解像度を設定しようとすると「ガンマのサイズを取得できません」エラー
11.10では、最大許容解像度は1024x768ですが、モニターはWindowsで1280x800をサポートしています。
Xrandrでこれを解決する方法を見てきましたが、ガンマのサイズを取得できないというメッセージが常に表示されます。
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 0mm x 0mm
1024x768 61.0*
800x600 61.0
640x480 60.0
ラップトップに1280x800の解像度を追加する他の方法はありますか、これを回避する方法はありますか？
前もって感謝します。
Xrandrに表示される最大解像度が1024x768に制限されていることに気付きました。最初に、以下のウィキをたどって、XにビデオRAMを認識させることができます。
つまり、/usr/share/X11/xorg.conf.d/99-vesahackに改行を入れます。
再起動後に最大値が正常に変更されたら、次の手順に進むことができます。たとえば、--newmodeや--addmodeなどです。
アイビーブリッジのデバッグ中にこの問題が発生しました。これが「ガンマのサイズを取得できませんでした」というエラーの原因であると思われます。
Xorg.confファイルにモードラインを追加する必要があります。これをお読みください： http://www.x.org/wiki/FAQVideoModes 正しい解像度で実行されているウィンドウがあるため、電源タップに関する部分は興味深いかもしれません。
/etc/X11/xorg.confのバックアップを取り、以下のlines.itを追加してください。
# VirtualBox generated configuration file
# based on /etc/X11/xorg.conf.
# XFree86 4 configuration created by pyxf86config
# Section "ServerLayout"
# Identifier "Default Layout"
# Screen 0 "Screen0" 0 0
# InputDevice "Mouse0" "CorePointer"
# InputDevice "Keyboard0" "CoreKeyboard"
# EndSection
Section "Files"
# RgbPath is the location of the RGB database. Note, this is the name of the
# file minus the extension (like ".txt" or ".db"). There is normally
# no need to change the default.
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Red Hat 6.0 and later now use a font server independent of
# the X server to render fonts.
RgbPath "/usr/X11R6/lib/X11/rgb"
FontPath "unix/:7100"
EndSection
Section "Module"
Load "dbe"
Load "extmod"
Load "fbdevhw"
Load "glx"
Load "record"
Load "freetype"
Load "type1"
Load "dri"
EndSection
# Section "InputDevice"
#
# # Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
# # Option "Xleds" "1 2 3"
# # To disable the XKEYBOARD extension, uncomment XkbDisable.
# # Option "XkbDisable"
# # To customise the XKB settings to suit your keyboard, modify the
# # lines below (which are the defaults). For example, for a non-U.S.
# # keyboard, you will probably want to use:
# # Option "XkbModel" "pc102"
# # If you have a US Microsoft Natural keyboard, you can use:
# # Option "XkbModel" "Microsoft"
# #
# # Then to change the language, change the Layout setting.
# # For example, a german layout can be obtained with:
# # Option "XkbLayout" "de"
# # or:
# # Option "XkbLayout" "de"
# # Option "XkbVariant" "nodeadkeys"
# #
# # If you'd like to switch the positions of your capslock and
# # control keys, use:
# # Option "XkbOptions" "ctrl:swapcaps"
# # Or if you just want both to be control, use:
# # Option "XkbOptions" "ctrl:nocaps"
# #
# Identifier "Keyboard0"
# Driver "kbd"
# Option "XkbModel" "pc105"
# Option "XkbLayout" "us"
# EndSection
# Section "InputDevice"
# Identifier "Mouse0"
# Driver "mouse"
# Option "Protocol" "IMPS/2"
# Option "Device" "/dev/input/mice"
# Option "ZAxisMapping" "4 5"
# Option "Emulate3Buttons" "yes"
# EndSection
# Section "Monitor"
# Identifier "Monitor0"
# VendorName "Monitor Vendor"
# ModelName "Unknown monitor"
# HorizSync 31.5 - 37.9
# VertRefresh 50.0 - 70.0
# Option "dpms"
# EndSection
# Section "Device"
# Identifier "Videocard0"
# Driver "vesa"
# VendorName "Videocard vendor"
# BoardName "VESA driver (generic)"
# EndSection
# Section "Screen"
# Identifier "Screen0"
# Device "Videocard0"
# Monitor "Monitor0"
# DefaultDepth 24
# SubSection "Display"
# Viewport 0 0
# Depth 16
# Modes "800x600" "640x480"
# EndSubSection
# SubSection "Display"
# Viewport 0 0
# Depth 24
# Modes "800x600" "640x480"
# EndSubSection
# EndSection
Section "DRI"
Group 0
Mode 0666
EndSection
Section "InputDevice"
Identifier "Keyboard[0]"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
Option "Protocol" "Standard"
Option "CoreKeyboard"
EndSection
Section "InputDevice"
Driver "mouse"
Identifier "Mouse[1]"
Option "Buttons" "9"
Option "Device" "/dev/input/mice"
Option "Name" "VirtualBox Mouse Buttons"
Option "Protocol" "explorerps/2"
Option "Vendor" "Oracle Corporation"
Option "ZAxisMapping" "4 5"
Option "CorePointer"
EndSection
Section "InputDevice"
Driver "vboxmouse"
Identifier "Mouse[2]"
Option "Device" "/dev/vboxguest"
Option "Name" "VirtualBox Mouse"
Option "Vendor" "Oracle Corporation"
Option "SendCoreEvents"
EndSection
Section "ServerLayout"
Identifier "Layout[all]"
InputDevice "Keyboard[0]" "CoreKeyboard"
InputDevice "Mouse[1]" "CorePointer"
InputDevice "Mouse[2]" "SendCoreEvents"
Option "Clone" "off"
Option "Xinerama" "off"
Screen "Screen[0]"
EndSection
Section "Monitor"
Identifier "Monitor[0]"
ModelName "VirtualBox Virtual Output"
VendorName "Oracle Corporation"
EndSection
Section "Device"
BoardName "VirtualBox Graphics"
Driver "vboxvideo"
Identifier "Device[0]"
VendorName "Oracle Corporation"
EndSection
Section "Screen"
SubSection "Display"
Depth 24
EndSubSection
Device "Device[0]"
Identifier "Screen[0]"
Monitor "Monitor[0]"
EndSection
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