Undestand ... no normal refresh data of xmc is 100ms ... but i try with succes refresh of 50ms and 30ms. I use 100ms because on qt i have a OpenCv on work and only a I5 cpu.
Il giorno sab 21 mar 2020 alle ore 12:56 Gene Heskett <ghesk...@shentel.net> ha scritto: > On Saturday 21 March 2020 07:31:05 theman whosoldtheworld wrote: > > > Sorry, where is the advantage of use framebuffer instead use xmc > > world? > > There isn't any unless your xcm is slower. framebuffers are often below 4 > frames a second in rendering speed. > > > Il giorno lun 2 mar 2020 alle ore 21:22 Frank Tkalcevic < > > > > fr...@franksworkshop.com.au> ha scritto: > > > > My question: > > > > > > > > Will using the framebuffer (instead of X) make a better > > > > environment for LinuxCNC? > > > > > > For low spec. computers, not having the overhead of X, is a bonus. > > > You'll also boot faster into linuxcnc. > > > > > > But, you won't be able to run other applications or utilities. And > > > you'll need to write everything from scratch - X's OpenGL is used > > > for the 3d. > > > > > > > ( I am ankle deep in FB programming now and wondering if I should > > > > get in > > > > > > deeper or head for higher ground ) > > I only use it if there no other choice. > > > > I played around with Qt and its option to use the framebuffer as the > > > output device (with the command line option '-platform > > > linuxfb:fb=/dev/fb0'). Theoretically, you can write 1 Qt program > > > that would work with X or FB. That > > > proof of concept worked, but I didn't have time to take it further. > > > > > > Recently I tried to apply the same option with one of the Qt > > > linuxcnc UIs (pyqt?), but they used other parts of X so it would not > > > run (from memory it was IPC libraries; D-bus?) > > > > > > > > > > > > > > > _______________________________________________ > > > Emc-developers mailing list > > > Emc-developers@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
