[mythtv-users] Ahh - Evil xorg and modelines

[Damian Surr]

Steve Smith wrote:
> Damian,
> 
> Interesting:
> 
> 1) It first accepts our 1024x768 @ 60hz
>       
> 
> (II) NVIDIA(0):   Validating Mode "1024x768":
> (II) NVIDIA(0):     1024 x 768 @ 60 Hz
> (II) NVIDIA(0):     For use as DFP backend.
> 
> 
> (II) NVIDIA(0):     Mode Source: EDID
> (II) NVIDIA(0):       Pixel Clock      : 65.00 MHz
> (II) NVIDIA(0):       HRes, HSyncStart : 1024, 1048
> (II) NVIDIA(0):       HSyncEnd, HTotal : 1184, 1344
> (II) NVIDIA(0):       VRes, VSyncStart :  768,  771
> 
> 
> (II) NVIDIA(0):       VSyncEnd, VTotal :  777,  806
> (II) NVIDIA(0):       H/V Polarity     : -/-
> (II) NVIDIA(0):     Mode is valid.
> 
> 
> 
> 2) Then later on it rejects it based on the "Native resolution":
> 
> (II) NVIDIA(0):   Validating Mode "1024x768":
> (II) NVIDIA(0):     1024 x 768 @ 60 Hz
> (II) NVIDIA(0):     Mode Source: EDID
> (II) NVIDIA(0):       Pixel Clock      : 65.00 MHz
> (II) NVIDIA(0):       HRes, HSyncStart : 1024, 1048
> 
> 
> (II) NVIDIA(0):       HSyncEnd, HTotal : 1184, 1344
> (II) NVIDIA(0):       VRes, VSyncStart :  768,  771
> (II) NVIDIA(0):       VSyncEnd, VTotal :  777,  806
> (II) NVIDIA(0):       H/V Polarity     : -/-
> 
> (WW) NVIDIA(0):     Mode is rejected: Mode (1024 x 768) is too large for DFP
> 
> (WW) NVIDIA(0):     Native Resolution (Max: 800 x 600).
> 
> 
> II) NVIDIA(0):   Validating Mode "1024x768":
> (II) NVIDIA(0):     1024 x 768 @ 60 Hz
> 
> (II) NVIDIA(0):     Mode Source: X Server
> (II) NVIDIA(0):       Pixel Clock      : 
> 65.00 MHz
> (II) NVIDIA(0):       HRes, HSyncStart : 1024, 1048
> (II) NVIDIA(0):       HSyncEnd, HTotal : 1184, 1344
> (II) NVIDIA(0):       VRes, VSyncStart :  768,  771
> 
> (II) NVIDIA(0):       VSyncEnd, VTotal :  777,  806
> 
> (II) NVIDIA(0):       H/V Polarity     : -/-
> (WW) NVIDIA(0):     Mode is rejected: Mode (1024 x 768) is too large for DFP
> (WW) NVIDIA(0):     Native Resolution (Max: 800 x 600).
> 
> 
> So what we need to do first of all is convince it to either a) Ignore 
> the native resolution OR b) that the native resolution is bigger...
> 
> (Here's someone else with the same problem: 
> http://www.linuxquestions.org/questions/showthread.php?t=560726 
> <http://www.linuxquestions.org/questions/showthread.php?t=560726> )
> 
> Option a)
> We try:
>     Option "ModeValidation" "NoDFPNativeResolutionCheck"
> 
> In the Device and Monitor sections (for good measure ;-).
> Now retry...
> 
> (Remember we're going for 1024 x 768 at 60hz at this point...walk before 
> we run.)

YES!!!!!!!!!!!!

I'm so happy! I'd really started to think that my projector was broken 
and I live in too remote an area to easily test it, but you solved the 
problem Steve! The
Option "ModeValidation" "NoDFPNativeResolutionCheck"
worked like a charm and I got 1024x768 coming up beautifully!
I'm off to play with a few different possibilities not to see what 
resolution works best. Thank you so much Steve and everyone else who 
helped out on this thread!!

One happy Linux newbie who's leaning fast and has lots of respect for 
you gurus!

Cheers
Damian