Intalled the wrong driver

[micahh2]

After a power outage my computer's resolution was out of whack (I mean to low) and it wasn't working the way it should (going to display settings didn't help) I installed a ATI drivers for my graphics card, don't ask me why I was just experimenting, while I have learned my lesson I now cannot boot up mint, well I can but I get a messed up screen. Do I have to reinstall?

I think its was supposed to have nviada dirver installed

I believe this is the relevant output from the lspci command:
VGA compatible controller: VIA Technologies, Inc. KM400/KN400/P4M800 [S3 UniChrome] (rev 01)

really sorry, it was a quite dumb move, maybe this post should be in novice advice

[Husse]

You have Via Unichrome - not the most easy to cope with
There is a driver installed by default - openchrome
I don't understand how you managed to install the ATI driver, but try to uninstall it the same way you installed it
Then edit xorg.conf

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gksu gedit /etc/X11/xorg.conf

Add a line
Driver "openchrome"
to
Section "Device"
Hopefully this helps

[micahh2]

um well you see I cant boot up actually I can I just cant get to the boot screen to get to the terminal. when I boot up i get the nice Linux mint logo wit the loading bar then the screen turns black for a while and I get a garbled red blue and black screen from which nothing I do seems to make a big difference, some key combinations change the red black and blue screen a little bit, but not much.

If it helps I guess the first time after I made the mistake I tried to boot up and it dropped me right in to the terminal where I proceeded to login and type:

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sudo kill now

It said the system is shuting down now! for maintenance

and then I got a red blue and black screen giving me many options among them "fix graphics" (or some thing like that) and normal boot

I chose fix graphics hoping that it would reset the driver, the next time I boot up well I get what I described above.
I hope you can help you guys have great support and a great OS

[micahh2]

Okay update, for some reason I was under the impression that I was unable to boot into system rec I am able to boot into sysem rec and I think I might be able to fix my problem, by uninstalling the ati driver then installing the right driver (opencrome), If I can drop to root, therin lies the most recent problem, it wont acept my password for root I have tried it many times and it wont let me in. I haven't set a 'root' account up since it was advised against when I set up the operating sys, could this be the problem?

Also this is how I installed (by accident) the ati driver.

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sudo envyng -t

and then

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3

I know it was dumb but maybe some one else can learn from this.

[Husse]

If you have Gloria the root password is the same as your password
In earlier versions it's random unless you set it yourself
Boot the live CD
Edit /etc/X11/xorg.conf in your installed system on the hard disk
In Section "Device" add the line
Driver "vesa"
Reboot and you ought to boot normally, but vesa is a crappy emergency driver
Delete the Driver "vesa" line
Proceed to uninstall the Radeon driver through Envy and reboot
I think you should be back to normal
If not try adding the line
Driver "openchrome"
the same way as before if necessary

[micahh2]

I'll give it a try thanks! but for those who might have had a similar problem (with booting into root, not installing the wrong drivers) I updated to Gloria but maybe it didn't reset my password?

[Husse]

Yes - upgrading to Gloria does not give you the Gloria behavior for root password
It can't be done I think so when you're up again set a root password