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Graphical Environments & Desktops • xorg loses display mode when I power cycle monitor

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I have my home theater PC connected to the TV via HDMI through an audio receiver. Everything works fine at 4K (3840x2160) at 120Hz (119.88Hz) except if I turn the TV off and back on there is no display. I can get the display back by switching to a virtual console and then switching back to the graphical console.

The HTPC is running Debian 12 and has a Nvidia RTX 3050 GPU. I believe the GPU invalidates the EDID when the TV is turned off. I'd be happy if there was a way to force it to always output 4K @ 120Hz regardless of a display being connected or not.

The relevant portions of my xorg.conf are...

Code:

Section "Monitor"    # HorizSync source: edid, VertRefresh source: edid    Identifier     "Monitor0"    VendorName     "Unknown"    ModelName      "SONY TV  *30"    HorizSync       14.0 - 255.0    VertRefresh     23.0 - 121.0    Option         "DPMS"EndSectionSection "Device"    Identifier     "Device0"    Driver         "nvidia"    Option         "DynamicTwinView" "false"    Option         "NoFlip" "false"    Option         "NoLogo" "true"    Option         "ModeValidation" "NoVesaModes, NoXServerModes"    VendorName     "NVIDIA Corporation"    BoardName      "NVIDIA GeForce RTX 3050"    Option         "ConnectedMonitor" "HDMI-0"    Option         "CustomEDID" "HDMI-0:/etc/X11/edid.bin"    Option         "IgnoreEDID" "false"    Option         "UseEDID" "true"EndSectionSection "Screen"# Removed Option "metamodes" "3840x2160_60 +0+0; nvidia-auto-select +0+0 {viewportout=1920x1080+0+0}"    Identifier     "Screen0"    Device         "Device0"    Monitor        "Monitor0"    DefaultDepth    24    Option         "Stereo" "0"    Option         "ConnectedMonitor" "HDMI-0"    Option         "nvidiaXineramaInfoOrder" "HDMI-0"    Option         "metamodes" "3840x2160_120 +0+0; nvidia-auto-select +0+0 {viewportout=3840x2160+0+0}"    Option         "SLI" "Off"    Option         "MultiGPU" "Off"    Option         "BaseMosaic" "off"    Option         "NoLogo"  "True"    SubSection     "Display"        Depth       24    EndSubSectionEndSection
Any help is appreciated.

Statistics: Posted by the Goat — 2025-01-23 00:09 — Replies 0 — Views 5



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