etc/X11/xorg.conf.d/10-monitor.conf
               eselect opengl set xorg-x11 >/dev/null 2>&1;
            else
               ebegin "Configuring X display with nvidia"
               cp /etc/X11/video/10-monitor.conf.nvidia /etc/X11/xorg.conf.d/10-monitor.conf
               eselect opengl set nvidia >/dev/null 2>&1;
            fi
         sleep 5
         eend 0
      else
         ebegin "Xorg file missing. Exitting"
         eend 0
      fi
   fi

}

Do not forget:

# chmod +x /etc/init.d/xcfgmaker
# rc-update add xcfgmaker boot

Additional Resources