I’m trying to setup Xorg in headless mode with a 4K desktop on a Tesla M60. The Xorg configuration below gets clamped to 2560x1600.
Section "DRI"
Mode 0666
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:5:0:0"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Device0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "3840x2160"
EndSubSection
EndSection
Here is a section of the log file. It looks like there is a per-head max. Is there a way to increase this?
[1397673.587] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
[1397673.587] (==) NVIDIA(0): RGB weight 888
[1397673.587] (==) NVIDIA(0): Default visual is TrueColor
[1397673.587] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[1397673.587] (**) NVIDIA(0): Enabling 2D acceleration
[1397674.264] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:5:0:0
[1397674.264] (--) NVIDIA(0): DFP-0
[1397674.264] (--) NVIDIA(0): DFP-1
[1397674.264] (--) NVIDIA(0): DFP-2
[1397674.264] (--) NVIDIA(0): DFP-3
[1397674.265] (II) NVIDIA(0): NVIDIA GPU Tesla M60 (GM204GL-A) at PCI:5:0:0 (GPU-0)
[1397674.265] (--) NVIDIA(0): Memory: 8388608 kBytes
[1397674.265] (--) NVIDIA(0): VideoBIOS: 84.04.85.00.01
[1397674.265] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[1397674.265] (--) NVIDIA(GPU-0): NVIDIA VGX (DFP-0): connected
[1397674.265] (--) NVIDIA(GPU-0): NVIDIA VGX (DFP-0): External TMDS
[1397674.266] (WW) NVIDIA(GPU-0): Mode (3840 x 2160) larger than per-head max
[1397674.266] (WW) NVIDIA(GPU-0): resolutionsupported (2560 x 1600)
[1397674.266] (WW) NVIDIA(GPU-0): Mode (4096 x 2160) larger than per-head max
[1397674.266] (WW) NVIDIA(GPU-0): resolutionsupported (2560 x 1600)
[1397674.266] (WW) NVIDIA(0): No valid modes for "DFP-0:3840x2160"; removing.
[1397674.266] (WW) NVIDIA(0):
[1397674.266] (WW) NVIDIA(0): Unable to validate any modes; falling back to the default mode
[1397674.266] (WW) NVIDIA(0): "nvidia-auto-select".
[1397674.266] (WW) NVIDIA(0):
[1397674.266] (II) NVIDIA(0): Validated MetaModes:
[1397674.266] (II) NVIDIA(0): "DFP-0:nvidia-auto-select"
[1397674.266] (II) NVIDIA(0): Virtual screen size determined to be 2560 x 1600
[1397674.268] (--) NVIDIA(0): DPI set to (92, 101); computed from "UseEdidDpi" X config
[1397674.268] (--) NVIDIA(0): option
[1397674.268] (--) Depth 24 pixmap format is 32 bpp