Hi Max,
I have tried your suggestion in different configurations, but still no output visible on the HDMI.
When I am in U-Boot, I have the splash screen. But when I boot Linux, the splash screen disappears. But the status light, if you may call it that way on the monitor, on the power button goes from green to orange after 2 seconds.
Also, I get no display output when I put the device in recovery mode and upload Toradex easy installer (the handy screen to select an OS to be installed).
I don’t know if it any useful, but the following is the output from the serial console for: “cat /var/log/Xorg.0.log”.
root@apalis-imx6:~# cat /var/log/Xorg.0.log
[ 8.634]
X.Org X Server 1.19.3
Release Date: 2017-03-15
[ 8.634] X Protocol Version 11, Revision 0
[ 8.634] Build Operating System: Linux 4.9.0-7-amd64 x86_64
[ 8.634] Current Operating System: Linux apalis-imx6 4.9.87-2.8.4+g3bb6e3284a1b #1 SMP Fri Oct 5 16:02:39 UTC 2018 armv7l
[ 8.635] Kernel command line: vmalloc=400M user_debug=30 ip=off root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait fec_mac=00:14:2d:4e:a6:83 consoleblank=0 no_console_suspend=1 console=tty1 console=ttymxc0,115200n8 mxc_hdmi.only_cea=0 video=mxcfb0:dev=hdmi,1024x768M,if=RGB24 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off fbmem=32M
[ 8.635] Build Date: 05 October 2018 07:42:01PM
[ 8.635]
[ 8.635] Current version of pixman: 0.34.0
[ 8.635] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 8.635] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 8.636] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Oct 11 09:24:33 2018
[ 8.641] (==) Using config file: "/etc/X11/xorg.conf"
[ 8.641] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 8.643] (==) No Layout section. Using the first Screen section.
[ 8.643] (==) No screen section available. Using defaults.
[ 8.643] (**) |-->Screen "Default Screen Section" (0)
[ 8.644] (**) | |-->Monitor "<default monitor>"
[ 8.644] (==) No device specified for screen "Default Screen Section".
Using the first device section listed.
[ 8.644] (**) | |-->Device "i.MX Accelerated Framebuffer Device"
[ 8.644] (==) No monitor specified for screen "Default Screen Section".
Using a default monitor configuration.
[ 8.644] (**) Option "BlankTime" "0"
[ 8.644] (**) Option "StandbyTime" "0"
[ 8.644] (**) Option "SuspendTime" "0"
[ 8.644] (**) Option "OffTime" "0"
[ 8.644] (==) Automatically adding devices
[ 8.644] (==) Automatically enabling devices
[ 8.645] (==) Automatically adding GPU devices
[ 8.645] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 8.649] (WW) The directory "/usr/share/fonts/X11/TTF/" does not exist.
[ 8.649] Entry deleted from font path.
[ 8.649] (WW) The directory "/usr/share/fonts/X11/OTF/" does not exist.
[ 8.649] Entry deleted from font path.
[ 8.650] (WW) The directory "/usr/share/fonts/X11/Type1/" does not exist.
[ 8.650] Entry deleted from font path.
[ 8.651] (==) FontPath set to:
/usr/share/fonts/X11/misc/,
/usr/share/fonts/X11/100dpi/,
/usr/share/fonts/X11/75dpi/
[ 8.651] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 8.651] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 8.651] (II) Loader magic: 0x13d008
[ 8.651] (II) Module ABI versions:
[ 8.651] X.Org ANSI C Emulation: 0.4
[ 8.651] X.Org Video Driver: 23.0
[ 8.651] X.Org XInput driver : 24.1
[ 8.651] X.Org Server Extension : 10.0
[ 8.653] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 8.654] (II) no primary bus or device found
[ 8.654] falling back to /sys/devices/platform/Vivante GCCore/drm/card0
[ 8.654] (II) LoadModule: "glx"
[ 8.656] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 8.745] (II) Module glx: vendor="X.Org Foundation"
[ 8.745] compiled for 1.19.3, module version = 1.0.0
[ 8.745] ABI class: X.Org Server Extension, version 10.0
[ 8.745] (II) LoadModule: "vivante"
[ 8.758] (II) Loading /usr/lib/xorg/modules/drivers/vivante_drv.so
[ 8.762] (II) Module vivante: vendor="X.Org Foundation"
[ 8.762] compiled for 1.19.3, module version = 1.0.0
[ 8.762] ABI class: X.Org Video Driver, version 23.0
[ 8.762] (II) VIVANTE: fb driver for vivante: VivanteGC500, VivanteGC2100,
VivanteGCCORE
[ 8.762] (++) using VT number 7
[ 8.778] (WW) Falling back to old probe method for vivante
[ 8.778] (II) Loading sub module "fbdevhw"
[ 8.778] (II) LoadModule: "fbdevhw"
[ 8.778] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 8.780] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 8.780] compiled for 1.19.3, module version = 0.0.2
[ 8.780] ABI class: X.Org Video Driver, version 23.0
[ 8.780] (II) VIVANTE(0): using default device
[ 8.781] (II) VIVANTE(0): Device preferred mode 'fb0':U:1280x720p-60
[ 8.781] (II) VIVANTE(0): Creating default Display subsection in Screen section
"Default Screen Section" for depth/fbbpp 16/16
[ 8.781] (==) VIVANTE(0): Depth 16, (==) framebuffer bpp 16
[ 8.781] (==) VIVANTE(0): RGB weight 565
[ 8.781] (==) VIVANTE(0): Default visual is TrueColor
[ 8.781] (==) VIVANTE(0): Using gamma correction (1.0, 1.0, 1.0)
[ 8.781] (**) VIVANTE(0): mExaHwType:1
[ 8.781] (II) VIVANTE(0): checking modes against framebuffer device...
[ 8.781] (II) VIVANTE(0): checking modes against monitor...
[ 8.781] (--) VIVANTE(0): Virtual size is 0x0 (pitch 0)
[ 8.781] (==) VIVANTE(0): DPI set to (96, 96)
[ 8.781] (II) Loading sub module "fb"
[ 8.781] (II) LoadModule: "fb"
[ 8.781] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 8.785] (II) Module fb: vendor="X.Org Foundation"
[ 8.785] compiled for 1.19.3, module version = 1.0.0
[ 8.785] ABI class: X.Org ANSI C Emulation, version 0.4
[ 8.785] (II) Loading sub module "exa"
[ 8.785] (II) LoadModule: "exa"
[ 8.786] (II) Loading /usr/lib/xorg/modules/libexa.so
[ 8.788] (II) Module exa: vendor="X.Org Foundation"
[ 8.788] compiled for 1.19.3, module version = 2.6.0
[ 8.788] ABI class: X.Org Video Driver, version 23.0
[ 8.920] (II) VIVANTE(0): printing discovered frame buffer 'fb0' supported modes:
[ 8.920] (II) VIVANTE(0): Modeline "U:640x480p-59"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync -csync (31.5 kHz e)
[ 8.921] (II) VIVANTE(0): Modeline "U:1280x720p-60"x0.0 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync -csync (45.0 kHz eP)
[ 8.985] (II) VIVANTE(0): Output DISP3 BG has no monitor section
[ 8.985] (II) VIVANTE(0): Printing probed modes for output DISP3 BG
[ 8.985] (II) VIVANTE(0): Modeline "U:1280x720p-60"x60.0 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync -csync (45.0 kHz eP)
[ 8.985] (II) VIVANTE(0): Modeline "U:640x480p-59"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync -csync (31.5 kHz e)
[ 8.985] (II) VIVANTE(0): Output DISP3 BG connected
[ 8.985] (II) VIVANTE(0): Using exact sizes for initial modes
[ 8.985] (II) VIVANTE(0): Output DISP3 BG using initial mode U:1280x720p-60 +0+0
[ 8.985] (II) VIVANTE(0): imxDisplayPreInit: virtual set 1280 x 720, display width 0
[ 8.985] (II) VIVANTE(0): VivPreInit: adjust display width 1280
[ 9.088] (II) VIVANTE(0): reserve 4177920 bytes for on screen frame buffer; total fb memory size 8360960 bytes; offset of shadow buffer 4177920
[ 9.155] (II) VIVANTE(0): hardware: DISP3 BG (video memory: 8165kB)
[ 9.170] (II) VIVANTE(0): FB Start = 0x75ea9000 FB Base = 0x75ea9000 FB Offset = (nil)
[ 9.171] (II) VIVANTE(0): test Initializing EXA
[ 9.542] (II) EXA(0): Driver allocated offscreen pixmaps
[ 9.542] (II) EXA(0): Driver registered support for the following operations:
[ 9.542] (II) Solid
[ 9.542] (II) Copy
[ 9.542] (II) Composite (RENDER acceleration)
[ 9.542] (II) UploadToScreen
[ 9.542] (==) VIVANTE(0): Backing store enabled
[ 9.543] (==) VIVANTE(0): DPMS enabled
[ 9.543] (II) VIVANTE(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[ 9.545] drmOpenDevice: node name is /dev/dri/card0
[ 9.546] drmOpenDevice: open result is 14, (OK)
[ 9.546] drmOpenDevice: node name is /dev/dri/card0
[ 9.546] drmOpenDevice: open result is 14, (OK)
[ 9.546] drmOpenByBusid: Searching for BusID platform:Vivante GCCore:00
[ 9.546] drmOpenDevice: node name is /dev/dri/card0
[ 9.546] drmOpenDevice: open result is 14, (OK)
[ 9.546] drmOpenByBusid: drmOpenMinor returns 14
[ 9.546] drmOpenByBusid: drmGetBusid reports platform:Vivante GCCore:00
[ 9.546] (II) [drm] DRM interface version 1.4
[ 9.546] (II) [drm] DRM open master succeeded.
[ 9.546] (II) VIVANTE(0): [drm] Using the DRM lock SAREA also for drawables.
[ 9.546] (II) VIVANTE(0): [drm] framebuffer handle = 0x84800000
[ 9.546] (II) VIVANTE(0): [drm] added 1 reserved context for kernel
[ 9.547] (II) VIVANTE(0): X context handle = 0x1
[ 9.547] (II) VIVANTE(0): [drm] installed DRM signal handler
[ 9.547] (II) VIVANTE(0): [DRI] installation complete
[ 9.547] (--) RandR disabled
[ 9.547] (II) AIGLX: Screen 0 is not DRI2 capable
[ 9.547] (EE) AIGLX: reverting to software rendering
[ 9.680] (II) IGLX: enabled GLX_MESA_copy_sub_buffer
[ 9.683] (II) IGLX: Loaded and initialized swrast
[ 9.683] (II) GLX: Initialized DRISWRAST GL provider for screen 0
[ 9.683] (II) VIVANTE(0): Setting screen physical size to 338 x 190
[ 9.881] (II) config/udev: Adding input device gpio-keys (/dev/input/event1)
[ 9.881] (**) gpio-keys: Applying InputClass "evdev keyboard catchall"
[ 9.881] (II) LoadModule: "evdev"
[ 9.882] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[ 9.888] (II) Module evdev: vendor="X.Org Foundation"
[ 9.888] compiled for 1.19.3, module version = 2.10.5
[ 9.888] Module class: X.Org XInput Driver
[ 9.888] ABI class: X.Org XInput driver, version 24.1
[ 9.888] (II) Using input driver 'evdev' for 'gpio-keys'
[ 9.888] (**) gpio-keys: always reports core events
[ 9.888] (**) evdev: gpio-keys: Device: "/dev/input/event1"
[ 9.889] (--) evdev: gpio-keys: Vendor 0x1 Product 0x1
[ 9.889] (--) evdev: gpio-keys: Found keys
[ 9.889] (II) evdev: gpio-keys: Configuring as keyboard
[ 9.889] (**) Option "config_info" "udev:/sys/devices/soc0/gpio-keys/input/input1/event1"
[ 9.889] (II) XINPUT: Adding extended input device "gpio-keys" (type: KEYBOARD, id 6)
[ 9.889] (**) Option "xkb_rules" "evdev"
[ 9.894] (II) config/udev: Adding input device stmpe-ts (/dev/input/event0)
[ 9.894] (**) stmpe-ts: Applying InputClass "evdev touchscreen catchall"
[ 9.894] (II) Using input driver 'evdev' for 'stmpe-ts'
[ 9.895] (**) stmpe-ts: always reports core events
[ 9.895] (**) evdev: stmpe-ts: Device: "/dev/input/event0"
[ 9.899] (--) evdev: stmpe-ts: Vendor 0 Product 0
[ 9.899] (--) evdev: stmpe-ts: Found absolute axes
[ 9.899] (--) evdev: stmpe-ts: Found x and y absolute axes
[ 9.899] (--) evdev: stmpe-ts: Found absolute touchscreen
[ 9.899] (II) evdev: stmpe-ts: Configuring as touchscreen
[ 9.899] (**) evdev: stmpe-ts: YAxisMapping: buttons 4 and 5
[ 9.899] (**) evdev: stmpe-ts: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[ 9.899] (**) Option "config_info" "udev:/sys/devices/soc0/soc/2100000.aips-bus/21a4000.i2c/i2c-2/2-0041/stmpe-ts/input/input0/event0"
[ 9.899] (II) XINPUT: Adding extended input device "stmpe-ts" (type: TOUCHSCREEN, id 7)
[ 9.899] (II) evdev: stmpe-ts: initialized for absolute axes.
[ 9.901] (**) stmpe-ts: (accel) keeping acceleration scheme 1
[ 9.901] (**) stmpe-ts: (accel) acceleration profile 0
[ 9.901] (**) stmpe-ts: (accel) acceleration factor: 2.000
[ 9.901] (**) stmpe-ts: (accel) acceleration threshold: 4
[ 9.904] (II) config/udev: Adding input device stmpe-ts (/dev/input/mouse0)
[ 9.904] (II) No input driver specified, ignoring this device.
[ 9.904] (II) This device may have been added with another device file.
