EDID resolution problem

[onex]

hi,

i have two 21" viewsonic lcd-panels both connected to an 8600gt card via dvi.
one panel can't "tell" his EDID-settings so it isn't recognized correctly by the nvidia-driver anymore.
after checking the Xorg.0.log i got these lines:

(II) NVIDIA(0): Frequency information for ViewSonic VP2130 SERIES (DFP-0):
(II) NVIDIA(0):   HorizSync   : 30.000-92.000 kHz
(II) NVIDIA(0):   VertRefresh : 50.000-75.000 Hz
(II) NVIDIA(0):     (HorizSync from EDID)
(II) NVIDIA(0):     (VertRefresh from EDID)
(II) NVIDIA(0):
(II) NVIDIA(0): Native backend timings for ViewSonic VP2130 SERIES (DFP-0):
(II) NVIDIA(0):   1600 x 1200 @ 60 Hz
(II) NVIDIA(0):     Pixel Clock      : 162.00 MHz
(II) NVIDIA(0):     HRes, HSyncStart : 1600, 1664
(II) NVIDIA(0):     HSyncEnd, HTotal : 1856, 2160
(II) NVIDIA(0):     VRes, VSyncStart : 1200, 1201
(II) NVIDIA(0):     VSyncEnd, VTotal : 1204, 1250
(II) NVIDIA(0):     H/V Polarity     : +/+

so the first panel is "good:
but these are the lines for the second panel:

(II) NVIDIA(0): Frequency information for DFP-1:
(II) NVIDIA(0):   HorizSync   : 30.000-92.000 kHz
(II) NVIDIA(0):   VertRefresh : 50.000-75.000 Hz
(II) NVIDIA(0):     (HorizSync from SecondMonitorHorizSync X Config Option)
(II) NVIDIA(0):     (VertRefresh from SecondMonitorVertRefresh X Config
(II) NVIDIA(0):     Option)
(II) NVIDIA(0):
(II) NVIDIA(0): Native backend timings for DFP-1:
(II) NVIDIA(0):   640 x 480 @ 60 Hz
(II) NVIDIA(0):     Pixel Clock      : 25.18 MHz
(II) NVIDIA(0):     HRes, HSyncStart :  640,  656
(II) NVIDIA(0):     HSyncEnd, HTotal :  752,  800
(II) NVIDIA(0):     VRes, VSyncStart :  480,  490
(II) NVIDIA(0):     VSyncEnd, VTotal :  492,  525
(II) NVIDIA(0):     H/V Polarity     : +/+

how can i tell Xorg not to set a native backend resolution to 640 x 480 and use 1600 x 1200 instead?
i tried these options, but without success:

    Option         "UseEdidFreqs" "false"
    Option         "IgnoreEDID" "true"
    Option         "ModeValidation" "DFP-1: NoEdidDFPMaxSizeCheck"

[onex]

is there really no solution to get this display working with xorg without the "resolution-checking"?
with windows i can use both displays with native resolution via dvi although one panel isn't "edid-talking" anymore. (this display was recognized as "standard monitor")
but how want's to use windows ...???

[netllama]

Please see the forum sticky posts.

[onex]

Originally Posted by netllama

Please see the forum sticky posts.

what do you mean?
i nearly checked the whole forum before posting but i didn't found any working tips for my problem ...

[netllama]

I mean that you need to follow the instructions in the sticky posts if you're expecting assistance.

[onex]

today i found this CustomEDID option ...
that's exactly the option i was searching for the whole time ...
now i'm using the edid-info from the working panel and everything is fine!!!!

anyway ... thanks for your help and this forum!

christian frey.

[antiplex]

the ones who don't have a second identical display they get working might find this thread where i linked to a possible solution interesting...

i know it's in the solaris section... i realized this a little late