On Thursday 12 Dec 2013 18:18:59 Christopher Barry wrote:
> On Thu, 12 Dec 2013 06:49:23 +0000
>
> Mick <[email protected]> wrote:
> > On Wednesday 11 Dec 2013 21:50:41 Christopher Barry wrote:
> > > Mick, can you post your /var/log/Xorg.0.log on pastebin or
> > > somewhere for me? I'm assuming you are using the opengl compositing
> > > with radeon driver. I think I may have some remnants of ati stuff
> > > on my box, and would like to see what your log says.
> > >
> > > Thanks!
> >
> > Here you go:
> > http://pastebin.com/edFZPTbr
>
> Thanks. I've got the Radeon OSS driver running correctly now on my
> Radeon HD 7850 (PITCAIRN). It will do triplehead (aka Eyefinity) fine
> with the OSS driver. The trick for me was to let X probe everything, but
> use xrandr in a script file called from both /etc/lightdm/lightdm.conf
> and /etc/X11/Xsession.d/45xrandr-layout (which I created) to organize
> my screens correctly.
>
> For me, the contents of the layout script was written by a handy
> little app called 'arandr', and looks like this:
>
> # screen layout script
> #!/bin/bash
> xrandr --output DisplayPort-0 --off \
> --output DVI-1 --mode 1920x1200 --pos 0x0 --rotate normal \
> --output DVI-0 --mode 1920x1200 --pos 1920x0 --rotate normal \
> --output HDMI-0 --off
>
> I saved the script in /usr/bin/xrandr-screen-layout, and called it
> from /etc/X11/Xsession.d/45xrandr-layout (a single line in there), and
> from /etc/lightdm/lightdm.conf, using the following config item:
> display-setup-script=/usr/bin/xrandr-screen-layout
>
> I wrote a full xorg.conf, but for some reason, because my DisplayPort-0
> does not yet have my third monitor hooked up (I need a mini to regular
> adaptor to make my active DP->DVI dongle work), I could not get the
> xorg.conf working. It kept trying to put my first screen on the
> DisplayPort-0 anyway, and I could not figure out how to tell X to not
> use it :(. I'm sure there is a way and would LOVE to know how if anyone
> knows.
>
> Once I get the adaptor, and hookup DisplayPort-0, I'll modify the
> script to enable correct placement of that third monitor too.
>
> Took literally all f*(<ing day to do it, but YAY - FINALLY everything is
> working now!! I still see some stuff in my log I'm not keen on, like:
>
> (II) RADEON(0): KMS Color Tiling: disabled
> (II) RADEON(0): KMS Color Tiling 2D: disabled
>
> and
>
> (II) AIGLX: Screen 0 is not DRI2 capable
> (II) AIGLX: Screen 0 is not DRI capable
> (II) AIGLX: Loaded and initialized swrast
> (II) GLX: Initialized DRISWRAST GL provider for screen 0
> (II) RADEON(0): Setting screen physical size to 508 x 317
>
> but I think the latter has to do with DisplayPort-0 not being active
> yet, and it's the card's primary port.
>
> Hopefully this can help someone else wean themselves off of
> the proprietary ATI/Catalyst/fglrx.
>
> Next up: take the e18 plunge :)
Thanks a lot for sharing! It could come hand for others who search for hints
on the same set up.
--
Regards,
Mick
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