On Mon, Aug 27, 2018 at 11:26 AM, o1bigtenor <o1bigtenor at gmail.com> wrote: > On Mon, Aug 27, 2018 at 9:57 AM, Andrew Lunn <andrew at lunn.ch> wrote: >> On Mon, Aug 27, 2018 at 09:29:40AM -0500, o1bigtenor wrote: >>> On Mon, Aug 27, 2018 at 8:44 AM, Andrew Lunn <andrew at lunn.ch> wrote: >>> >> Running as previously, on Debian testing (10 or buster) with a pile of >>> >> ram and and (lots of resources), with what may be more unusual is 2 >>> >> graphics cards and 4 monitors set up as 2 x-screens. (Would love to >>> >> condense that into 1 screen if someone has the know how and can >>> >> describe it but 2 works well enough even if 1 would be quite slick >>> >> (and very 'interesting').) >>> > >>> > Are the two cards from the same vendor? Or different vendors? >>> >>> Both are nvidia 570 cards from the same vendor. >>> > >>> > I've done this in the past using Xinerama. >>> >>> I am using xinerama but using 2 xscreens. Its using only 1 xscreen that >>> I don't know anything about! >> >> You should not need to use Xinerama in order to have one Xserver merge >> two screens on a single card. >> >> Ah, hold on. Are you using the proprietary nvidia driver? Maybe you >> have to use Xinerama for that driver? >> >> All the open source drivers should drive two displays on one card >> without any additional configuration. > > You bet they run 2 screens from one card but they also don't seem to see the > other 2 cards (3 total) so that didn't much help things. >> >> You might also find the open source driver just correctly finds two >> cards, four displays, and it all just works out of the box. > > Sorry - - - - not a chance!! >> >> But there is a trade off. The open source drivers might just work out >> of the box, the nvidia proprietary stuff will give you better >> performance. If it is a gaming machine, you probably want the >> performance. If its just a developers box, where you just need large >> screen acreage, mostly text, the open source driver might be >> sufficient. > > Not a gamer (at all!) but I do want things to work and as I couldn't tame > nouveau - - - - oh well it was the proprietary solution (I don't think nvidia > really gives a flying rat's patootie about linux drivers!!! as their track > record shows (if someone wants to argue!!).) > > I spent far too many hours over far too many days to try to achieve my own > solution to getting nouveau working. If someone has a solution - - - well I'm > all ears but I couldn't figure out how to use randr1.5, which CAN do this, set > up to use multiple cards and multiple monitors. > > Regards > > Dee bump