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RockHound 07-15-10 12:28 PM

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:

Section "Device"
    Identifier    "Configured Video Device"
    Driver        "nvidia"
    Option        "ConnectedMonitor" "DFP"

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"

Thanks in advance for any hints.



danix 07-15-10 04:06 PM

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.

RockHound 07-17-10 05:31 PM

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 ;-)



RockHound 07-17-10 05:46 PM

Re: Display and save resolution settings
Nevermind... google was my friend ... Thank you for the hint. Works as expected now.

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