How do I configure my new graphics card?

[LoonQ]

Hi

I am a quite new Mint fan.. (since Isadora release). I run Mint on my netbook and htpc and all has been working quite well until now. Yesterday I bought a new Nvidia card to enable vdpau on the htpc, I removed the old Nvidia card and plugged the new one in no problem so far.. but now when I boot Mint only boots into "low graphics mode". I have the newest Nvidia driver installd and the graphics card is recognized (checked in terminal) but it seems Mint no longer recognizes my Samsung full HD tv.

How do I solve this? I have tried thru control panel but I cant run Nvida config as a regular user (and I dont now how to start it as root).

[proxima_centauri]

You could try reinstalling the nvidia driver.

If you want to run nvidia-xconfig as root, simply use this command in terminal (though I don't think that would have an effect).

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sudo nvidia-xconfig

[LoonQ]

First, I reinstalled the Nvidia driver but I did not manage to get the system to use it. Then in desperation I removed the nouveau driver with the result no signal to screen after boot...

Is it possible to repair this in some way so that I can get back to square one?

[LoonQ]

Tried to boot from CD but after choosen boot option the screen goes black saying "not recognized signal". Could I boot into a non x mode and install drivers from there?

[tudeschini]

If you screwed up your graphic card configuration (like I did), try to edit the xorg.conf and set it to a standart configuration. This can be done even in the text mode.

• Create a backup of xorg.conf:

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  # sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.back

• Edit the xorg.conf file:

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  # sudo editor /etc/X11/xorg.conf

• It will open the editor. Find the "Device" section.
• Replace the whole contents of the Device section by this:

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  Section "Device"
  	Identifier	"Configured Video Device"
  	Driver		"fbdev"
  EndSection
  

• Save the file (Ctrl+O)
• Quit the editor (Ctrl+X)

Now, you can try to restart the X:

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# startx

If this fail, maybe you could want to try to modify the whole file. Erase the xorg.conf file and create a blank one:

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# sudo rm /etc/X11/xorg.conf
# sudo editor /etc/X11/xorg.conf

Write this in the file and save:

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Section "Device"
	Identifier	"Configured Video Device"
	Driver		"fbdev"
EndSection

Section "Monitor"
	Identifier	"Configured Monitor"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Monitor		"Configured Monitor"
	Device		"Configured Video Device"
EndSection

This worked for me. I hope it helps you.

PS: To restore the backup:

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# sudo cp /etc/X11/xorg.conf.back /etc/X11/xorg.conf

[LoonQ]

I am a little late but.. I solved my problem by adding vmalloc=512M in the grub settings. After that the nvidia driver was loaded and it is working. Now I am batteling to get vdpau working with mplayer.