how to setup dual monitors with big desktop on ati card
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Re : how to setup dual monitors with big desktop on ati card
Trying to enable big desktop for two monitors on an ATI Redeon card that has one vga and one dvi output port.
Have been fighting with this for few hours now. After much surfing and searching through forums and irc :-)
Here is my xorg.conf. It's basically a copy from somewhere I found.
Any clues/ideas? No idea what I'm doing wrong.
_____________ Snip Snip... old Xorg.conf Quote removed here _______________________
..... Oh yes, I'm on Ubuntu 8.10 with fglrx driver. And I've tried this with compiz on and off.
Any pointers will be highly appreciated.
I'm not sure if you found an answer to your Xorg file issue yet .
But , seeing as i have an ATI 9550 card [dual head] 256 megs vram ...
etc, etc .
I have a working dualhead layout working on FC9, using 2 LG screens.
both are L1720B's [ analogue type ]
As you asked for a working Xorg.conf file to work with here goes.
Note Rizwan ... it is using the fglrx driver Not the ATI driver in the Section "Device" area.
Also note the BusID notation in the same areas. they are not quite the same. ok... and if your system sees the card output differently than mine does, you can change the LeftOf in the "ServerLayout" to RightOf...[ that will swap the monitors virtualy , left one for the right one ].
Also note that I am using "DualHead" "True" rather than "Xinerama" "on" to get the desired screen setting. and also take note that on Screen 1 .. the View port is 1024 0 not 0 0 as it is on Screen 0, This is because the right hand screen starts at X=1024 pixels away from the upper left corner of the left hand screen,which is x=0,y=0 [ the bottom of both screens is 768 pixels down from the top ], so you get 1024 x 768 for screen size for both... and thus with 2 , the virtual size becomes 2048x 768 pixels.
Ok so I am long winded ...lol
Don't forget to back up your original, before you use this one , eh ...
So make sure you change those, to the values that will work for your monitors . or you may get some boot issues.
if you do get boot issues ,by forgetting to change them... , you can fix it as root in run level 3
To do that ,,, when grub starts up and says booting Fedora kernel in xxx..
seconds tap the space bar to get the grub selector open ... select the kernel you are using . press the A key .. then press the <space bar > and type 3
then the end of the line will change from ,,,, rhgb /quiet to rhgb /quiet 3.
that will boot you to run level 3
login as root
then type in vi xorg.conf
edit your xorg.conf file
save your file
then cd /
init 5 or telinit 5 and your GUI log in screen should load
as it should as dual screen [ span mode ]
If you dont know how to use VI , you can find out how in the vi man pages
Yep.I used to do that on my Fed 8 install and it worked really well ,,[ same vid card ATI 9550 ,, etc].
What I did was, run aticonfig --initial . then boot to GUI login .
then rebooted to level 3, [ so X wasnt running , then do as you said , aticonfig --dtop=horizontal ], and all was good .
But , with the way Fed9 has the video layout setup . I found that didn't work for me so well. it kept coming up as cloned ,and if you ran the display app for your distro , it would go through the routine of multi-monitor setup ,config ,,,and when I get to the point where all is set ,and go to click apply .... [ survey SAYS ... baaaaahhh ] lol
the app wouldn't apply it ,,not even as root.
So that is why i suggested using the xinerama on , clone off and Dualhead=true scenario.
so folks , if dualhead=true . isnt your cup of tea ,, then as nmindfulawe said, try that method.
if your spin of Fed9 is different than mine [ mine was at the time,straight KDE , no Gnome]
then try aticonfig --dtop=horizontal
and see if you like that better .