[Xorg-driver-geode] looking at wide mode support for GeodeLX (continued)

[Bart Trojanowski]

Hi Jordan,

* Jordan Crouse <jordan.crouse at amd.com> [080211 14:44]:
> Attached is a patch to only go through Cimarron and Durango mode validation
> if the mode flags are set to DEFAULT or BUILTIN.  Anything else
> especially (USERDEF and DRIVER) should pass right through.
> 
> This is neither compile tested nor tested on hardware, so please do so and
> let me know.

I have not yet reviewed the patch.  I just applied it and ran it on top
of gutsy w/ 2.6.6.7 and my CPUID patch in xorg.

Running X with no modes set in the xorg.conf puts my monitor into
1280x1024.  All the other modes are rejected, and in the log I see
things like:

(II) AMD(0): Not using default mode "1280x800" (-2/unknown reason)

... the -2 is MODE_BAD returned by LXValidMode().

Making the change below makes higher modes work again.

-Bart

diff --git a/src/amd_lx_driver.c b/src/amd_lx_driver.c
index c779ac1..313b45d 100644
--- a/src/amd_lx_driver.c
+++ b/src/amd_lx_driver.c
@@ -1420,7 +1420,7 @@ LXValidMode(int scrnIndex, DisplayModePtr pMode, Bool Verbose, int flags)
 
       ret = vg_get_display_mode_index(&vgQueryMode);
 
-      if (ret < 0)
+      if (pGeode->Output & OUTPUT_PANEL && ret < 0)
 	return MODE_BAD;
     }