Hello Chris, If I have time to do this test the next time i will do it (putting the graphic card on the 4x PCIe bus). Now, it works fine with 2 MacPro (with one graphic card and 2 PS3 Eye on each MacPro) and Ubuntu 10.04. I have installed PureData 0.42.5, last GEM from SVN and ATI driver Catalyst for the Radeon HD 5770 and the acceleration is OK. When i was using 'dialog' message, i can't remember what i got. Thanx for your help and suggestion. I will try to test all your recommandations the next time. One remark : it seems the graphic acceleration is better under Ubuntu than MacOSX. Is there a problem with the driver under MacOSX ? (The same patch worked faster under Ubuntu). ++
Jack > Jack > > I think two of those cards might draw too much power to run at the same > time? Also, check the PCIe lane speeds and try running them at 4x or 8x > rather than 16x. > > AS far as getting 4 of the same cam running, it depends on how the driver > presents multiple cams to Quicktime. It might show up as one device with > four inputs, for example. Use the 'dialog' message to check it out. > > On Thu, May 19, 2011 at 5:00 AM, Jack <j...@rybn.org> wrote: > >> Thanx Mathieu, >> >> I will give it a try with your tips. >> I have started to install Ubuntu 10.04 on the Mac Pro and i think i will >> use this OS. >> >> In fact, i am crazy because i have installed two ATI Radeon HD 5770 on >> this Mac Pro (version 5.1). Each card has 2 Mini Display Ports and 1 DVI >> port. On the Apple website it is write each graphic card accept a >> resolution of 2560x1600 px. When i plug 2 TV screen (HDMI and each >> screen with 1280x768px) on the 2 Mini Display Port on one card (with an >> adapter Mini Display Port/HDMI), it works fine. But if i use the second >> card with the same configuration (so 4 TV screen on the 4 Mini Display >> Port), it seems the computer have not enough power, the Finder quit each >> 10 second. >> I use MacOSX.6.6 and this is not the lastest version (the lastest is >> X.6.7 and maybe it is working with this version but now i have no time >> to test this config). >> >> With Ubuntu, the sytem start to load then the 4 screens stay black. I >> have to unplug the 2 cables on one graphic card to boot normaly. So i >> can only use 2 screens. >> >> I don't know where is the problem (power ? Apple computers ?). >> If someone have any experience on this problem, i will be happy to >> listen him. >> >> Now, the solution that i am going to use : >> 1 Mac Pro with Ubuntu and one graphic card (ATI Radeon HD 5770) >> 1 PC with Ubuntu and one graphic card (NVidia GT 440 or NVidia GTX 460) >> ++ >> >> Jack >> >> >> >> >> Le mercredi 18 mai 2011 à 11:58 -0400, Mathieu Bouchard a écrit : >> > On Wed, 18 May 2011, j...@rybn.org wrote: >> > >> > > I'm going to work on a Mac Pro with MacOsX.6.7 and the latest stable >> > > Pd-extended 0.42.5. I would like to connect four PS3 Eye on this >> > > computer and use GEM with pix_video to read these four devices in >> four >> > > instance of Pd (=> one camera per instance of pd). I will use Macam >> > > driver (or something else ?) Is it easy to get each camera working >> in >> > > the same time on this system ? Do you have experience in this area ? >> > >> > My experience with just one cam on OSX and Pd-extended 42 was that >> object >> > creation order mattered because each [pix_video] object automatically >> > opens the first available camera AND the "device 1" method didn't >> work. >> > So, to access only the 2nd camera, I had to create two objects and >> only >> > use the 2nd one. >> > >> > using 4 [pix_video] objects for 4 cameras may work, but they will be >> > assigned by creation order. >> > >> > _______________________________________________________________________ >> > | Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, >> QC >> >> >> _______________________________________________ >> Pd-list@iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list >> >> > _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list