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-   -   EDID resolution problem (http://www.nvnews.net/vbulletin/showthread.php?t=101682)

onex 11-04-07 08:22 AM
EDID resolution problem
 
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:
Code:
(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:
Code:
(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:
Code:
    Option        "UseEdidFreqs" "false"
    Option        "IgnoreEDID" "true"
    Option        "ModeValidation" "DFP-1: NoEdidDFPMaxSizeCheck"

onex 11-06-07 05:53 AM
Re: EDID resolution problem
 
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 11-06-07 09:49 AM
Re: EDID resolution problem
 
Please see the forum sticky posts.

onex 11-06-07 10:24 AM
Re: EDID resolution problem
 
Quote:
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 11-06-07 10:31 AM
Re: EDID resolution problem
 
I mean that you need to follow the instructions in the sticky posts if you're expecting assistance.

onex 11-07-07 02:51 PM
SOLVED: EDID resolution problem
 
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 11-09-07 03:23 PM
Re: EDID resolution problem
 
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 :(


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