Re: monitor setting in gnome using new randr 1.5 option

[Stephen Adler <adler stephenadler com>]

On 11/11/2015 06:09 PM, Dave Airlie wrote:
> On 12 November 2015 at 00:50, Stephen Adler <adler stephenadler com> wrote:
> > Guys,
> >
> > I have 3 MST type 4K monitor hooked up to my PC and I've been trying to get
> > linux to work properly and have been chopping at the bit for randr 1.5 to
> > come out which is supposed to solve the MST tile issue which 4K monitors
> > suffer from.
> >
> > Is there something I have to do, configure some file in /etc/ somewhere
> > which would define which tiles make up a monitor? I'm not sure if there is
> > something I have to do, or if gnome is supposed to take care of the tiling
> > for me, by somehow defining which tiles are part of which monitor.
> >
> > to make matters worse, I have a pair of nvidia cards for which the nvidia
> > driver does not support xorg 1.18, so I had to downgrade to xorg 1.17. In
> > doing so, I still have randr 1.5 installed but I don't know if randr 1.5
> > needs xorg 1.18 or if the two are decoupled enough so that I can run xorg
> > 1.17 with the nvidia driver and get the benefits of the monitor features of
> > randr 1.5.
> >
> > Anyone know the answer to all this? I owe you big if you do.
> You need X server 1.18 at least.
> You also need nvidia to make changes to their driver to support tile
> blobs. I'm not sure if they've done this or not.
>
> xrandr --props on their driver when they release 1.18 compatible
> driver will tell you.
> Dave.
Is there a video driver which supports 4K MST monitors which runs under 
linux so that I can test this new "tile blobs" thing?
I'm kind of sick of NVIDIA right now but the only alternative is ATI 
cards which when I last tried, did not have MST support under the linux 
drivers.

Thanks. Steve.