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Old 07-15-10, 12:28 PM   #1
RockHound
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Join Date: Dec 2003
Posts: 14
Default Display and save resolution settings

Hi everyone,

struggling with the following issue: I have a AV-Receiver connected via DVI-HDMI cable to an nvidia cards DVI output. If the TV and AV-Receiver are powered on, the resolution set by the card is fine. But, if the machine is powered on without having the receiver and TV on, the resolution drops back to 640x480 or something in that range.

How do I save the auto-configured values in my xorg.conf?

Current relevant sections in xorg.conf:
Code:
Section "Device"
    Identifier     "Configured Video Device"
    Driver         "nvidia"
    Option	"ConnectedMonitor" "DFP"
EndSection

Section "Screen"
    Identifier     "Default Screen"
    Device         "Configured Video Device"
    Monitor        "Configured Monitor"
    Option         "UseEdidDpi" "False"
    Option         "DPI" "85x85"
    SubSection     "Display"

#        Modes      "nvidia-auto-select"
        Modes      "1920x1080"
    EndSubSection
EndSection
Thanks in advance for any hints.

Regards,

Martin
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Old 07-15-10, 04:06 PM   #2
danix
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Location: Santa Clara, CA
Posts: 237
Default Re: Display and save resolution settings

Hi Martin,

With the receiver and TV off, the GPU probably can't read the EDID. It can't determine what the resolution of your TV is without the EDID, so it falls back to a safe default value. (Usually, EDIDs can be read when hardware is powered off and directly connected, but it's likely that the receiver doesn't pass through when it's powered off.)

You can work around this by setting custom modelines, or something that would probably be more convenient for you is to save your display's EDID to a file and then add it to your X configuration using the "CustomEDID" option.
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Old 07-17-10, 05:31 PM   #3
RockHound
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Posts: 14
Default Re: Display and save resolution settings

Hi danix,

you hit the nail perfectly. I would love to save the EDID. But how? RTFM? Maybe I should ;-)

Regards,

Martin
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Old 07-17-10, 05:46 PM   #4
RockHound
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Join Date: Dec 2003
Posts: 14
Default Re: Display and save resolution settings

Nevermind... google was my friend ... Thank you for the hint. Works as expected now.
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