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 > _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
