Dual Monitor not working, Mint 5 beta 048 (SOLVED)

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Dual Monitor not working, Mint 5 beta 048 (SOLVED)

Postby madmanmick on Mon May 26, 2008 10:56 pm

I am a new user to Mint (on beta 048). I am also a new user to linux, and have tried several other distros but with limited success. I checked out an online review that spoke wonders of Mint, and from my first install it has all gone very well, except for one niggling issue - my dual screen doesn't work properly! When I was in liveCD mode, MINT correctly detected both my monitors, but only allowed me to run them in clone mode. Once I installed Mint (both beta 032 and 048), and of course after using Envy to install the latest ATI drivers which all work fine, Mint will no longer detect my second monitor. However, the second monitor is still displaying a clone image of the first monitor, albeit at a widescreen resolution, which results in the second screen panning to fit the desktop in.
These are my PCs specs:
Intel E4500
GPU: ATI radeon hd3850 256mb
2gb 800mhz ram
Monitor 1: Viewsonic 22" widescreen (1680x1050)
Monitor 2: Samsung 19" 4:3

I checked out my xorg.conf and it seems to be quite lacking on system and device details, and only provisions for one monitor, with the device stated as 'configured monitor'. This seems woefully inadequate. Here is my xorg.conf (Without the junk at the top listed):

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
Defaultdepth 24

Section "Device"
Identifier "Configured Video Device"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
Driver "fglrx"

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Emulate3Buttons" "true"

Section "ServerLayout"
Identifier "Default Layout"
screen "Default Screen"

Section "Monitor"
Identifier "Configured Monitor"

Section "Extensions"
Option "Composite" "Enable"

In my eyes, it would seem that xorg has not correctly listed my video device as an ati hd3850, nor the model of my monitor, and there is no listing at all for the second monitor. How can I go about fixing this?
Last edited by madmanmick on Wed Jun 04, 2008 10:10 am, edited 1 time in total.
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Re: Dual Monitor not working, Mint 5 beta 048

Postby newW2 on Tue May 27, 2008 12:50 am

A search on this forum came up with these results. I don't know if you saw it, but this one (dual monitors+ATI) in particular looked interesting.
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Re: Dual Monitor not working, Mint 5 beta 048

Postby madmanmick on Tue May 27, 2008 6:40 am

Yeh I checked that one out, didn't help too much. I found out that there is a Catalyst Control Centre (Didn't know there was one beforehand), this allowed me to get it working in Big Desktop mode. I like this, but i'm not sure i like having the wallpaper stretched across both monitors. Is it possible to have it run in dual screen with an extended desktop, having wallpaper for each monitor that is correctly scaled? I am also finding that Firefox 3 rc1 seems to be crashing when I watch videos on YouTube, it usually happens once every two videos (In case no one had picked up on this). Firefox 3 rc1 worked fine in Windows for me.
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Re: Dual Monitor not working, Mint 5 beta 048 (SOLVED)

Postby taomaster on Mon Jul 07, 2008 5:57 pm

SLED 10.2 supports dual monitor setup. You can clone the default monitor or have one nice big monitor. I'm using two 22 inch lcd monitors and SLED 10.2 works. Opensuse 11 does not work :cry: or Ubuntu...

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