Re: External CRT works on 1024x768 but LCD not. Please Help!!!

Hi,

Thanks a lot for replying, really!

> The 82852GM supports two independent display. You have one at 00:02:.0 
> and the other at 00:02.1. You are configured to use BusID  
> "PCI:0:2:0". I am not sure which video port 0:2:0 drivers. One thing 
> you can try is change BusID  to "PCI:0:2:1".I suspect the reason it 
> works is that your system have two graphics controller. And one of it 
> is the 350Mhz 24-bit RAMDAC that support a regular scan analog monitor.

Are these BusIDs related to the display pipes reported in the Xfree log:

...
(II) I810(0): Display Info: CRT: attached: TRUE, present: TRUE, size: (800,600)
(II) I810(0): Display Info: TV: attached: FALSE, present: TRUE, size: (800,600)
(II) I810(0): Display Info: DFP (digital flat panel): attached: FALSE, present: FALSE, size: (0,0)
(II) I810(0): Display Info: LFP (local flat panel): attached: TRUE, present: TRUE, size: (1024,768)
(II) I810(0): Display Info: TV2 (second TV): attached: FALSE, present: FALSE, size: (0,0)
(II) I810(0): Display Info: DFP2 (second digital flat panel): attached: FALSE, present: FALSE, size: (0,0)
(II) I810(0): Currently active displays on Pipe A:
(II) I810(0): 	CRT
(II) I810(0): No active displays on Pipe B.
...


I mean:

Display Pipe A = BusID PCI:0:2:0
Display Pipe B = BusID PCI:0:2:1

or vice-versa?

> LCD and CRT don't use same code.

I am sorry, I do not understand this. Why the codes are differente?

In the Xfree log I see:

...
I810(0): VESA VBE DDC supported
(II) I810(0): VESA VBE DDC Level 2
(II) I810(0): VESA VBE DDC transfer in appr. 1 sec.
(II) I810(0): VESA VBE DDC read successfully
(II) I810(0): Manufacturer: SAM  Model: 1d13  Serial#: 0
(II) I810(0): Year: 1997  Week: 46
(II) I810(0): EDID Version: 1.1
...


I am far from beingg an expert on this, so forgive me if this a stupid 
question, but what is "VESA VBE DCC Level 2"? It seems to be some kind o 
protocol that allows the X11 driver to communicate with the CRT and get 
information about it (Manufacturer, Model, etc.). If that is true, where 
is all this information stored? In some chip at the CRT?

When X11 tryes to read this same information from the LCD (the LFP found 
by X11, reported to support 1024x768...), it returns a error saying that 
it could not read the info. Could this be problem, I mean, the LFP is 
not able to send to the X11 driver this information? Can´t I 
configure/enter this information by hand?

Thanks a lot again.

Regards,

Sergio


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