That worked. Thank you, for the quick reply.
Dexter On Tue, Jul 31, 2018 at 10:30 AM Johannes Pointner <h4nn35.w...@gmail.com> wrote: > Hello Dexter, > > try to set the QT_QPA_EGLFS_ALWAYS_SET_MODE variable. > > > > On Tue, Jul 31, 2018 at 3:14 PM, Dexter Travis > <dexter.tra...@precisionplanting.com> wrote: > > (apologies for previous message without subject line.) > > > > I am attempting to update a working yocto build system with imx6 dual > plus > > CPU running the following > > kernel 4.14 with etnaviv > > libmesa 17.3.0 > > libdrm 2.4.85 > > qt 5.9.2. (qt 5.10.x also works) > > > > I would like to update to sumo yocto with > > kernel 4.16 with etnaviv > > libmesa 17.3.8 > > libdrm 2.4.91 > > qt 5.11 > > > > This is an embedded device without X11 installed. > > > > When I run Qt5_CinematicExperience -platform eglfs I get an error "Could > not > > queue DRM page flip on screen LVDS1 (Invalid argument)" I get the same > > error with my custom application. > > > > If I run with -platform linuxfb the application runs correctly. > > > > I have swapped out libdrm, the kernel and libmesa version and find that > the > > problem seems to follow my upgrade to qt 5.11. Said another way, > swapping > > the components listed above leads me to believe the problem is with the > qt > > upgrade. Running qt 5.11 with the other originally working components > does > > not work. > > > > Looking at the configure log for qtbase (5.11) it looks like all the same > > opengl options are configured as were configured in 5.9 and 5.10. See > below. > > > > qt 5.11 configure log details. This qt does not work. > > QPA backends: > > 1185 DirectFB ............................... no > > 1186 EGLFS .................................. yes > > 1187 EGLFS details: > > 1188 EGLFS OpenWFD ........................ no > > 1189 EGLFS i.Mx6 .......................... no > > 1190 EGLFS i.Mx6 Wayland .................. no > > 1191 EGLFS RCAR ........................... no > > 1192 EGLFS EGLDevice ...................... yes > > 1193 EGLFS GBM ............................ yes > > 1194 EGLFS VSP2 ........................... no > > 1195 EGLFS Mali ........................... no > > 1196 EGLFS Raspberry Pi ................... no > > 1197 EGL on X11 ........................... no > > 1198 LinuxFB ................................ yes > > 1199 VNC .................................... yes > > 1200 Mir client ............................. no > > > > qt 5.10.1 working configure section > > QPA backends: > > 1173 DirectFB ............................... no > > 1174 EGLFS .................................. yes > > 1175 EGLFS details: > > 1176 EGLFS OpenWFD ........................ no > > 1177 EGLFS i.Mx6 .......................... no > > 1178 EGLFS i.Mx6 Wayland .................. no > > 1179 EGLFS RCAR ........................... no > > 1180 EGLFS EGLDevice ...................... yes > > 1181 EGLFS GBM ............................ yes > > 1182 EGLFS Mali ........................... no > > 1183 EGLFS Raspberry Pi ................... no > > 1184 EGL on X11 ........................... no > > 1185 LinuxFB ................................ yes > > 1186 VNC .................................... yes > > 1187 Mir client ............................. no > > > > > > I would appreciate any help with this issue. > > > > > > > > Thank you, > > > > > > Dexter > > > > _______________________________________________ > > Interest mailing list > > Interest@qt-project.org > > http://lists.qt-project.org/mailman/listinfo/interest > > >
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