In order to address the problem, you'd have to be more specific.  In general, 
however, a common problem when your video works in recovery mode or when logged 
in as root, but not when you boot up and log in as a user is that one of your 
configuration files has inadvertently had its permissions changed and you can't 
write to a file that you need to write to -- things like xsessions, 
xsessions-errors, xauthority files, that kind of thing.  I can't remember the 
exact file, but if you go to your user home directory and poke around, you 
might see some files belonging to root that shouldn't.

I managed to do that once or twice by su'ing to root before I started X, 
forgetting I was root, and then starting X.  All those files got modified in my 
user home directory, and the ownership changed to root.  The next time I logged 
in as a user and tried to start X, nothing would work.  I initially thought I 
had screwed up the video driver (since I was upgrading a lot of files), but 
then I noticed that things worked OK when I logged in as root.

Note that some of these are hidden files.

billo


On Thu, 24 Mar 2011, jbander wrote:

What is taken off the ability of my video card so that it works in
Recovery mode. What's missing

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