Conversation with Compiz developers on #compiz-fusion-dev confirming this is an issue with the latest release:
<IntuitiveNipple> With the Ubuntu Jaunty (1:0.7.9+git20090211-0ubuntu4) package, using two X screens of different dimensions, there is an out-of-bounds (black) region on the 2nd screen where desktop and windows can't go, but the mouse can. Is this known? I'm not finding anything in the bug-tracker. <IntuitiveNipple> I'm just about to try latest git head just-in-case <smspillaz> two X screens or two X outputs? <smspillaz> screen != output <IntuitiveNipple> two X screens (:0.0 and :0.1) <smspillaz> I don't think we support two X screens of different dimentions <smspillaz> start one compiz instance per screen with --only-current-screen <crdlb> srsly? ouch <IntuitiveNipple> It worked fine with previous versions... this appears as a regression when updating to Jaunty, at least. <crdlb> don't try latest git head, btw <smspillaz> We do support two _outputs_ of different dimentions <smspillaz> crdlb++ <crdlb> depending on which one you use, you'll either get exactly the same thing you have <crdlb> or a completely broken compiz <smspillaz> IntuitiveNipple: nevertheless, you won't find much love in the current git head <IntuitiveNipple> There's photo's attached to the Ubuntu bug report if it'd help: https://bugs.edge.launchpad.net/ubuntu/+source/compiz/+bug/331918 <smspillaz> IntuitiveNipple: we've dropped multi-screen support completely ;-) <IntuitiveNipple> smspillaz: That's a shame <smspillaz> multi-screen was an X hack <crdlb> lol, don't phrase it that way <crdlb> IntuitiveNipple: it'll just always use --only-current-screen, essentially <smspillaz> If you want multi-screen, start one compiz instance per screen <crdlb> "an X hack"? <smspillaz> pretty much <IntuitiveNipple> smspillaz: So, that suggests the Ubuntu start-up scripts will need to change then <crdlb> there's nothing hacky about it, it's just lots of work with very little testing <smspillaz> it's been mostly superseeded by xrandr 1.2, twinview, xinerama etc <crdlb> IntuitiveNipple: that's not in 0.8 <crdlb> oh ... <crdlb> except for the whole using two GPUs part ... <smspillaz> IntuitiveNipple: multi-screen support is still in 0.8 but it is probably broken, that is because no developers actually can be bothered to test it because it is such a pain to set up <IntuitiveNipple> So, should I open a bug for this? <smspillaz> you can, but I don't think it will be fixed unless someone sits down and does the work to set up multi-screen ;-) <smspillaz> IntuitiveNipple: you can use --only-current-screen now though (and have two compiz instances) <crdlb> if it worked in 0.7.8, it might be a simple regression that could be fixed in a future 0.8 release <smspillaz> it works better that way <IntuitiveNipple> smspillaz: Is that going to confuse GDM ? I notice CCSM offers to configure both screens as before... was hoping there was going to be a relatively simple tweak there :) <smspillaz> what does gdm have to do with ccsm? <smspillaz> ok, so they both use gtk ;-) <IntuitiveNipple> nothing... it's called a sentence; joins unrelated by correlating statements :D <smspillaz> IntuitiveNipple: anyways, you should change your startup scripts to have compiz start --only-current-screen on each screen <IntuitiveNipple> and I can't type! s/by/but/ :) <smspillaz> it shouldn't confuse gdm that much <IntuitiveNipple> smspillaz: OK, I'll have a go at that. Compiz isn't my forte, I'm at the kernel end of things. <smspillaz> I don't know what it would confuse gdm at all tbh <smspillaz> ;-) <smspillaz> yay kernel <IntuitiveNipple> so something like: DISPLAY=:0.0 compiz --only-current-screen; DISPLAY=:0.1 compiz --only-current-screen <smspillaz> we have a secret world takeover plan regarding the kernel, but I guess we can discuss that later ;-) <crdlb> compiz --replace --only-current-screen should work on ubuntu <IntuitiveNipple> ? <smspillaz> IntuitiveNipple: yeah that should be right ** Changed in: nvidia-graphics-drivers-180 (Ubuntu) Status: New => Invalid -- Out-of-bounds areas for multiple X screens with different dimensions https://bugs.launchpad.net/bugs/331918 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
