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On 02/25/13 09:10, Paul Hartman wrote: |
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>On Sat, Feb 23, 2013 at 10:30 PM, Joseph <syscon780@×××××.com> wrote: |
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>> I'm trying to prevent next disaster with nvidia driver/kernel combination. |
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>> I'm running "nvidia" driver and installed "nouveau" as module. If for any |
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>> reason nvidia or nouveau will stop working I want to just run a sript and |
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>> use other one. |
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>> |
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>> Here is my configuration: |
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>> |
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>> cat /etc/modprobe.d/blacklist.conf |
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>> blacklist nouveau |
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>> |
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>> cat /etc/X11/xorg.conf |
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>> Section "Device" |
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>> Identifier "Nvidia card" |
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>> Driver "nvidia" |
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>> EndSection |
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>> |
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>> eselect opengl list |
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>> Available OpenGL implementations: |
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>> [1] nvidia * |
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>> [2] xorg-x11 |
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>> |
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>> In order to switch it to "nouveau" I would need to unload the nvidia module, |
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>> but I can not do it when it is in use so I need to stop "xdm" first, am I |
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>> correct? |
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>> /etc/init.d/xdm stop (X crashes at this moment) |
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>> modprobe -r nvidia |
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>> mv /etc/modprobe.d/blacklist.conf /etc/modprobe.d/blacklist.conf_backup |
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>> mv /etc/X11/xorg.conf /etc/X11/xorg.conf_nvidia |
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>> eselect opengl set xorg-x11 |
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>> modprobe nouveau |
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>> mv /etc/X11/xorg.conf_nouveau /etc/X11/xorg.conf |
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>> /etc/init.d/xdm start (at this moment I should have login screen) |
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>> |
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>> Did I miss anything? Will it work if I put it into a bash script? |
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> |
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>What about console framebuffer (if you use one) and KMS? I wonder if |
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>you need to do something about those. |
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|
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I've solved this problem. It is not possible to switch without rebooting, so the correct procedure would be: |
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|
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CORRECT PROCES TO FOLLOW to switch between nvidia and noveau. |
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(assuming the kernel is using "nvidia") to switch to noveau: |
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|
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mv /etc/modprobe.d/blacklist.conf_nvidia /etc/modprobe.d/blacklist.conf |
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eselect opengl set xorg-x11 |
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mv /etc/X11/xorg.conf_nouveau /etc/X11/xorg.conf |
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reboot |
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|
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Assuming: |
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cat blacklist.conf_nouveau |
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blacklist nouveau |
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|
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cat blacklist.conf_nvidia |
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blacklist nvidia |
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|
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cat xorg.conf_nouveau |
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# uncomment when the card gets IN |
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|
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Section "Device" |
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Identifier "nouveau" |
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Driver "nouveau" |
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EndSection |
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|
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at xorg.conf_nvidia |
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Section "Device" |
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Identifier "Nvidia card" |
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Driver "nvidia" |
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EndSection |
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|
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|
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-- |
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Joseph |
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