Я не могу изменить разрешение видео на видеокарте NVIDIA Quadro K620 на 1920x1200 в Ubuntu 18.04. Эта конфигурация совместима, поскольку она использовалась в предыдущих версиях Ubuntu и указана в спецификации видеокарты. Мне кажется очень странным, что Xorg не принимает никаких модификаций, которые я добавляю, это как если бы я не читал его.

Максимальное разрешение, которое я могу изменить, составляет 1600 x 900 от конфигурации Gnome и от панели управления Nvidia X Server Setting, но я никогда не вижу 1920x1200.

У меня установлен драйвер nvidia

01:00.0 VGA compatible controller: NVIDIA Corporation GM107GL [Quadro K620] (rev a2) (prog-if 00 [VGA controller])
    Subsystem: NVIDIA Corporation GM107GL [Quadro K620]
    Flags: bus master, fast devsel, latency 0, IRQ 126
    Memory at a2000000 (32-bit, non-prefetchable) [size=16M]
    Memory at 90000000 (64-bit, prefetchable) [size=256M]
    Memory at a0000000 (64-bit, prefetchable) [size=32M]
    I/O ports at 4000 [size=128]
    [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
    Capabilities: <access denied>
    Kernel driver in use: nvidia
    Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia

Мой Xorg.conf

Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen      0  "Screen0" 0 0
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
    Option         "Xinerama" "0"
EndSection

Section "Files"
    ModulePath      "/usr/lib/xorg/modules"
    FontPath        "/usr/share/fonts/X11/misc"
    FontPath        "/usr/share/fonts/X11/cyrillic"
    FontPath        "/usr/share/fonts/X11/100dpi/:unscaled"
    FontPath        "/usr/share/fonts/X11/75dpi/:unscaled"
    FontPath        "/usr/share/fonts/X11/Type1"
    FontPath        "/usr/share/fonts/X11/100dpi"
    FontPath        "/usr/share/fonts/X11/75dpi"
    FontPath        "built-ins"
EndSection

Section "Module"
    Load           "glx"
EndSection

Section "InputDevice"
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "InputDevice"
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/input/mice"
    Option         "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "CRT-0"
    HorizSync       28.0 - 55.0
    VertRefresh     43.0 - 72.0 
    Modeline "1920x1200_60.00" 193.25 1920 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Quadro K620"
EndSection

Section "Screen"

# Removed Option "metamodes" "nvidia-auto-select +0+0"
# Removed Option "metamodes" "1920x1200 +0+0; nvidia-auto-select +0+0"
# Removed Option "metamodes" "1920x1200 +0+0"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "1600x900 +0+0"
    Option         "metamodes" "nvidia-auto-select +0+0"
    Option         "metamodes" "1920x1200 +0+0; nvidia-auto-select +0+0" 
    Option         "metamodes" "1920x1200 +0+0"   
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
        Modes "1920x1200"
    EndSubSection
EndSection

Вывод команды xrandr:

Screen 0: minimum 8 x 8, current 1600 x 900, maximum 16384 x 16384
DVI-I-0 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768      60.00 +
   1600x900      59.82* 
   1400x900      59.88  
   1368x768      59.88    59.85  
   1360x768      59.96    59.80  
   1280x800      59.91    59.81  
   1280x720      59.86    59.74  
   1152x864      60.00  
   1024x576      59.90    59.82  
   960x540       59.82    59.63  
   864x486       59.92    59.57  
   800x600       72.19    60.32    56.25  
   800x450       59.82  
   700x450       59.88  
   684x384       59.88    59.85  
   680x384       59.96    59.80  
   640x480       59.94  
   640x400       59.98    59.88  
   640x360       59.86    59.83  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.82    59.63  
   432x243       59.92    59.57  
   400x300       72.19  
   320x240       60.05  
DVI-I-1 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)

Вывод команды cvt 1920 1200:

# 1920x1200 59.88 Hz (CVT 2.30MA) hsync: 74.56 kHz; pclk: 193.25 MHz
Modeline "1920x1200_60.00"  193.25  1920 2056 2256 2592  1200 1203 1209 1245 -hsync +vsync
|источник

0