Display and save resolution settings

RockHound · 07-15-10, 12:28 PM

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

**danix** · 07-15-10, 04:06 PM

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

Hi danix,

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

Regards,

Martin

RockHound · 07-17-10, 05:46 PM

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

07-15-10, 12:28 PM	#1
RockHound Registered User Join Date: Dec 2003 Posts: 14	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

07-15-10, 04:06 PM	#2
danix NVIDIA Corporation Join Date: Feb 2010 Location: Santa Clara, CA Posts: 237	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.

07-17-10, 05:31 PM	#3
RockHound Registered User Join Date: Dec 2003 Posts: 14	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

07-17-10, 05:46 PM	#4
RockHound Registered User Join Date: Dec 2003 Posts: 14	Re: Display and save resolution settings Nevermind... google was my friend ... Thank you for the hint. Works as expected now.