[LGA 1155 motherboards] Multi-Monitor does NOT work when 1 monitor uses Intel GPU and another monitor uses Nvidia GPU -- (Sandy Bridge & Ivy Bridge iGPU)

Malcolm Turmel malcolm.turmel at gmail.com
Mon Jun 11 06:16:58 UTC 2012


https://en.wikipedia.org/wiki/LGA_1155

The above article lists all the LGA 1155 motherboards which "Allows
using built-in GPU" also known as Integrated GPU / iGPU. But basically
it is talking about the Integrated GPU which comes with the Intel
Sandy Bridge and Ivy Bridge microprocessors. As you can see, (except
for the lone exception P67), all motherboards support using iGPU along
with a Dedicated GPU card.


It basically allows using the Integrated GPU along with a Dedicated
GPU like Nvidia or ATI.


Using my MSI H67 Motherboard, and Windows 7 was able to successfully
make a multi-monitor set up (with Extended mode, so we can get more
work done faster):
One monitor was connected to the VGA output on the Nvidia GT 520 GPU.
The other monitor was connected to the VGA output on the motherboard
(Core i3 - integrated graphics).

The same multi-monitor setup unfortunately fails in Fedora.

http://www.smolts.org/client/show_all/pub_9b118418-5637-4127-9c4b-506fd6bfb436

I know some of you will suggest getting a new monitor, or getting a
Convertor to convert DVI to VGA or HDMI to VGA.
But that's not the point, which is that Fedora is not keeping with the
technological improvements.

For example in another build, with an ASUS Z68 motherboard there was a
new feature called Virtu GPU Virtualization Software: which basically
makes use of the iGPU and the Dedicated GPU to improve performance and
quality: http://www.lucidlogix.com/product-virtu-gpu.html


I have filed a bug https://bugzilla.redhat.com/show_bug.cgi?id=830619
for the Multi-monitor problem right now.


Also any suggestions for the Motherboard Manufacturer for my next few
builds that are going to be due within the next few months? I had
rather buy from a manufacturer that releases Linux drivers for their
products


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