Ubuntu 20.04 Nvidia 3060 setup 3 Monitors with 1 X Server (Surround?)

Yeah this should be fine. Just enable Xinerama in the nVidia drivers to link the screen screens into a single space. I've done this single, dual and triple GPU before, with each card running several screens.

My Thanks! How would I go about enabling Xinerama?

Click the checkbox ;)

Install nVidia proprietary. Launch the settings (nvidia-settings) > X Server Display Configuration > (under the drag and drop screen layout) click the checkbox labeled Enable Xinerama > restart X. (added a pic of my panel for reference) https://imgur.com/a/WHAV0Qa

Thank you JXT,

I used the PPA to install the proprietary drivers and get no check box, did I do something wrong?
https://drive.google.com/file/d/1PKSl9ZAamfbailwE5cIO8tfPTnP5yE8w/view?usp=sharing

Don't install from nVidia's site. I mean you can but it will be a pain. Using Jockey/Software center is best. I'm not sure what PPA you are using but stock Ubuntu should have the drivers just fine. Purge the PPA you've added and check the software and updates/sources for "Additional Drivers" You just need to enable them over the Nouveau.

You know what, I bet it's just hiding it because you only have one GPU...which makes me a dunce. Or perhaps the driver panel is a dunce since Xinerama isn't just a multiGPU thing. OK soo...

In your server layout you will want to add

    Option "Xinerama" "1"

Then in your screen section something like
    Option "metamodes" "OUTPUT(DP-port#/HDMI/DVI/ETC): nvidia-auto-select +1920+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}, "OUTPUT(DP-port#/HDMI/DVI/ETC): nvidia-auto-select +3840+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}, "OUTPUT(DP-port#/HDMI/DVI/ETC): nvidia-auto-select +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}"

So basically get the order you want your screens, note the port they are on to replace my silly OUTPUT(DP-port#/HDMI/DVI/ETC) Then you adjust the +number+number bit to set where they are. There is a "LEFT OF" "RIGHT OF" type syntax you can use too if you don't want to use pixels/absulutes. In theory the metamodes should already be set for you...just no Xine. That said the driver should have added Option "Xinerama" "0" to your xorg.conf when it wrote it so in theory you may just need to change the 0 to a 1 and restart your Xserver. ;)

Terribly sorry for forgetting the panel hides the option in your situation.

No apologies necessary, you have been very helpful and stmbling blocks are always part of the learning process! I did say I was willing to make mistakes and learn! 8)

I think this is my server layout from /etc/x11 xorg.conf? (err umm how do i make this editable heh)

I can see the Option "Xinerama" "1" and I assume the screen section your referring to is the final section (i could use some help with that one if you have any insights).

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 470.57.01

Section "ServerLayout"
    Identifier "Layout0"
    Screen 0 "Screen0" 0 0
    InputDevice "Keyboard0" "CoreKeyboard"
    InputDevice "Mouse0" "CorePointer"
    Option "Xinerama" "0" (change this to "1" correct?)
EndSection

Section "Files"
EndSection

Section "Module"
    Load "dbe"
    Load "extmod"
    Load "type1"
    Load "freetype"
    Load "glx"
EndSection

Section "InputDevice"

    # generated from default
    Identifier "Mouse0"
    Driver "mouse"
    Option "Protocol" "auto"
    Option "Device" "/dev/psaux"
    Option "Emulate3Buttons" "no"
    Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier "Keyboard0"
    Driver "kbd"
EndSection

Section "Monitor"

    # HorizSync source: edid, VertRefresh source: edid
    Identifier "Monitor0"
    VendorName "Unknown"
    ModelName "LG Electronics LG Ultra HD"
    HorizSync 135.0 - 135.0
    VertRefresh 40.0 - 61.0
    Option "DPMS"
EndSection

Section "Device"
    Identifier "Device0"
    Driver "nvidia"
    VendorName "NVIDIA Corporation"
    BoardName "NVIDIA GeForce RTX 3060"
EndSection

Section "Screen" (this one?)

# Removed Option "nvidiaXineramaInfoOrder" "DFP-0"
# Removed Option "metamodes" "DP-2: 2560x1440 +2560+0, HDMI-0: nvidia-auto-select +5120+0, HDMI-1: nvidia-auto-select +0+0"
    Identifier "Screen0"
    Device "Device0"
    Monitor "Monitor0"
    DefaultDepth 24
    Option "Stereo" "0"
    Option "nvidiaXineramaInfoOrder" "DFP-4"
    Option "metamodes" "DP-2: 2560x1440 +2560+0 {AllowGSYNCCompatible=On}, HDMI-0: nvidia-auto-select +5120+0, HDMI-1: nvidia-auto-select +0+0"
    Option "SLI" "Off"
    Option "MultiGPU" "Off"
    Option "BaseMosaic" "off"
    SubSection "Display"
        Depth 24
    EndSubSection
EndSection

Thank you JXT, you really have been a wonderful help.
-sjhotz

Yeah flip that 0 to a 1 and restart your x server, cross fingers and you should be good.

DERP! Looks like I screwed something up, I just enabled Xinerama and rebooted and I get a black screen with mouse, time to do some digging!

I don't think YOU screwed anything. Part of why I'm on here reading is because I was attempting to move from 18.04.5 to 20.04 and there are some BIG problems but I can't determine if it's kernel or xorg. I suspect something with xorg or the compositor can't figure things out thus black screens because nothing knows how to start. I've been dealing with this in various forms across many machines the last few days. Has me in quite a panic.

Which is to say I used to have some nutty configs. I had a single R9 270x which 3 screens in Xine (just like you want), then I had dual GPU with one GPU screens in Xine the other GPU screens separated...then a triple GPU set up where all screens where just normal. The dual GPU one Xine one not thing stopped working a while back and I never could figure out if there was a syntax change or what. Now basic things on 20 and 21 (and other non Debian distro) aren't working which makes me think kernel or XOrg updates...or odd things being done in the system for XOrg as everyone plans to transition to Wayland.

Hmm, perhaps switching to an older release (perhaps LTS) will assist things, i'll try that and report back.

There are no older releases to move to anymore...that's the problem! I honestly had an "OH CHIT" moment the other day when I realized LTS is no longer 5 years and 18 is EOL! I was like holy crap I need to update...but updating has been more like a nightmare downgrade because all these display issues. I can take my current xorg.conf slap it in 20.04 (and 21.04) and watch my machine explode...exact same nVidia driver!

Oh Crap! Ok gonna Pop OS and see what I get.

Pop_OS is the only one semi working for me on 20.04 but it's still not really "working." Worth a try and easier given the drivers are in the live install. You can tweak and just kill xorg to test. Keep me posted.

Interesting!

Installed the Nvidia version of POP OS, ran update and upgrade prior to running installer after booting from USB.

1st boot already had Nvidia X Server Settings available, all I had to do was re-arrange monitor layout and the "X Screen 0" was already at 7680x1440!

Gonna try installing steam and see what I get, but websites still default to full screen per monitor not the full 7680x1440.

Yep definitly something wrong with X-Server, made the Xinerama change to 1 and booted to blank screen.

Did you peek the xorg.conf when it defaulted as you wanted?

I did'nt, i just rebooted. I'll try again and take a look.

It feels cheesy but anywhere you can gleen some insight. Yesterday I also tried Endeavor OS because it also has nVidia loaded live install. Though I have to say this is kinda disheartening because your issue is pretty straight forward but if it's not working correctly for you something has clearly changed but I can't find what/where.

I might be MIA (not that I'm overly helpful to you atm). I got a few machines updated/fixed so now I'm going to try some butchering on my workstation where I am also having these gibbed display issues before I hit the servers...

Well I've been churning away because honestly I think solving your issue will give me some insight to my own issues because now what looks like my issue being complex and perhaps bleeding edge (even though I've been doing this since Windows 2000) and your issue *should* be super simple it looks like something somewhere has changed for the borked. I looked at some old xorg.conf and honestly the syntax is all there...it just doesn't work anymore. Feature depreciation, behavior change, government conspiracy to make me waste time a money!? Elvis is ALIVE MAN I SAW HIM!

Jokes aside I had been trying to make a conf for you so you could just change your GPU ports and resolutions and plop it into play but nothing works as expected. It works in that x runs, no errors but nothing behaves like it's a single screen vs 3. I had hoped if I could whip something up for you I could also figure out why Ubuntu doesn't separate the GPU's anymore and all the rest of it but I've been at it so long everything feels like a blurry smeary vague semblance of nothing. I need a break, but I need to get it done...

I am experiancing the same, no matter which distro I try, something has definitly changed within X. I have found I am able to use a combination of the built in display settings for arraignment of the panels (which will save correctly) and the use the Nvidia control panel top make any changes that don't require an "apply" (as opposed to the "save to X Configuration file, like a resolution or rotation change) and things will "stick" post reboot, but it is not an ideal solution at this time. Still getting 3 seperate panels or blank screen if i make any changes to the X Server Display Configuration. Very weird.

I wish someone more hands on would/could chime in. I hadn't really hand written an x config in nearly 20 years...though I definitely had to do it lots in my BSD days. Comically most the X docs are from about that time. Even using X -configure drops out what seem to be depreciated options with conflicting syntax that when enabled X won't even start. (i.e. Xinerama and StaticXinerama in the device section.)

This kinda makes me feel like I've been talking out my butt but I know I'm not. I used to do what you're doing all the time. In fact I stopped doing it because my GPU just couldn't play the games I was playing worth a crap when they fired up at 5760x1080, 5760x2160 or 7040x2160. Be it high end games that my GPU's just couldn't push the amount of pixels or older games that do odd things because they were designed in an age where no one could conceive of 4k, 5k, 8k screens or arrays of screens.

We are definitly barking up the same tree! I am keenly interested in rebuilding my Linux experiance and switching over to a Linux distro for a daily driver. Gaming of course is a huge motivator for me (cause ya, 3 27" monitors, trying to push 7680x1440 with a RTX 3060 is a bit insane, but I know it's doable and I have the BIT in my teeth now! 8P.

It used to bother me that i'd hit brick walls like this, but now I kow i'm not alone, and sometimes tinkering on the bleeding edge helps others. That being said we are no where near the bleeding edge and things ought to be working a tad more simply than thay are. As a precaution I have left my Windows partition intact in case I can't figure this out before New World launches. That game deserves to be seen with all it's glorious pixels as densly packed as possible! 8P

Mayby someone will peruse this soon and chime in, we can only hope.

Indeed, I've been running multi/mixed GPU since the Win2000 days. which often lead me down this road where like with a flight sim it would be nice to have it on ALL the screens not just the one. I used to play Arma 3/Insurgency (In Linux) with a 3x1 config like you want. Having a wider FOV and some peripheral vision is super important in an FPS. However I had some problem children. Orcs Must Die for example sets a strange FOV effect based on pixel width of your screen putting the camera over top your character so you can't see where you're going or shooting at times. Then some other games would render the whole screen width but place UI in weird places. (think devs query desktop width for one thing, panel/window size for another) Eventually I just switched to a standard config because I hated having to restart X all the time. Then I got a game I wanted to play wide again a few years ago and I couldn't get things to work anymore I just thought maybe I forgot how to do it...but didn't go too into it. Now I see it looks like it wasn't me but a silent change in behaviors or syntax.

Indeed this is sad and should be easier but it's also a hardware level issue. While I game most my GPU/Screen set up is for development and A/V work. I'm more interested in a "wall-o-screens" so I can glance around and reference things. So on top of the software issues it bugs me that GPU's limit the outputs like they do. Even running an RTX3090 I am pixel locked at the same as a GTX 1060. So much to say but ultimately it doesn't work towards figuring out the issue and I don't want to derail too bad...frankly I'd like to figure this out along with IF these changes are also what have broken everything for me on 20.X and up releases.

Yes, people often discount the benefits of a large high density "wall-o-screens" for simple spreadsheet work much less server management (ahh i remmeber fondly having roughly 20 ping windowes up and being able to see them all!)

I too am starting to think this is a hardware issue, I am seeing the same results in pixel density and FOV issues on certain games.

I did some digging as well comparing old xorg.conf and your correct, very little has changed syntax wise, yet no amount importing (with editing) seems to work. Admittedly i'm a linux acolyte compared to you but I am seeing the same results/issues across games and other applications.

Well I won't puff my chest up with "Linux Guru" stuff. Honestly with age I've become more and more "damnit JUST WORK!" and less likely to dig under the hood outside my own projects and work which has led to me forgetting tons.

Back to the hardware side sadly these days the "answer" is someone will tell you to just go buy an ultra wide...but then if you do any content creation that monitor sucks. Then GPU manufacturers artificially limit things to push you into product segments. Like my 1060 vs 3090 comment. Many years I'd get trolls telling me I was stupid for not buying Quadro cards (@ $4000+ per) that run the same amount of screens as a 1060 for $300 (once upon a time). (worse those Quadro cards show as multi GPU on a single bus causing more problems) Sadly everyone has been indoctrinated against choosing things that are best for your needs/budge/use-case.

Now I could be cheeky and say you know what would solve some problems? We have all these idiotic folding phones popping up...why not an ultrawide that curves and flattens. So you can have smooth curve for gaming and hard angles for content creation and work? Then you COULD run (in theory) single GPU, single screen. (goes to patent this idea) I'd be down with a single screen 4:3 style 60" (approx 9 1080 panels in a 3x3 grid)

I too am a recent 1060 convert (such an amazing workhorse card for years), I used to get the same advice about quadro cards, my attitude was if the company was gonna pay for it... fine! If I'm gonna pay for it, 1060 all the way!

And truthfully that trusty 1060 ran everything I threw at it @ 7680x1440 until this year's games. Admittedly It even ran New World at that resolution albeit at roughly 19FPS (barely playable), hence my upgrade.

My recent switch to Linux has further complicated things (HighPoint RocketRaid 2322 driver compile here I come! /gulp!).

Ya your monitor idea is genius, and with the current level of tech, very doable.

Sadly the monitor idea is also antiquated in the sense light VR style glasses that can give you a 360degrees of screen is better in theory. Then you don't have to deal with odd geometry if your top and bottom grid arrays need to angle up or down. ;)

Yeah I run a 1060 and 1660. 1660 has more power, less outputs but in this day and age you take what you can get. The caveat to the outs vs power is the 1060 can't down clock with so many screens but the 1660 can. My other machine was running an R9 270x in a 3x1 Xine config. It makes me wish I had an image of the machine from back then, perhaps something in the xconf I'm missing...or perhaps grasping at straws this can be solved. I can't resolve this to being undoable though where there are so many insane fb tricks and jerry rigs out there...Speaking of this it's weird how there are probably thousands of people on this site and I'm the only one that's replied. I'd hope someone else would pop in to offer some suggestions but it's just crickets. I tried a few of the other Ubuntu forums for my specific issue but it ended up with nothing but trolls.

Man HighPoint, I haven't heard that name since the ata33 to 66 days. Insert your floppy disk to load drivers! I'm being lazy and playing some Tarkov (yes in Linux ;)) for a few for a break.

Agreed, you'd think someone else would have chimed in by now, I wonder if the triple monitor setup is becoming a nich market since the advent of curved screens (although they are still outragoulsy expensive in my opinion). Either way i'm not giving up and if I get anything even remotely resembling success i'll take it!

I don't think ultra wides are gaining that much, I think more people are going 1080 high speed (144-244Hz) more than anything. A newish game on a single 1080/1440 screen running over 60Hz can be pretty taxing (which is sad).

I'll be curious if you can figure anything out too. I mean on the actual xorg site "current" says 2012!

Tried switching over to Wayland, and despite new Nvidia drivers with Wayland support, there is still no control panel. So back to square one.

You'd think Wayland would improve all these issues. Did you try nVidia command line settings? nvidia-xconfig Speaking of I just used -t on my machine and noticed something I noticed yesterday while looking over old xconf's...the monitor declarations! Which is to say 7 screens and only 3 noted in the config. Like what the hell is the logic behind THIS one needs to be defined...this one naa bruh, this one we need deets on...this one FUGEDABAWDIT! If they were all the same make/model I could kinda understand defining once but they aren't.

Potential curiosity to try? This may have some validity given I've noted xrandr overriding things for me at times.

In some cases the "RANDR" extension has to be disabled in order to see a single Desktop.

RANDR

Section "Extensions"
    Option "Composite" "Disable"
EndSection

Ya, no joy there either. The good news is now I have a duel boot system with the added benefit of choosing either xorg or Wayland when I boot to Pop OS, so im free to experiment.

This is good but also sucks as it's such an inconvenience having to reboot, even just restarting X is a pain. It's still kinda amazing the system can't pause/restore applications between an X restart.

I dont see a RANDR heading under my xorg.conf, should i uust add it at the end?

Yeah there is no "where" to put it...even the docs don't say which section/heading it goes under. So I figure either add it to
Section "ServerLayout"
or
Section "Screen"

Try either/both and see if X starts up or craps itself or perhaps angels sing.

Tried in all the suggested places, borked xorg each time, luckily i could just reboot into Wayland and fix it so no harm done.

I'll keep digging!

Well chit...

Everywhere ive looked it just fubar galore when it comes to enabling 3 panels as 1 screen. I just dont think good ole Linus (or any of the other distro maintainers) give a shit about video surroud support, so screw it for now!

I've tried my best, but i'm not gonna sacrifice full screen video quality at high resolution (7680 x 1440) just to spite myself. Back to windows and no 3 day headaches with this BS.

I'll leave my distro installed but am swithcing grub to the windows boot loader, the thrill of discovering something new and exciting has run head long into the pure frustration of an apathetic graphice managent system.

When xorg, or wayland, or xrandr finally get they're collective heads out of they're collective asses and decide to properly support multimonitor surround, i'll look back into Linux/Proton.

Well I've been quiet but trust me. I've been smashing my head into my desk max force. This is starting to look much larger than I thought. Your issue is kinda my issue. Looks like somewhere in Xorg or the Kernel they've killed the ability to stitch screens and to even section them with XScreens on a single GPU. I'm sure there is much more that's been broken/removed but it looks like we've both SOL. Only thing is you can reboot and be OK. I'm going to be out a few thousand dollars and my workflow set on fire. ;(

This is a tad off topic but I've noticed forwarding X over ssh in the 2X.XX is also broken or changed. Linux just became a Smart TV...where someone far far away flipped a switch to disable your device because reasons...

Yikes! I had no idea about x over ssh! Mayby we're about to hear something from the Wayland gang, Nvidia did just release they're first Wayland hardware accelerated drivers with the 470 set.

I'm just grateful it's simply a gaming/entertainment situation for me, a workflow cash loss situation would have me much more upset.

I guess you picked a year or two too late to do this hehe.

I went and did some poking about Wayland and sounds like it's supposed to play nice with multi GPU but I will need to try it. Every time I've heard about Wayland I've heard you simply choose XOrg or WayLand versions of your session on your gdm/lightdm login but I've never actually SEEN this option. Looks like you have to enable the greeter conf so I may do this and see how it does...but this doesn't help your situation persay.

Frankly this scares me a little (OK a lot). I stopped using Firefox years ago for similar. This trend where the fridge features are trimmed for the sake of a stream lined product that fits 1 to none rather than flexible for choice to fit all. I can see WayLand being broken for this stuff as a growing pain but for XOrg and something that's been one of its features for maybe 20+ years to just up and silently vanish with no findable change log to denote what was changed is down right MicrosAppletian™ ;)

Just did some more poking. Looks like I've never seen the WayLand option because I don't use Gnome, looks like Gnome and KDE only for the time being. Grabbing Kubuntu 21.04 to play a bit.

I was gonna try KDE Neon myself, ill report back.

I'm 21.04 KUbuntu - X11 of all things...seems to be working...tad unresponsive but I'm on the nouveau drivers atm. I'm guessing atm it's a bit like how Pop_OS was working but the screens show correctly across both GPU rather than "PRIME." I'll install and play around but this might be where you flex some of the xorg.conf layouts. I never thought I might move to KDE but better than moving to Windows 11.

**UPDHERT!

Kinda pains me to say this but I have things working...but man I dislike KDE. I disliked it in the 90's now it feels worse with all the convoluted hidden key combo behaviours and such heh. You can ADD this here but if you want to remove it you have to spin three times, jump over a cow and wear blue on a Tuesday! Same reason I left Gnome though. Stuck with Mate for a long time until they did the same. Then LXDE did...the same! Noticing a theme here. I wish that was a joke.

So anyhow, back to YOUR issue. Yeah XOrg seem "proper" on here. I haven't even tried Wayland yet but this might be the release for you the play around with and have it actually obey the syntax/features.

*sidenote I just got a Xubuntu 21.04 install semi working...Xorg doesn't freak out with more than one XScreen and the DE doesn't crash non-stop but it's still terribly broken heh. So I'll be interested if you play with KUbuntu 21.04 if it behaves...then I can be driven mad with "why?"

Just saw this! I was rooting around LTT and TECHHUT on youtube seeing if they had any insights. Ill download Kubuntu and see what I get!

Linus drops chit you say? (Level1Techs)

Hopefully this might work for you. I really don't know what the hell started happening after 18.XX but I found others affected too just no real info on what changed, why, where. Wayland sounds like it will do what you want (spoke with one of the maintainers) in that it is kinda open to any and all requests. So you can say render this my total area...and it will. We will see if that comes to fruition though. Testing last night it just hard locked my machine lol.

For some reason i cant get UEFI to boot a Xubuntu or KDE Neon USB stick, weird. gonna switch to legacy UEFI and do it the poor man's way lol!

UEFI Useless EFIng ... ;)

Gah! Ok, managed to get KDE Neon installed, Kubuntu just would not boot with my 3060 no matter what I did (very weird). Now I need to figure out how to make a new X screen? WhenI pull down the "Configuration" under X Server Display Configuration it gives me the option of a new X screen which requires a restart and the Xinerama option appears! But I have no idea how to configure it.

You shouldn't need a new XScreen, you already will have one for your screens. All you want is Xinerama to "stitch" them all into a single "virtual" panel. Though as I say that it might be a cheese work around if each screen is on it's own XScreen to force Xine. Just click on the screen you want, under there it will allow you to choose an existing XScreen or add a new one. I'm just redoing my workstation so I'm just installing the drivers now myself. Normally they are added when you click the install 3rd party etc during install but KUbuntu didn't do that, possibly because I have to install in safe gfx because the open source driver is terrible.

I dont get the option to enable Xinerama unless I make a new X screen. Wayland wont boot. SOB!

Yeah Wayland just hard locked my machine too. Yeah so just give each monitor it's own XScreen then tick Xine and see if it behaves as expected.

My head is getting sore from pounding it againts a wall, KDE Neon is a bust, all i can get is a disabled 3rd monitor for my trouble. Gonna take another stab at Xubuntu, although for the life of me i don't know why.

I was going to say it might not be a smart idea for "the future" but try XUbu 18.04?

I hate to admit defeat (for now) but I redid my machine several times just to restore my 18.04 backup. While Kubuntu 21.04 "works" it's such garbage and still has issues and glitches which really I'm just like screw it bring on the security problems!

Yes its the same issue that I am facing with nvidia you can see here my IGI game details https://igi2downloadforpc.com/ and help me if you know anything about its solution.

Cue no one click the scam exploit link comment.

Welp, I'm stuck. Tried Kubuntu and all I can do is make one or two screens go dark, Xinerama is useless, xrandr is like Greek to me. I'm just going back to windows gaming, this has been way more difficult and time consuming than necessary for an experiment. I'll leave the question open but since you and i and a scammer are alone in this thread... let's just say I'm managing my expectations.

Use arandr, drag'n drop. Despite being greek it's a lot easier than it used to be heh. I remember having to sus out mode lines and refreshs and various other nightmare details before a screen would work...but at the same time 1600x1200@120Hz far better color, perfect viewing angles, 200lbs, degaussing, trapazoid dimensions...oh those where the days!

So when you assign each monitor to it's own XScreen they just go dark?

Ya, once I enable Xinerama then save & restart X.

I'll check out arandr.

Does it work fine with Xine not enabled? Just curious if things with just one XScreen per monitor is OK. Any errors in the logs when you do have Xine enabled?

I hate to say it but I think this is the end for me. Going to have to tear machines apart and physically change (lose) a huge chunk of processing power.

This question was expired because it remained in the 'Needs information' state without activity for the last 15 days.

Hey JXT, small update, managed to KDE desktop (Full) on top of PopOS to work with Xinerama. After installing KDE and choosing GDM3 during install, and having already setup my triple monitor setup, i simply changed Xinerama from 0 to 1 in the xorg.conf and rebooted. KDE automatically booted into a unified (surround) desktop. Apps when maximized go full screen across all 3 monitors. Still working on getting games to launch but that may have more to do with the kludgy way i assembled this monstrosity and possibly video drivers.

This is good. I got a notice this was closed but I'm glad you were able to chip away at it. Sadly I gave up on my end and split my machine into 3. Which is to say I had to drag out some ancient computers sitting on my shelves to run the other GPU's/screens and a lot of file system overlay and XPRA silliness.

What's going on with the launching?