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