Arch Linux

instantaphex

Member

Registered: 2012-07-07

Posts: 67

[SOLVED] Dual Monitor Issue...

I just bought a new monitor today and tried to connect both.  I've been having some weird issues.  I've managed to get them both working, however, the older smaller monitor doesn't seem to want to refresh correctly.  When I drag things over it leaves trails of whatever was dragged. The close, maximize, and minimize have dissapeared from all windows in gnome as well. I edited my xorg.conf file to allow for the other monitor.  Here is my xorg.conf:

Section "ServerLayout"
	Identifier     "aticonfig Layout"
	Screen      0  "aticonfig-Screen[0]-0" 0 0
EndSection

Section "Module"
EndSection

Section "Monitor"
	Identifier   "aticonfig-Monitor[0]-0"
	Option	    "VendorName" "ATI Proprietary Driver"
	Option	    "ModelName" "Generic Autodetecting Monitor"
	Option	    "DPMS" "true"
EndSection

Section "Monitor"
	Identifier	"Second Monitor"
	Option	    "VendorName" "ATI Proprietary Driver"
	Option	    "ModelName" "Generic Autodetecting Monitor"
	Option	    "DPMS" "true"
EndSection

Section "Device"
	Identifier  "aticonfig-Device[0]-0"
	Driver      "fglrx"
	BusID       "PCI:1:0:0"
EndSection

Section "Screen"
	Identifier "aticonfig-Screen[0]-0"
	Device     "aticonfig-Device[0]-0"
	Monitor    "aticonfig-Monitor[0]-0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Virtual 3200 1080
		Modes "1920x1080" "1280x1024"
	EndSubSection
EndSection

I added to Section "Screen" the Virtual and Modes settings but I feel I'm missing something here.  Should I add Identifier, Device, and Monitor as well?  It's looking pretty jacked up currently.  Any help would be appreciated.  Thanks!

jb

Last edited by instantaphex (2013-04-21 15:54:39)

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,497

Website

Re: [SOLVED] Dual Monitor Issue...

I'd recommend renaming/removing that xorg.conf, at least temporarily, and get it working with xrandr from a terminal.

Given the symptoms, it sounds less like an X issue, and more like a window manager issue.  Start up in a normal single monitor X session, open a terminal, and run xrandr to see if it will work.

EDIT: also, please provide information about the video driver(s) you are using, and your window manager.

Last edited by Trilby (2013-04-21 10:43:13)

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

instantaphex

Member

Registered: 2012-07-07

Posts: 67

Re: [SOLVED] Dual Monitor Issue...

I'm using gnome3/compiz with the proprietary catalyst driver.  xrandr seemed to work for me using the following for anyone that is interested:

$ xrandr --auto --output CRT1 --mode 1280x1024 --right-of DFP7

I'm not sure why xrandr calls my monitors such strange things.  the 1280x1024 monitor is not a crt but whatever... it works.

Thanks trilby.