Precise 12.04 now, 64bit.

It's not so much about installing 1 or 10, it's about not a one of the "next-gen" desktops has been ever tested with more than one framebuffer or very large ones it seems.  I'm pretty sure the problems are not apparent in a *simple* dual monitor, single framebuffer config (i.e. nvidia twinview), but rather when you have DISPLAY:0.0 and DISPLAY:0.1 to the system.  Compiz and the ATI drivers I'm reasonably sure is the root of all evil, and 5760x1200 x2 displays.

Unity with 12.04, and the unity plugin itself can somewhat deal with multiple framebuffers now, but nautilus still causes this lovely "white screen" effect on my second monitor set when launched.  Gnome-Shell just freezes when logging in, getting a wallpaper, but nothing more before having to flip tty's and restart lightdm.  Cinnamon's task bars won't render at all.  Kde was so-so, but most apps had issues with the displays between the giant render modes.

Cinnamon's half-broken state is more or less what I use, overlaying awn and cairo to make it usable, but when I get a chance I've been meaning to put lxde on there to see how it fares.

I really hoped when they announced on canonical's blog a good 6 months or more ago now they'd finally bought their dev a 6-head display to test with maybe things would finally get better, but apparently not.  I'd love what and how they're actually testing with it as I'm still only sorta working here, and only because I have worked around everything that defaults to simply broken.

Sadly I'd tried win7 for the first time on a native dual-head display with separate framebuffers the other day, and had a bunch of quirky issues with mremote and some others dragging between displays.  Guess Linux isn't the only one not getting it, but at least I didn't have to pay 200 bucks for the priviledge of debugging the os for the vendor.

-mb


On 04/12/2012 10:00 AM, Dazed_75 wrote:

MichaelB, what release are you running?  I've installed something like 8
Desktop Managers (DMs) on my ubuntu 11.10.  I did this for a
presentation I did on installing additional DMs.

The problems I've seen are a few extra programs installed for the
lightweight DMs, I now get the xubuntu splash at some time in startup
and shutdown regardless of which DM I actually use, and some of the DMs
don't play well with older projectors.  Cinnamon works great.

This thread is really about 12.04 and I have not tried these things on
12.04.

On Thu, Apr 12, 2012 at 8:52 AM, Michael Butash <michael@butash.net
<mailto:michael@butash.net>> wrote:

    I wish that were the case for me - gnome3 won't even launch with
    multiple framebuffers requiring me to drop to a tty and restart
    lightdm to choose something else.  Cinnamon is broken on the same
    display as well.  Sadly with the "new desktops", unity works the
    best, which isn't saying much in the least.  It's like 2005 all over
    again, hacking entirely around ui short-sightedness.

    At this point the only thing gnome-ish left I can use is gedit and
    gnome-terminal, even nautilus is still broken on multiple displays.
    Other than that, avant-window-navigator and cairo-dock provide all
    my task and tray management.

    -mb



    On 04/11/2012 09:56 PM, Stephen wrote:

        Well while i may hate unity, getting gnome2/3 working is a cakewalk
        now. install the one you want. logout and pick the one you want.

        you do end up wasting space with unity still installed, but at
        least it works.

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