顯示器設置

我的顯示器是Acer al1716, 剛進入ubuntu的時候只能夠800x640顯示

下面是一些帖子的集合, 這些步驟後， 顯示器顯示正常
----------------------------------------------
1. replace the original xorg.conf with :(it may not necessary)!!!!
# xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
EndSection

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc105"
        Option          "XkbLayout"     "it"
EndSection

Section "InputDevice"
        Identifier      "Configured Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"        "/dev/input/mice"
        Option          "Protocol"      "ImPS/2"
        Option          "ZAxisMapping"  "4 5"
        Option          "Emulate3Buttons"       "true"
EndSection


Section "InputDevice"
        Driver          "wacom"
        Identifier      "stylus"
        Option          "Device"        "/dev/input/wacom"
        Option          "Type"  "stylus"
        Option          "ForceDevice"   "ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
        Driver          "wacom"
        Identifier      "eraser"
        Option          "Device"        "/dev/input/wacom"
        Option          "Type"  "eraser"
        Option          "ForceDevice"   "ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
        Driver          "wacom"
        Identifier      "cursor"
        Option          "Device"        "/dev/input/wacom"
        Option          "Type"  "cursor"
        Option          "ForceDevice"   "ISDV4"# Tablet PC ONLY
EndSection


Section "Device"
        Identifier      "ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]"
        Boardname       "ATI Radeon"
        Busid           "PCI:1:5:0"
        Driver          "ati"
        Screen  0
        Vendorname      "ATI"
        Option          "MergedFB"      "off"
EndSection

Section "Monitor"
        Identifier      "AL1716"
        Vendorname      "Plug 'n' Play"
        Modelname       "Plug 'n' Play"
  modeline  "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
  modeline  "640x480@72" 31.5 640 664 704 832 480 489 491 520 -vsync -hsync
  modeline  "640x480@75" 31.5 640 656 720 840 480 481 484 500 -vsync -hsync
  modeline  "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
  modeline  "800x600@72" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
  modeline  "800x600@75" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
  modeline  "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
  modeline  "832x624@75" 57.284 832 864 928 1152 624 625 628 667 -vsync -hsync
  modeline  "1024x768@75" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
  modeline  "1024x768@70" 75.0 1024 1048 1184 1328 768 771 777 806 -vsync -hsync
  modeline  "1024x768@60" 65.0 1024 1048 1184 1344 768 771 777 806 -vsync -hsync
  modeline  "1152x864@75" 108.0 1152 1216 1344 1600 864 865 868 900 +hsync +vsync
  modeline  "1280x1024@75" 135.0 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
  modeline  "1280x960@60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync +vsync
  modeline  "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
  modeline  "1280x960@75" 129.86 1280 1368 1504 1728 960 961 964 1002 -hsync +vsync
  modeline  "1400x1050@60" 122.61 1400 1488 1640 1880 1050 1051 1054 1087 -hsync +vsync
  modeline  "1400x1050@75" 155.85 1400 1496 1648 1896 1050 1051 1054 1096 -hsync +vsync
  modeline  "1600x1200@65" 175.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
  modeline  "1600x1200@60" 162.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
  modeline  "1792x1344@60" 204.8 1792 1920 2120 2448 1344 1345 1348 1394 -hsync +vsync
        Gamma   1.0
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]"
        Monitor         "AL1716"
        Defaultdepth    24
        SubSection "Display"
                Depth   24
                Virtual 1792    1344
                Modes           "1280x1024@75"  "1280x960@60"   "1152x864@75"  "1280x1024@60"   "1024x768@60"   "1280x960@75"   "1024x768@70"   "1400x1050@60" "1024x768@75"    "1400x1050@75"  "832x624@75"    "1600x1200@65"  "800x600@60"   "1600x1200@60"   "800x600@75"    "1792x1344@60"  "800x600@72"    "800x600@56"   "640x480@75"     "640x480@72"    "640x480@60"
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Default Layout"
  screen 0 "Default Screen" 0 0
        Inputdevice     "Generic Keyboard"
        Inputdevice     "Configured Mouse"

        # Uncomment if you have a wacom tablet
        #       InputDevice     "stylus"        "SendCoreEvents"
        #       InputDevice     "cursor"        "SendCoreEvents"
        #       InputDevice     "eraser"        "SendCoreEvents"
EndSection
Section "Module"
        Load            "glx"
        Load            "GLcore"
        Load            "dri"
        Load            "v4l"
EndSection
Section "ServerFlags"
EndSection


----------------------------------------------
2. monitor range:
31-81, 56-75

----------------------------------------------
3. You use the "nvidia" driver (Binary drivers)

It would seem that xorg cannot detect the possible resolutions when using the "nvidia" driver. For me, the only resolution I could use was my LCD's native resolution (1680x1050).

Here's how you fix this:

1) Make a backup of your /etc/X11/xorg.conf as shown in the previous examples

2) Open /etc/X11/xorg.conf as shown in the previous examples

3) Add the following line to your existing "Screen" section:

Option "UseEdidFreqs" "false"


----------------------------------------------
4. 可是在“屏幕分辨率”窗口還是調不了刷新頻率，分辨率倒是一堆。解決辦法：
在Section "Screen"模塊下的常用分辨率後加“_xx”（xx是你想要的刷新頻率）。
還要注意一點，Section "Monitor"下的Identifier值要和Section "Screen"下的Monitor的值一致才行。一般只修改DefaultDepth值的色深後的分辨率即可，下邊是例子：
代碼:

Section "Screen"
    Identifier     "Default Screen"
    Device         "NVIDIA Corporation NV11DDR [GeForce2 MX 100 DDR/200 DDR]"
    Monitor        "BenQ FP71G"
    DefaultDepth    24
    SubSection     "Display"
        Depth       1
        Modes      "1280x1024"
    EndSubSection
    SubSection     "Display"
        Depth       4
        Modes      "1280x1024"
    EndSubSection
    SubSection     "Display"
        Depth       8
        Modes      "1280x1024"
    EndSubSection
    SubSection     "Display"
        Depth       15
        Modes      "1280x1024"
    EndSubSection
    SubSection     "Display"
        Depth       16
        Modes      "1280x1024"
    EndSubSection
    SubSection     "Display"
        Depth       24
        Modes      "1280x1024_60"
    EndSubSection
EndSection

保存退出，重啓X即可；