On 18 November 2015 at 10:09, Stephen Adler <[email protected]> wrote: > On 11/11/2015 02:48 PM, drago01 wrote: >> >> On Wed, Nov 11, 2015 at 8:22 PM, Stephen Adler <[email protected]> >> wrote: >>> >>> Thanks, >>> >>> >>> On 11/11/2015 10:34 AM, Bastien Nocera wrote: >>>> >>>> Hey, >>>> >>>> On Wed, 2015-11-11 at 09:50 -0500, Stephen Adler 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. >>>> >>>> A question better asked on X.org mailing-lists, but if you need to use >>>> the NVidia drivers, it'd be best to wait until they release new drivers >>>> to avoid mix'n'matching. You can double-check the version of XRandR >>>> supported by the server with "xrandr --version". >>>> >>>> With XRandR 1.5, and GNOME 3.18, MST monitors should just work. If they >>>> don't, file a bug against mutter, which handles programming the video >>>> outputs. >>>> >>>> Cheers >>>> >>> When you say, it should "just work", do you mean that the tiling problem >>> I'm >>> having now will disapear since gnome desktop will figure out that I only >>> have 3 monitors and not 6 tiles. Currently, when I go to configure the >>> displays, it tells me I have 6 displays to work with (two per physical >>> monitor). If all is right, then the gnome display configuration tool will >>> only show me 3 monitors to configure? I hope this is what your telling >>> me. >>> :) >> >> Yes thats how it is supposed to work afaik (no hardware here to verify). >> > > I installed fedora 23 which has Xorg 1.18 to go with it. I also installed > the latest version of the nvidia driver which now supports Xorg 1.18.... > So I'm now looking at xrandr and this is what it reports.... > > [root@office01 ~]# xrandr --version > xrandr program version 1.4.3 > Server reports RandR version 1.5 > > > Is this the expected output? 1.4.3 and 1.5? Or is this some kind of fedora > specific port of xrandr in which they didn't push through the 1.5 version? > > In anycase, the xrandr --prop output looks like this.... > > I guess the observation I have is that I still got my MST split screen > looking desktop when running my monitor in MST/DP1.2 mode. I had to turn off > two of the monitors to get a stable setup with the nvidia driver for my > GeForce GTX 970 card. > > So the question is, should I proceed to submit a bug report? Or is Fedora 23 > not really fully randr 1.5 compliant? >
The nvidia driver isn't exposing tile properties. Dave. _______________________________________________ desktop-devel-list mailing list [email protected] https://mail.gnome.org/mailman/listinfo/desktop-devel-list
