[wplug] screen resolution problem

[Patrick Wagstrom]

Mike Sussman wrote:
> Zach,
> 
> I have found several cases where newer systems do not do as good a job 
> on the xorg.conf file as older systems.  In those cases, I have had good 
> luck just copying the older file to the newer system.
> 
> The key sequence to kill the x-server is <ctrl>-<alt>-<backspace>.  On 
> some Ubuntu systems this kills your login session and returns you to the 
> graphical login screen.  On some Ubuntu systems it returns you to a 
> black screen and you have to start up xdm or kdm or gdm yourself.

The difference in behavior can be tracked down to a few different things. 
In general, it is supposed to drop you back to a GDM login screan, but 
certain conditions, and fragility of GDM/KDM/XDM make this difficult sometime.

Also, for us old farts, stop mucking around (and telling others to muck 
around) in the xorg.conf file.  Debian already ships with a version of X 
that requires no configuration, and the new version of Ubuntu should follow 
suit.  X should just autoprobe stuff, and provided that your monitors 
provide accurate data over EDID, this should never be an issue.  Of course, 
many displays do not provide accurate information, for example, my 1366x768 
Sharp Aquos insists it's only 1280x720 -- in which case an override is 
required to get it to display 1360x768 (silly nVidia requires a multiple of 
8 for display resolution).

Anyway, even new displays should be automatically found with xrandr1.2. 
You may still need to run xrandr to use them, but they should be there 
(that's another gotcha dealing with, it can't resize the framebuffer and 
assumes what you've got it hooked up to will be the biggest it will 
display, so you need to override that setting too.  That should be fixed 
soon according to keithp).

--Patrick