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Old 06-17-2009, 04:40 AM   #1
i92guboj
Gentoo support team
 
Registered: May 2008
Location: Lucena, Córdoba (Spain)
Distribution: Gentoo
Posts: 4,036

Rep: Reputation: 372Reputation: 372Reputation: 372Reputation: 372
radeon and dual head, to xrandr or not to xrandr, that's the question


Today fglrx hit the nail once again. I updated to xorg-server 1.6 and now it doesn't work. Once again fglrx is behind everyone else (they already were behind everyone else in which regards the kernel).

I am trying to migrate to either radeon or radeonhd, and I am having a hard time with it, besides how easy they are supposed to be to set up and use. I have no idea if the problem is with xrandr, the driver, my card or anything else.

The driver mostly works, except for dri which causes massive corruption to the point of being unusable. However that's a separate issue.

My main problem here is that I can't use my two monitors. Whatever I do, and I've tried all I could for a couple of months now with and without xrandr, I can only get the two monitors to show a clone of the same desktop. I am really fed up with how *easy* xrandr is to set up and use so I figured I'd ask here.

These are my two latest xorg.conf files, the first one is supposed to let randr do the job. I get two cloned screens, which is useless for me. The second one is supposed to disable randr and use the tipical approach I always used with every single driver over the earth.

Code:
Section "ServerLayout"
	Identifier     "my_layout"
	Screen      0  "screen_philips" 0 0
	Screen         "screen_acer" LeftOf "screen_philips"
EndSection

Section "Files"
	FontPath "/usr/share/fonts/100dpi"
	FontPath "/usr/share/fonts/75dpi"
	FontPath "/usr/share/fonts/corefonts"
	FontPath "/usr/share/fonts/dejavu"
	FontPath "/usr/share/fonts/hunkyfonts"
	FontPath "/usr/share/fonts/intlfonts"
	FontPath "/usr/share/fonts/liberation-fonts"
	FontPath "/usr/share/fonts/misc"
	FontPath "/usr/share/fonts/terminus"
EndSection

Section "Monitor"
	Identifier	"acer"
	Option	    "DPMS" "true"
EndSection

Section "Monitor"
	Identifier	"philips"
	Option	    "DPMS" "true"
EndSection

Section "Device"
	Identifier  "ati2600"
	Driver      "radeon"
	BusID       "PCI:1:0:0"
	Option			"AccelMethod" "exa"
	Option			"ExaNoDownloadFromScreen"
	Option			"ExaNoUploadToScreen" 
	Option			"DRI" "off"
	Option			"ScaleType" "scale"
	Option			"Monitor-DVI-I_1/analog" "acer"
	#Option			"Monitor-DVI-I_1/digital" "acer"
	Option			"Monitor-DVI-I_2/analog" "philips"
	#Option			"Monitor-DVI-I_2/digital" "philips"
	Option			"RROutputOrder" "philips"
	#Option			"NoRandR"
EndSection

Section "Screen"
	Identifier "screen_philips"
	Device     "ati2600"
	Monitor    "philips"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Modes "1600x1200"
		Depth     24
	EndSubSection
EndSection

Section "Screen"
	Identifier "screen_acer"
	Device     "ati2600"
	Monitor    "acer"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Modes "1680x1050"
		Depth     24
	EndSubSection
EndSection

Section "Extensions"
        Option "Composite" "On"
EndSection
Section "ServerFlags"
        Option "AIGLX" "On"
EndSection
Section "dri"
   Mode 0666
EndSection
Code:
Section "ServerLayout"
	Identifier     "my_layout"
	Screen         "screen_philips" 0 0
        Screen         "screen_acer" LeftOf "screen_philips"
EndSection

Section "Files"
	FontPath "/usr/share/fonts/100dpi"
	FontPath "/usr/share/fonts/75dpi"
	FontPath "/usr/share/fonts/corefonts"
	FontPath "/usr/share/fonts/dejavu"
	FontPath "/usr/share/fonts/hunkyfonts"
	FontPath "/usr/share/fonts/intlfonts"
	FontPath "/usr/share/fonts/liberation-fonts"
	FontPath "/usr/share/fonts/misc"
	FontPath "/usr/share/fonts/terminus"
EndSection

Section "Monitor"
	Identifier	"acer"
	Option		"DPMS" "true"
EndSection

Section "Monitor"
	Identifier	"philips"
	Option		"DPMS" "true"
EndSection

Section "Device"
	Identifier		"ati2600"
	Driver			"radeon"
	BusID			"PCI:1:0:0"
	Option			"AccelMethod" "exa"
#	Option			"ExaNoDownloadFromScreen"
#	Option			"ExaNoUploadToScreen"
	Option			"DRI" "off"
#	Option			"ScaleType" "scale"
#	Option			"Monitor-DVI-I_1/analog" "acer"
#	Option			"Monitor-DVI-I_1/digital" "acer"
#	Option			"Monitor-DVI-I_2/analog" "philips"
#	Option			"Monitor-DVI-I_2/digital" "philips"
#	Option			"RROutputOrder" "philips"
	Option			"NoRandR"
EndSection

Section "Device"
	Identifier		"ati2600-1"
	Driver			"radeon"
	BusID			"PCI:1:0:0"
	Option			"AccelMethod" "exa"
	Option			"DRI" "off"
EndSection

Section "Screen"
	Identifier "screen_philips"
	Device     "ati2600"
	Monitor    "philips"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Modes "1600x1200"
		Depth     24
	EndSubSection
EndSection

Section "Screen"
	Identifier "screen_acer"
	Device     "ati2600-1"
	Monitor    "acer"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Modes "1680x1050"
		Depth     24
	EndSubSection
EndSection

Section "dri"
   Mode 0666
EndSection
I always get two cloned screens at 1600x1200.

This log shows randr in action.
http://pastebin.ca/1463140

Any help is much appreciated. And if you need more info just ask.

Thanks in advance for any hint.


Edited: I think that xrandr is just making fun of me. This is what I get from it:

Code:
$ xrandr
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 1920 x 1920
HDMI-0 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 430mm x 270mm
   1600x1200      60.0*+
   1680x1050      59.9 +   60.0  
   1280x1024      75.0     60.0  
   1024x768       75.0     72.0     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     66.7     59.9  
   720x400        70.1  
VGA-0 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 430mm x 270mm
   1600x1200      60.0*+
   1680x1050      59.9 +   60.0  
   1280x1024      75.0     60.0  
   1024x768       75.0     72.0     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     66.7     59.9  
   720x400        70.1  
DVI-0 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 360mm x 270mm
   1600x1200      70.0*+   65.0     60.0  
   1152x864       75.0 +   75.0  
   1920x1440      60.0  
   1280x1024      85.0     75.0  
   1280x960       85.0  
   1024x768       85.0     75.0     70.1     60.0  
   832x624        74.6  
   800x600        85.1     72.2     75.0     60.3  
   640x480        75.0     72.8     59.9  
   720x400        70.1
First, there should be two screens, not only one.

Second, I have no idea how it's seen so many devices attached to a single screen (but maybe it's my lack of understanding about xrandr).

Third, to make the party even funnier, there are only two monitors, not three. The two first devices are the same monitor, an acer which *should* work on wide mode at 1680x1050. The other is a philips CRT which works ok at 1600x1200.

I guess that the problem lies there. But I have no idea where to start looking.

Last edited by i92guboj; 06-17-2009 at 04:53 AM.
 
Old 06-17-2009, 05:48 AM   #2
i92guboj
Gentoo support team
 
Registered: May 2008
Location: Lucena, Córdoba (Spain)
Distribution: Gentoo
Posts: 4,036

Original Poster
Rep: Reputation: 372Reputation: 372Reputation: 372Reputation: 372
Just for the record. I got it to work finally with a Virtual screen. This is the valid xorg.conf in case it's useful for anyone:

Code:
Section "ServerLayout"
	Identifier     "my_layout"
	Screen         0 "screen_philips" 0 0
EndSection

Section "Files"
	FontPath "/usr/share/fonts/100dpi"
	FontPath "/usr/share/fonts/75dpi"
	FontPath "/usr/share/fonts/corefonts"
	FontPath "/usr/share/fonts/dejavu"
	FontPath "/usr/share/fonts/hunkyfonts"
	FontPath "/usr/share/fonts/intlfonts"
	FontPath "/usr/share/fonts/liberation-fonts"
	FontPath "/usr/share/fonts/misc"
	FontPath "/usr/share/fonts/terminus"
EndSection

Section "Device"
	Identifier	"ati2600"
	Driver			"radeon"
	BusID				"PCI:1:0:0"
	Option			"AccelMethod" "exa"
	Option			"DRI" "off"
	Option			"ScaleType" "scale"
	Option			"Monitor-DVI-0" "philips"
	Option			"Monitor-VGA-0" "acer"
	Option			"Monitor-HDMI-0" "acer"
EndSection

Section "Monitor"
	Identifier	"philips"
	Option			"DPMS" "true" 
	Option			"PreferredMode" "1600x1200"
	Option			"Position" "1680 0"
EndSection

Section "Monitor"
	Identifier	"acer"
	Option			"DPMS" "true"
	Option			"PreferredMode" "1680x1050"
	Option			"LeftOf" "philips"
EndSection

Section "Screen"
	Identifier "screen_philips"
	Device     "ati2600"
	Monitor    "philips"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Modes "1600x1200"
		Virtual  3280 1200
		Depth     24
	EndSubSection
EndSection
However I would really like to have two separate X sessions, one on each monitor, just like I used to have. It's easier to handle for me.
 
  


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