[CentOS] Switching from Vesa driver to video adapter driver fails

[Joshua Baker-LePain]

On Fri, 12 Jan 2007 at 12:52pm, Edward Diener wrote

> The Vesa driver works fine with CentOS 4.4. I have an NVidia 6200 video 
> adapter. I go to Applications | System Settings | Display | Hardware tab and 
> find my video adapter in the list and set it. The dialog tells me I have to 
> log out for it to take effect, so I duly do that. I then getting a message 
> from a non-graphics screen saying that the attempt to switch to the video 
> adapter failed. When I view why, amidst all the information given is the 
> messages:
>
> (EE) No devices detected.
> Fatal server error:
> No screens found
>
> I am able to switch back to the Vesa driver through the non-graphics screen, 
> and this brings me back to my graphics login and I am once again successfully 
> in CentOS 4.4 using the Vesa driver.
>
> Does anybody have any idea what the messages above mean or how I can correct 
> it so it can successfully load my video adapter specific settings ?

The contents of /var/log/Xorg.0.log would be very useful in debugging this 
(read: necessary).  If you have somewhere you can put them up for download 
(http or ftp), that'd be much preferable to mailing them to the list.

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University