Ever since I found out that modern motherboards support dual head natively I had recently “upgraded” to such setup. Today however I have plugged in a ATI Radeon HD7450 yet I am facing some difficulties getting my old displays configuration just right.
Let me explain: I am a weirdo when it comes to my displays in the sense that one is a 16:9 and the other one a 4:3. Perhaps the weidest to some is how I set my 16:9 screen down 90 degrees in portrait mode.
Now that presentations have been made, that portait/regular setup was working fine until ATI upgrade, yet I believe that my video card is detected and working fine:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos PRO [Radeon HD 7450]
Subsystem: ASUSTeK Computer Inc. Caicos PRO [Radeon HD 7450]
Kernel driver in use: radeon
Speaking of that said problem, when I switch my 16:9 to portrait mode and Apply displays goes FUBAR. That screen becomes filled up with video artifacts while the 4:3 remains totally black. Reverting back to original settings I am now facing the video artifacts of my screen model and size on each of my displays.
Thanks in advance,