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  • Refresh rates on dual monitor/big desktop setup

    Hi,

    My old Radeon 9800 died a couple of days ago, so i bought a Radeon HD3650 in its stead. I got most things working, somehow.

    However I still have some problems with my refresh rate in the secondary display of the dual monitor setup... I have two LCDs, the primary is plugged in to a DVI port and the other to a VGA one. The problem is that the secondary display (older, smaller monitor) runs at a refresh rate of 75Hz and consequently it is quite blurry. I need to find a way to make it work at 60Hz again.

    I fumbled around with xorg.conf and with the Catalyst Control Center and even tried KDE's System Settings, but none worked.

    Here's xorg.conf. I'm well aware that it's as far as possible from being well written, with several autoconf tools writing to it from a time to time and with me editing it without knowing how to...

    Code:
    Section "ServerLayout"
    	Identifier     "Default Layout"
    	Screen         "Default Screen" 0 0
    	InputDevice    "Generic Keyboard"
    	InputDevice    "Configured Mouse"
    EndSection
    
    Section "Files"
    
    	# path to defoma fonts
    	FontPath     "/usr/share/X11/fonts/misc"
    	FontPath     "/usr/share/X11/fonts/cyrillic"
    	FontPath     "/usr/share/X11/fonts/100dpi/:unscaled"
    	FontPath     "/usr/share/X11/fonts/75dpi/:unscaled"
    	FontPath     "/usr/share/X11/fonts/Type1"
    	FontPath     "/usr/share/X11/fonts/100dpi"
    	FontPath     "/usr/share/X11/fonts/75dpi"
    	FontPath     "/usr/share/fonts/X11/misc"
    	FontPath     "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
    EndSection
    
    Section "Module"
    	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      "kbd"
    	Option	    "CoreKeyboard"
    	Option	    "XkbRules" "xorg"
    	Option	    "XkbModel" "pc105"
    	Option	    "XkbLayout" "us,il"
    #	Option	    "XkbOptions" "lv3:ralt_switch"
    	Option	    "XkbOptions" "grp:alt_shift_toggle,grp_led:scroll"
    EndSection
    
    Section "InputDevice"
    	Identifier  "Configured Mouse"
    	Driver      "mouse"
    	Option	    "CorePointer"
    	Option	    "Device" "/dev/input/mice"
    	Option	    "Protocol" "ExplorerPS/2"
    	Option	    "ZAxisMapping" "4 5"
    	Option	    "Emulate3Buttons" "true"
    EndSection
    
    
    
    Section "Monitor"
    	Identifier   "LG L1932TQ"
    	HorizSync    30.0 - 83.0
    #	VertRefresh  56.0 - 75.0
    	VertRefresh  56.0 - 60.0
    	Option	    "DPMS"
    EndSection
    
    Section "Monitor"
    	Identifier   "L1706"
    	Option	    "VendorName" "ATI Proprietary Driver"
    	Option	    "ModelName" "L1706"
    	HorizSync    30.0 - 83.0
    	VertRefresh  50.0 - 60.0
    	Option	    "DPMS" "true"
    EndSection
    
    Section "Device"
    	Identifier  "ATI RADEON 9800"
    	Driver      "fglrx"
    	Option	    "UseFBDev" "true"
    	Option	    "DesktopSetup" "horizontal"
    	Option	    "OverlayOnCRTC2" "1"
    	Option	    "Mode2" "1600x1200,1280x1024,1152x864,1024x768,800x60"
    	Option	    "VideoOverlay" "on"
    	Option	    "OpenGLOverlay" "off"
    	BusID       "PCI:1:0:0"
    EndSection
    
    Section "Device"
    	Identifier  "aticonfig-Device[1]"
    	Driver      "fglrx"
    	BusID       "PCI:1:0:0"
    	Screen      1
    EndSection
    
    Section "Screen"
    	Identifier "Default Screen"
    	Device     "ATI RADEON 9800"
    	Monitor    "LG L1932TQ"
    	DefaultDepth     24
    	SubSection "Display"
    		Depth     1
    		Modes    "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth     4
    		Modes    "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth     8
    		Modes    "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth     15
    		Modes    "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth     16
    		Modes    "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth     24
    		Modes    "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
    	EndSubSection
    EndSection
    
    Section "Screen"
    	Identifier "aticonfig-Screen[1]"
    	Device     "aticonfig-Device[1]"
    	Monitor    "aticonfig-Monitor[1]"
    	DefaultDepth     24
    	SubSection "Display"
    		Viewport   0 0
    		Depth     24
    	EndSubSection
    EndSection
    
    Section "DRI"
    	Mode         0666
    EndSection
    
    Section "Extensions"
    	Option	    "Composite" "Disable"
    EndSection
    I am using the latest fglrx (manually installed from AMD's website), on the latest Ubuntu.

    Here is the information on the secondary monitor, from the CCC:
    Display Name: 2. HP L1706
    Graphics Adapter: ATI radeon etc.
    Maximum resolution: 1280 x 1024
    Maximum Refresh Rate: 75Hz
    Connector: VGA

    Could you provide some guidance? Thanks!
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