Display depth on Linux
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On linux, when setting Display Depth to something else than 32, it is impossible to recongnize something on the screen. We did some research with Juan Vuletich on this and it sounds like an error on the VMnot the Smalltalk code
We try it on Ubuntu 9.04, 64 bits. Is this a known bug? Hernan
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Re: Display depth on Linux
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2009/8/9 Hernan Wilkinson <[hidden email]>
Do you have Compiz activated?
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yeap, it was that, thanks!
2009/8/9 Mariano Martinez Peck <[hidden email]>
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Re: Display depth on Linux
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Does someone know if there are also problems in Metacity as there are with Compiz when using something else than 32 bits?
Best, Mariano 2009/8/10 Hernan Wilkinson <[hidden email]> yeap, it was that, thanks! _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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Guys
could you create a wiki pages with "Possible problems with interacting tools on windows" or something like that? Stef On Aug 10, 2009, at 11:20 PM, Mariano Martinez Peck wrote: > Does someone know if there are also problems in Metacity as there > are with Compiz when using something else than 32 bits? > > Best, > > Mariano > > 2009/8/10 Hernan Wilkinson <[hidden email]> > yeap, it was that, thanks! > > 2009/8/9 Mariano Martinez Peck <[hidden email]> > > > > 2009/8/9 Hernan Wilkinson <[hidden email]> > > On linux, when setting Display Depth to something else than 32, it > is impossible to recongnize something on the screen. > We did some research with Juan Vuletich on this and it sounds like > an error on the VMnot the Smalltalk code > We try it on Ubuntu 9.04, 64 bits. Is this a known bug? > > > Do you have Compiz activated? > > > Hernan > > _______________________________________________ > Pharo-project mailing list > > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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Stéphane Ducasse wrote:
> Guys > > could you create a wiki pages with "Possible problems with interacting > tools on windows" > or something like that? > > Stef > > I believe this problem is due to a combination of the unix vm putting garbage into the alpha channel (the extra 8bits in 32bit colour after RGB) and a Composite extension manager active on the X server. I think Metacity uses Composite as does Compiz and a few others. Composite is the X extension that allows the 3d desktop stuff and other shiny effects to work btw. > On Aug 10, 2009, at 11:20 PM, Mariano Martinez Peck wrote: > > >> Does someone know if there are also problems in Metacity as there >> are with Compiz when using something else than 32 bits? >> >> Best, >> >> Mariano >> >> 2009/8/10 Hernan Wilkinson <[hidden email]> >> yeap, it was that, thanks! >> >> 2009/8/9 Mariano Martinez Peck <[hidden email]> >> >> >> >> 2009/8/9 Hernan Wilkinson <[hidden email]> >> >> On linux, when setting Display Depth to something else than 32, it >> is impossible to recongnize something on the screen. >> We did some research with Juan Vuletich on this and it sounds like >> an error on the VMnot the Smalltalk code >> We try it on Ubuntu 9.04, 64 bits. Is this a known bug? >> >> >> Do you have Compiz activated? >> >> >> _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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On Tue, Aug 11, 2009 at 08:26:20AM +0100, Douglas Brebner wrote:
> St?phane Ducasse wrote: > > Guys > > > > could you create a wiki pages with "Possible problems with interacting > > tools on windows" > > or something like that? > > > > Stef > > > > > I believe this problem is due to a combination of the unix vm putting > garbage into the alpha channel (the extra 8bits in 32bit colour after > RGB) and a Composite extension manager active on the X server. I think > Metacity uses Composite as does Compiz and a few others. I have zero expertise in this area, but in case it is related: Juan Vuletich posted a fix yesterday in Mantis 7376: "Bug in BitBlt (rgbMul sets alpha to 0)". I can't tell if this relates to the problem you are describing, but FWIW Juan's fix is in the latest VMMaker on SqueakSource (as of yesterday), so if you are building your on VM you can try it and see if it makes a difference. Dave _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
Re: Display depth on Linux
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On Tue, Aug 11, 2009 at 8:07 AM, David T. Lewis <[hidden email]> wrote:
Mmmm wierd. There are several tickets for the same problem? http://bugs.squeak.org/view.php?id=7376 http://bugs.squeak.org/view.php?id=7068 http://bugs.squeak.org/view.php?id=7001 http://dev.laptop.org/ticket/6759 Others mails: http://lists.squeakfoundation.org/pipermail/squeak-dev/2008-August/130935.html Other solution? http://squeakvm.org/cgi-bin/viewcvs.cgi/branches/olpc/platforms/unix/vm-display-X11/sqUnixX11.c?rev=1878&r1=1889&r2=1878&diff_format=h I am confused haha. thanks! Mariano
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