From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?J=E9r=F4me?= Pouiller Date: Wed, 07 Sep 2016 17:51:10 +0200 Subject: [Buildroot] Problem with qt5webkit on ARM? In-Reply-To: References: Message-ID: <1589997.cMmLFOyjqE@sagittea> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello Allan, On Tuesday 06 September 2016 02:39:21 Allan Chandler wrote: > We are trying to get the qt5webkit (5.5.0 from BR 2015.11) package > running on an iMX6 device and we're getting asserts from the code. > > Originally, I thought it may be our application (a cut-down browser) > but it appears the browser in the qt5webkit-examples package has > exactly the same issue. > > It manifests itself with the output (the last section is the important > one): ===== > QEglFSVivIntegration will set environment variable FB_MULTI_BUFFER=2 > to enable double buffering and vsync. If this is not desired, you can > override this via: export QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=1 > > Unable to query physical screen size, defaulting to 100 dpi. > To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and > QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters). I have not tested Qt + EGLFS + iMX6 since a while, but I remember that I have felt it was not stable enough to be used on real projects. Maybe things are better now. However, I suggest to try Xorg backend, if it is possible. BR, -- J?r?me Pouiller, Sysmic Expert Linux Embarqu?