nicht angemeldet
Hi,
ich habe zwei exakt gleiche intakte 17"-TFTs direkt nebeneinander stehen und eine billige ATI-Dualhead-Grafikkarte mit einem VGA- und einem DVI-Ausgang. Ich verwende ein Mandriva-Linux mit xorg 6.9. Beide Bildschirme laufen einwandfrei mit jeweils einer Auflösung von 1280x1024. Der Bildschirm der per VGA-DVI-Adapter an der Grafikkarte hängt zeigt ein unangenehm unscharfes Bild. Ist es wahrscheinlicher, dass das am VGA-DVI-Adapter oder an meiner xorg-Konfiguration liegt? Wenn das erstere zutrifft, gibt es Adapter besser Qualität, oder benötige ich zur Problemlösung aufjedenfall zwei VGA-Ausgänge? Meine xorg-config, die ich nicht im Detaill erklären kann, sondern eigentlich nur aus dem Gentoo-Wiki (http://mg.pov.lt/xorg.conf) geklaut habe (natürlich habe ich einige Punkte angepasst, damit sie für meine Anwendung passt), sieht so aus: (der unscharfe Bildschirm ist screen1)
ection "Module"
Load "GLcore"
Load "bitmap" Load "ddc" Load "dri" Load "extmod" Load "freetype" Load "glx" Load "int10" Load "type1" Load "vbe" EndSection
Section "InputDevice" Identifier "Generic Keyboard" Driver "keyboard" Option "CoreKeyboard" Option "XkbModel" "ltcd" Option "XkbLayout" "de" Option "XkbOptions" "compose:rwin" EndSection
Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" Option "Device" "/dev/mouse" Option "Protocol" "ImPS/2" Option "Emulate3Buttons" "true" Option "ZAxisMapping" "4 5" EndSection
Section "Device" Identifier "ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Driver "ati" BusID "PCI:1:0:0" Option "DynamicClocks" "on" Option "backingstore" "on" Option "AllowGLXWithComposite" "true" EndSection
Section "Device" Identifier "MergedFB ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Driver "ati" BusID "PCI:1:0:0" Option "DynamicClocks" "on" Option "backingstore" "on" Option "AllowGLXWithComposite" "true" Option "MergedFB" "true" Option "CRT2Position" "RightOf" # This allows X to use MergedFB if the external monitor is not connected # when I start X. The ranges are taken from DDC values of the CTX monitor # I use at the office; as listed in Xorg.log. Option "CRT2HSync" "30-80" Option "CRT2VRefresh" "59-75" # The next line lets me switch between dual-head and several clone modes # of varying resolutions with xrandr. #Option "MetaModes" "1024x768-1280x1024 1024x768-1024x768 1024x768+1280x1024 1280x1024 1024x768 800x600 640x480" Option "MetaModes" "1280x1024-1280x1024 1280x1024" # My laptop's internal LCD is 100dpi. The external LCD is designed # for 1280x1024, and the picture is streched. The radeon driver computes # its DPI by looking at the physical size of the external LCD, and gets # ~65 DPI. I want to override that. Option "MergedDPI" "100 100" # This should speed up RENDER acceleration and perhaps make compositing not # so terribly slow. What it does, is make EVERYTHING slow.
Option "AccelMethod" "EXA"
EndSection
Section "Device" Identifier "MergedFB2 ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Driver "ati" BusID "PCI:1:0:0" Option "DynamicClocks" "on" Option "backingstore" "on" Option "AllowGLXWithComposite" "true" Option "MergedFB" "true" Option "CRT2Position" "RightOf" # This allows X to use MergedFB if the external monitor is not connected # when I start X. The ranges are taken from DDC values of the CTX monitor # I use at the office; as listed in Xorg.log. Option "CRT2HSync" "30-81" Option "CRT2VRefresh" "56-76" # The next line lets me switch between dual-head and several clone modes # of varying resolutions with xrandr. #Option "MetaModes" "1024x768-1280x1024 1024x768-1024x768 1024x768+1280x1024 1280x1024 1024x768 800x600 640x480" Option "MetaModes" "1280x1024-1280x1024 1280x1024" # A newer version of the radeon driver has an option that disables vertical # scrolling for the 1024x768 part. Option "MergedNonRectangular" "true" # In 1024x768-1280x1024 mode the DPI is correct (100), but in all other # modes it is weird. Try to override Option "MergedDPI" "100 100" EndSection
Section "Device" Identifier "Screen0 ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Driver "ati" BusID "PCI:1:0:0" Option "DynamicClocks" "on" Option "backingstore" "on" Option "AllowGLXWithComposite" "true" Screen 0 EndSection
Section "Device" Identifier "Screen1 ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Driver "ati" BusID "PCI:1:0:0" Option "DynamicClocks" "on" Option "backingstore" "on" Option "AllowGLXWithComposite" "true" Screen 1 EndSection
Section "Monitor" Identifier "Second Monitor" Option "DPMS" VendorName "Plug'n Play" ModelName "F-417" HorizSync 24-80 VertRefresh 49-75
# Monitor preferred modeline (60.0 Hz vsync, 64.0 kHz hsync, ratio 5/4) ModeLine "1280x1024" 108 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
# TV fullscreen mode or DVD fullscreen output. # 768x576 @ 79 Hz, 50 kHz hsync ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630
# 768x576 @ 100 Hz, 61.6 kHz hsync ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616 EndSection
Section "Monitor" Identifier "Generic Monitor" Option "DPMS" VendorName "Plug'n Play" ModelName "F-417" HorizSync 24-80 VertRefresh 49-75
# Monitor preferred modeline (60.0 Hz vsync, 64.0 kHz hsync, ratio 5/4) ModeLine "1280x1024" 108 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
# TV fullscreen mode or DVD fullscreen output. # 768x576 @ 79 Hz, 50 kHz hsync ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630
# 768x576 @ 100 Hz, 61.6 kHz hsync ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616 EndSection
Section "Screen" Identifier "Default Screen" Device "ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Monitor "Generic Monitor" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 4 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 8 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 15 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 16 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 24 Modes "1280x1024" EndSubSection EndSection
Section "Screen" Identifier "MergedFB Screen" Device "MergedFB ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Monitor "Generic Monitor" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 4 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 8 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 15 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 16 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 24 Modes "1280x1024" EndSubSection EndSection
Section "Screen" Identifier "MergedFB2 Screen" Device "MergedFB2 ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Monitor "Generic Monitor" DefaultDepth 24 SubSection "Display" Depth 24 Modes "1280x1024" EndSubSection EndSection
Section "Screen" Identifier "Screen0" Device "Screen0 ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Monitor "Generic Monitor" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 4 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 8 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 15 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 16 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 24 Modes "1280x1024" EndSubSection EndSection
Section "Screen" Identifier "Screen1" Device "Screen1 ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)" Monitor "Second Monitor" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 4 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 8 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 15 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 16 Modes "1280x1024" "1024x768" EndSubSection SubSection "Display" Depth 24 Modes "1280x1024" EndSubSection EndSection
Section "ServerLayout" Identifier "DefaultLayout" Screen "Default Screen" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection
Section "ServerLayout" Identifier "MergedFBLayout" Screen "MergedFB Screen" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection
Section "ServerLayout" Identifier "MergedFB2Layout" Screen "MergedFB2 Screen" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection
Section "ServerLayout" Identifier "XineramaLayout" Screen "Screen0" Screen "Screen1" LeftOf "Screen0" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" Option "Xinerama" "true" EndSection
Section "ServerLayout" Identifier "TwoHeadLayout" Screen "Screen0" Screen "Screen1" LeftOf "Screen0" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection
Section "DRI" Mode 0666 EndSection
Section "ServerFlags" Option "DefaultServerLayout" "MergedFB2Layout"
If enabled, lets you deactivate KB/Mouse grabs with Ctrl+Alt+KP_Divide
Option "AllowDeactivateGrabs" "on"
If enabled, lets you kill clients that grab the server with Ctrl+Alt+KP_Multiply
Option "AllowClosedownGrabs" "on"
EndSection
Section "Extensions" Option "backingstore" "true" Option "Composite" "Enable" Option "RENDER" "Enable" EndSection
Schöne Grüße Julian