Von: Johannes Pointner <h4nn35.w...@gmail.com> Gesendet: 08.08.2017 9:15 Betreff: Re: [meta-freescale] Problem with touchscreen Display 1366x768 with Qt 5.9 and eglfs
2017-08-07 17:02 GMT+02:00 Otavio Salvador <otavio.salva...@ossystems.com.br>: > On Mon, Aug 7, 2017 at 11:51 AM, Benjamin Federau > <benjamin.fede...@basyskom.com> wrote: >> Von: Otavio Salvador <otavio.salva...@ossystems.com.br> >> Gesendet: 11.07.2017 17:16 >> Betreff: Re: [meta-freescale] Problem with touchscreen Display 1366x768 with >> Qt 5.9 and eglfs >> >> On Tue, Jul 11, 2017 at 10:16 AM, Benjamin Federau >> <benjamin.fede...@basyskom.com> wrote: >>> the bpp was set to 16, so I set it as you wrote to 32. But the Qt >>> application still crashes with "EGL Error : Could not create the egl >>> surface: error = 0x3003" >>> >>> So on our setup a Qt application with eglfs works with a 1366x768 >>> resolution? >>> >>> After setting the bpp I get a Kernel message, jfyi >>> [ 198.087193] mxc_sdc_fb fb@0: 1366x768 h_sync,r,l: 40,110,220 >>> v_sync,l,u: >>> 5,5,20 pixclock=83125000 Hz >>> >>> I'm not sure if I understand the thing with the burst size you mentioned. >> >> Are you using the Qt commercial layer? >> >> >> No. I use meta-boot2qt from http://code.qt.io/cgit/yocto/meta-boot2qt.git/ > > In this case, Qt ought to provide support for you. > > I don't think you need to use the commercial Qt from your description > so if you want we, O.S. Systems, can help you. If there is interest > please let us know and I can forward our services portfolio. If you are using lvds I think your problem could be related to this https://community.nxp.com/message/860347 I use dev=hdmi in my video parameter for my display. But I tried the suggested patch in that thread and it works for me. The error is gone and the Qt application starts on the 1366x768 resolution now. Thanks!
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