Hi Patrick,

Do you know if, when you installed the new driver, it rewrote your XF86Config file? We've seen this problem before, when a graphics card is cofigured to use less than 24 bit color depth.

a good way to test this is to run the command 'glxinfo -t' . If you take a look at the output of this command (there will be lots!), towards the end there will be a table of 'visuals'. One of the columns of this table will be labeled 'depth'. What are the values in this column (16s or 24s ?) (Alternatively, you could send me the output and I can take a look at it...)

Another thing to check would be to look in your XF86Config file (most likely located at /etc/X11/XF86Config), and see what the section entitled "Screen" says. You're looking specifically for the value of the 'Depth' entry.

Thanks, Dan

---------------------------- Daniel Greenblatt UCSF Computer Graphics Lab dan@cgl.ucsf.edu

On Mon, 12 Jan 2004, Patrick Ladam wrote:

Date: Mon, 12 Jan 2004 13:04:33 +0100 From: Patrick Ladam ladam@smbh.smbh.univ-paris13.fr To: chimera-dev@cgl.ucsf.edu Subject: [chimera-dev] Chimera dead after NVidia driver install...

Hi all,

I had chimera 1.1872 working OK on my MDK 9.2 Linux box until I installed the NVidia driver for my GeFOrce2 card. What happens now is that chimera launches but stops during start-up with an error box indicating this message: "Togl: Couldn't get visual"

This sounds like an OpenGL problem to me but I am far from being a specialist on this. Does anyone have a clue how I can debug/fix this ?

Bye

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| Patrick LADAM | | | Laboratoire CSSB | THE BIG BANG THEORY: | | UFR SMBH | | | 74 rue Marcel Cachin | In the begining there was | | 93017 Bobigny CEDEX | nothing at all. | | e-mail: | | | ladam@smbh.smbh.univ-paris13.fr | Then, it exploded... | | Tel: 01 48 38 77 26 / 76 85 | | | Fax: 01 48 38 77 77 | |

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