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Upon trying to install ANY form of Linux (tried Ubuntu 13.04, Mint 15 Cinnamon, Fedora 18 KDE), I have a few problems:

First off, I get EXTREME lag in both of their Live CDs. It starts to completely hang for minutes at a time, and then eventually the screen goes black and never displays anything again.

Here are my specs:

ASUS P8P67 Pro Rev 3.1 Motherboard (Latest BIOS 8/6/2013)
Intel i7 2600K Processor
128GB OCZ SOLID3 SSD (Latest FW 8/6/2013)
1TB Seagate Barracuda 7200RPM HDD
NVIDIA GeForce GTX 580
Yamakasi Catleap Q270 (2560x1440 @ 60Hz) via Dual-Link DVI

Secondly: I've been able to get the Operating System installed (somehow, one of Ubuntu's liveCD options as well as Fedora KDE I can make it through without lag) but then when I do install, I have to install the nvidia driver ASAP through terminal, or I get the extreme lag again. Once I install the driver, however, I just get a black screen upon reboot.

If this question is a duplicate and I missed it, please let me know and I will be happy to remove it.

I believe the problem lies with the Graphics driver, card, or my monitor itself. My problem happens even in an installed version of Linux/Ubuntu, not just the live CD. I've tried getting the nvidia driver and following a plethora of guides on this site, but they all lead in me getting a black screen on bootup and having to Ctrl+Alt+F1 to get a terminal. If anyone has any suggestions or anything, I'd greatly apperciate it.

I'm aware of two open issues with my graphics card for Ubuntu(Nouveau) specifically: 1 and 2, but the workarounds do NOT work for me. And also, the nvidia driver is unrelated to these - installing it is actually the suggested workaround, which in fact makes my problem worse.

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up vote 2 down vote accepted

After weeks and weeks of messing around, I was finally able to figure out my problem! It was, in fact, the monitor.

I followed the guide here and manually edited my xorg.conf file, and now everything works perfectly!

Adding the content here just in case the forums get archived:

# This section defines the Catleap (HiRes) monitor.  
# I just left this section completely the same as in the example

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Shimian"
    ModelName      "QHD270"
    HorizSync      88.8
    VertRefresh    59.5
    Option         "DPMS"
    Modeline       "2560x1440" 241.50  2560 2608 2640 2720  1440 1443 1448 1481 +hsync -vsync
    DisplaySize    597 336  

# This section defines the video card, I didn't change anything here either
Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTX 460"

# This is the section I changed
# The BIGGEST issue I had, was figuring out what was on DFP-0, DFP-1 and DFP-2 (which are the dvi/hdmi outputs)
# In MY system, DFP-0 is the "primary" DVI output
# and DFP-1 is the mini-HDMI output
# and DFP-2 is the 2ndary DVI output
# So I want my Catleap on DVI-0 and the Asus twinview monitor on the DFP-2 (so I had to change my cables)
Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "NoLogo" "True"
    Option         "TwinView" "1"
# Leave this as DFP-0, which is where the Catleap(hires) monitor is plugged into.
# This (I believe) tells the system what the "primary" display is in the twin view
    Option         "TwinViewXineramaInfoOrder" "DFP-0"
    Option         "UseEDID" "False"
    Option         "UseEDIDDPI" "False"
    Option         "UseEDIDFreqs" "False"
    Option         "ExactModeTimingsDVI" "True"
# This is the only other line I had to change from the example
# DFP-0: 2560x1440_60 +0 +0   <--- This line is the "primary" display on DFP-0 (the Catleap HiRes)
# DFP-2: 1920x1080 +2560 +0   <--- This was for the 2nd monitor, resolution and offset.
# Don't forget the comma between the two monitors
    Option         "metamodes" "DFP-0: 2560x1440_60 +0 +0, DFP-2: 1920x1080 +2560+0"
    SubSection     "Display"
        Depth       24

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    Option         "Xinerama" "0"
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