<html> <head> <style></style></head> <body class='hmmessage'><div dir='ltr'>Hi Bachmann<br><br>Thank you very much for your reply.<br><br>I got it.I do not have DRM driver for GPU.<br><br>Sorry,i have another question for help.<br><br>Is there any informations that explain DRM driver and GPU driver relationship for weston?<br><br>I want to study architecture of DRM/GPU/Weston。<br><br>Best regards.<br><br>Andy<br><div><hr id="stopSpelling">Date: Fri, 8 Aug 2014 10:36:13 +0200<br>Subject: Re: [LookForHelp]A10S/ARM Weston-launch failed‏<br>From: manuel.bachmann@open.eurogiciel.org<br>To: williamyang13@hotmail.com<br>CC: wayland-devel@lists.freedesktop.org<br><br><div dir="ltr"><div><div><div><div>Hi Andy,<br><br>It looks like Weston is trying to use its DRM backend (which is the default) to initialize the GPU, but is not finding the device or driver. You can verify this by doing "$ ls /dev/dri/". If the folder is empty, or does not exist, it means you do not have a DRM driver for your GPU.<br> <br></div>If your GPU has framebuffer support, you can try this as root :<br></div>$ weston --backend=fbdev-backend.so<br><br></div>More generally, ARM boards support is tricky, because their GPUs have specific and sometimes closed drivers. Raspberry PI is a notable exception (for the support).<br> <br></div>Regards.<br></div><div class="ecxgmail_extra"><br><br><div class="ecxgmail_quote">2014-08-08 9:56 GMT+02:00 Yang Andy <span dir="ltr"><<a href="mailto:williamyang13@hotmail.com" target="_blank">williamyang13@hotmail.com</a>></span>:<br> <blockquote class="ecxgmail_quote" style="border-left:1px #ccc solid;padding-left:1ex;"> <div><div dir="ltr">Hi everyone<br><br>I have some questions for help.<br><br>When i run weston-launch command in TizeIVI,it echo below error information.<br><br>I investigation weston source code and find that it seems to fail to find gup device.<br> <br>1.In order to setup wayland/weston in arm device,is there any necessary thing to be done?<br><br>2.Is there any requirement for Hardware / Drivers?<br><br>3.Is DRM must for weston(compositor),how to setup DRM?<br><br> 4.In order to run weston-launch,do i have to use gpu? <br><br>[Error Information]<br>Aug 07 12:19:26 ivi_box weston-launch[264]: [12:19:26.243] Using config file '/etc/xdg/weston/weston.ini'<br>Aug 07 12:19:26 ivi_box weston-launch[264]: [12:19:26.243] Loading module '/usr/lib/weston/drm-backend.so'<br> Aug 07 12:19:26 ivi_box weston-launch[264]: [12:19:26.244] initializing drm backend<br>Aug 07 12:19:26 ivi_box weston-launch[264]: [12:19:26.244] no drm device found<br><br>[target device]<br>A10S ARM<br><br><br>Best regards.<span class="ecxHOEnZb"><font color="#888888"><br> <br>Andy<br> </font></span></div></div> <br>_______________________________________________<br> wayland-devel mailing list<br> <a href="mailto:wayland-devel@lists.freedesktop.org">wayland-devel@lists.freedesktop.org</a><br> <a href="http://lists.freedesktop.org/mailman/listinfo/wayland-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/wayland-devel</a><br> <br></blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr">Regards,<br> <br> <i><b>Manuel BACHMANN</b><br> Tizen Project<br> VANNES-FR</i><br> </div> </div></div> </div></body> </html>