On Fri, Jul 20, 2018 at 11:01:38PM +0200, Marcin Owsiany wrote: > 2018-07-20 22:22 GMT+02:00 Rodrigo Vivi <[1]rodrigo.vivi@xxxxxxxxx>: > > On Thu, Jul 19, 2018 at 11:31:19PM +0200, Marcin Owsiany wrote: > > $ xrandr --fb 8960x2880 > > xrandr: screen cannot be larger than 8192x8192 (desired size > > 8960x2880) > > I'm afraid that it is a hardware limitation that you won't be able > to > workaround. > > Interestingly, just yesterday Ville Syrjälä posted a patch series for > "GTT remapping for display", > which concludes in this hopeful-looking patch called "Bump gen4+ fb > size limits to 32kx32k: > [2]https://lists.freedesktop.org/archives/intel-gfx/2018-July/171922.ht > ml > Which looks oddly similar to what I encountered on reddit. > I don't pretend to even understand what "GTT remapping" is, but maybe > there is hope after all? ;-) cool... I have that series on my todo list here to take a look but I haven't yet. I'm glad to hear that there's hope. > > But a log would be interesting anyway... (both dmesg and xorg.0.log) > > I'll try digging up that patched kernel sometime and get the messages. > > > My current workaround is to pretend that the displays are > arranged > > vertically, but even after a few months I'm sometimes having > trouble > > remembering that I need to move mouse cursor UP when I want to > go to > > LEFT display :-) > This is another bug.... And probably the right (only?) fixable fr > your > setup. > > Why is this a bug? What I meant is that two wide monitors fit > within 8192x8192 > when using xrandr's --above but not --left-of, so I'm just using the > former despite > having a different physical arrangement. > Marcin > PS: Sorry for the initial double-post, I thought my first email was > blackholed np... I approved it as soon as I saw it there. list is open, but I have to filter the non-subscribed emails because of so many spams... > while I was not yet subscribed to the list. > > References > > 1. mailto:rodrigo.vivi@xxxxxxxxx > 2. https://lists.freedesktop.org/archives/intel-gfx/2018-July/171922.html > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
