Difference between pages "Create a boot option for easy nvidia or nouveau display driver switching" and "DELL M4800"

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This howto describes how to use nvidia and nouveau drivers on the same computer and kernel. 
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{{PageNeedsUpdates}}
<br>
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{{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.}}
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== boot-update ==
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The most important change: edit <tt>/etc/boot.conf</tt>:
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{{file|name=/etc/boot.conf|desc= |body=
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boot {
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generate grub
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default "Funtoo Linux [nvidia]"
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# or
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# default "Funtoo Linux [nouveau]"
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timeout 3
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}
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color {
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normal cyan/blue
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highlight blue/cyan
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}
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display {
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#gfxmode 1280x800
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#font unifont.pf2
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}
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"Funtoo Linux [nvidia]" {
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kernel vmlinuz[-v]
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params += ro console=tty1 quiet <other standard boot options>
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params += nouveau.blacklist=true vga=791 # nouveau.blacklist=true is important
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# or
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# params += nouveau.blacklist=true video=uvesafb:1440x900-8,mtrr:2
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}
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"Funtoo Linux [nouveau]" {
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kernel vmlinuz[-v]
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params += ro console=tty1 quiet <other standard boot options>
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params += nvidia.blacklist=true # nvidia.blacklist=true is important
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}
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}}
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Next, run [[Boot-Update | <tt>boot-update</tt>]].
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After boot-update has been run, you should have something like:
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<console>
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###i## grep menuentry /boot/grub/grub.cfg | wc -l
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2
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###i## grep menuentry /boot/grub/grub.cfg
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menuentry "Funtoo Linux [nouveau] - vmlinuz-2.6.32.71_p14-rh" {
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menuentry "Funtoo Linux [nvidia] - vmlinuz-2.6.32.71_p14-rh" {
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</console>
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== xcfgmaker deamon ==
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<console>
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###i## mkdir /etc/X11/video/;
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###i## cd /etc/X11/video/;
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###i## nano 10-monitor.conf.nouveau # make default config for nouveau. or copy existing config…
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###i## nano 10-monitor.conf.nvidia # also for nvidia
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</console>
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Then create a new daemon. Edit the file <tt>/etc/init.d/xcfgmaker</tt>:
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<syntaxhighlight lang="bash">
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#!/sbin/runscript
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# by http://wiki.sabayon.org/index.php?title=HOWTO:_Create_a_boot_option_for_easy_dual_to_single_display_switching
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# To be placed in /etc/init.d/
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# Run Command: rc-update add xcfgmaker boot
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depend()
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{
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  need localmount
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  before xdm-setup
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  before xdm
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  before alsasound
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}
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start()
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{
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  cmdline_display_mode_exist=$(cat /proc/cmdline | grep -e "nouveau.blacklist=" -e "nvidia.blacklist=")
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  display_mode_nvidia_exist=$(ls /etc/X11/video/ | grep "10-monitor.conf.nvidia")
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  display_mode_nouveau_exist=$(ls /etc/X11/video/ | grep "10-monitor.conf.nouveau")
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  cmdline_display_mode=$(cat /proc/cmdline | awk -Fnvidia.blacklist= '{print $2}' | awk '{print $1}')
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  if [ -n "$cmdline_display_mode_exist" ]; then
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      if [ -n "$display_mode_nvidia_exist" ] && [ -n "$display_mode_nouveau_exist" ]; then
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            #Choose the xorg file to be copied over
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            if [ "$cmdline_display_mode" == "true" ]; then
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              ebegin "Configuring X display with nouveau"
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              cp /etc/X11/video/10-monitor.conf.nouveau /etc/X11/xorg.conf.d/10-monitor.conf
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              eselect opengl set xorg-x11 >/dev/null 2>&1;
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            else
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              ebegin "Configuring X display with nvidia"
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              cp /etc/X11/video/10-monitor.conf.nvidia /etc/X11/xorg.conf.d/10-monitor.conf
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              eselect opengl set nvidia >/dev/null 2>&1;
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            fi
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        sleep 5
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        eend 0
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      else
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        ebegin "Xorg file missing. Exitting"
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        eend 0
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      fi
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  fi
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}
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</syntaxhighlight>
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Do not forget:
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<console>
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###i## chmod +x /etc/init.d/xcfgmaker
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###i## rc-update add xcfgmaker boot
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</console>
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== Additional Resources ==
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*[http://en.gentoo-wiki.com/wiki/Nvidia Nvidia how-to on gentoo-wiki]
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*[http://en.gentoo-wiki.com/wiki/Nouveau Nouveau how-to on gentoo-wiki]
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*[http://sudormrf.wordpress.com/2011/02/14/create-a-boot-option-for-easy-nvidia-or-nouveau-display-driver-switching The same text on my blog(in Russian)]
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[[Category:HOWTO]]
 
[[Category:HOWTO]]
[[Category:First Steps]]
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[[Category:HWLaptop]]
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[[Category:Hardware Compatibility]]

Latest revision as of 18:36, 27 June 2014

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