<div dir="ltr"><div>Dear all,</div><div> </div><div>we have created a Linux embedded system for an Allwinner A13 SOC. All the</div><div>linux kernel needed support is enabled, you can check in the following kernel logs</div><div>that the mali gpu is detected and Lima driver enabled, also the sun4i-drm driver: </div><div> </div><div> <<<===========================================================</div><div> ... [ 0.881876] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pd not found, using dummy regulator [ 0.895920] lima 1c40000.gpu: gp - mali400 version major 1 minor 1 [ 0.902267] lima 1c40000.gpu: pp0 - mali400 version major 1 minor 1 [ 0.908568] lima 1c40000.gpu: l2 cache 32K, 4-way, 64byte cache line, 64bit external bus [ 0.917322] lima 1c40000.gpu: bus rate = 300000000 [ 0.922177] lima 1c40000.gpu: mod rate = 384000000 [ 0.927515] [drm] Initialized lima 1.1.0 20191231 for 1c40000.gpu on minor 0 [ 0.935599] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pc not found, using dummy regulator ... [ 2.171465] Key type dns_resolver registered [ 2.175845] Registering SWP/SWPB emulation handler [ 2.191990] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pd not found, using dummy regulator [ 2.200843] sun4i-drm display-engine: bound 1e00000.display-frontend (ops 0xc084c328) [ 2.209107] sun4i-drm display-engine: bound 1e60000.display-backend (ops 0xc084bb68) [ 2.217464] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops 0xc084a6c8) [ 2.225311] sun4i-drm display-engine: bound 1c0a000.tv-encoder (ops 0xc084b428) [ 2.233146] checking generic (4fda8000 258000) vs hw (0 ffffffff) [ 2.233154] fb0: switching to sun4i-drm-fb from simple [ 2.238746] Console: switching to colour dummy device 80x30 [ 2.245271] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 1 [ 2.253402] [drm] kms: can't enable cloning when we probably wanted to. [ 2.291290] mmc0: host does not support reading read-only switch, assuming write-enable ... ===========================================================>>></div><div> </div><div> we have completed a drm driver test with the "modetest" tool and this command: "modetest -M sun4i-drm -s 49@47:1024x600-60" (only mode supported on our panel) and the result is correct, we can see the color bars on screen, the drm works! we also have completed a kms driver test with "kmscube" tool and we can see a 3dcube on screen with 60fps at only 10% cpu, the kms works! With a video the test report 20fps at 42% cpu ("kmscube -V test.mpg") </div><div> </div><div>But here is our problem, when we launch a test such as "glxgears" app we only</div><div>reach 15fps and almost 100% cpu. What's more, when a QT app such as vlc is</div><div>launched we get the following message: "libEGL warning: DRI2: failed to authenticate"</div><div> </div><div> We have installed mesa3d library following the linux sunxi instructions, and now we</div><div>have libEGL.so.1.0.0 / libGLESv1_CM.so.1.1.0 / libGLESv2.so.2.0.0 on our system.</div><div> <div>Those libs are the only ones on system on /usr/lib folder. Seems as if there is no</div><div>hardware gpu use / access, but we created correctly the mesa3d libs (check the following</div><div>build configure info for mesa version 20.2.2) and QT openGLES support. </div><div> </div><div> <<<=========================================================== ... Message: Configuration summary: prefix: /usr libdir: lib includedir: include OpenGL: yes (ES1: yes ES2: yes) OSMesa: no DRI platform: drm DRI drivers: no DRI driver dir: /usr/lib/dri GLX: DRI-based EGL: yes EGL drivers: builtin:egl_dri2 GBM: yes EGL/Vulkan/VL platforms: x11 surfaceless drm Vulkan drivers: no llvm: no Gallium drivers: kmsro lima panfrost swrast Gallium st: mesa HUD lmsensors: no Shared-glapi: yes Build targets in project: 121 Option buildtype is: release [default: debugoptimized] ... ===========================================================>>> </div><div> </div><div> <div class="gmail-DTXlsb"><div>We will keep on searching for a solution. Any help or clue would be greatly appreciated. Thank you very much for your help! Best Regards, Sergio Sota</div></div><div class="gmail-L8sBDd"></div> </div> </div><div> </div></div>