No HDMI display on Debian / Cubox

[multicast]

With build from 26th of August, kernel 3.14.14 (cli, debian jessie) I cannot see any hdmi output.

 

When cubox i4pro boots, it shows uboot env and I can interrupt boot, hdmi works well. starting kernel puts monitor into powersave mode. everything else seems to work, I can ssh to the cubox and see the logs, which look normally, e.g.

 

I have tried bpp 16 or 24 when default 32 didn't work

root@cubox-i:~# egrep 'mxc|hdmi|fb0' /var/log/kern.log
Jan  1 01:00:20 localhost kernel: [    0.000000] Kernel command line: root=/dev/mmcblk0p1 rootfstype=ext4 rootwait console=tty1 video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=16 rd.dm=0 rd.luks=0 rd.lvm=0 raid=noautodetect pci=nomsi ahci_imx.hotplug=1 consoleblank=0 vt.global_cursor_default=0Jan  1 01:00:20 localhost kernel: [    0.119352] Switched to clocksource mxc_timer1
Jan  1 01:00:20 localhost kernel: [    0.324303] mxc_sdc_fb fb.27: register mxc display driver hdmi
Jan  1 01:00:20 localhost kernel: [    0.324508] mxc_hdmi 20e0000.hdmi_video: Detected HDMI controller 0x13:0xa:0xa0:0xc1
Jan  1 01:00:20 localhost kernel: [    0.444434] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 58, base_baud = 5000000) is a IMX
Jan  1 01:00:20 localhost kernel: [    0.445224] 21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 61, base_baud = 5000000) is a IMX
Jan  1 01:00:20 localhost kernel: [    1.426994] mxc_vdoa 21e4000.vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
Jan  1 01:00:20 localhost kernel: [    1.431774] mxc_asrc 2034000.asrc: mxc_asrc registered
Jan  1 01:00:20 localhost kernel: [    1.436771] mxc_vpu 2040000.vpu: VPU initialized
Jan  1 01:00:20 localhost kernel: [    1.441716] mxc_hdmi_cec hdmi_cec.16: HDMI CEC initialized
Jan  1 01:00:20 localhost kernel: [    1.472790] mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_read_edid HDMI in HDMI mode
Jan  1 01:00:20 localhost kernel: [    1.498523] imx-audio-hdmi sound-hdmi.26: hdmi-hifi <-> hdmi_audio.15 mapping ok
Jan  1 01:00:20 localhost kernel: [    1.514152]   #1: imx-hdmi-soc

When I try to change mode with fbset, this appears in kernel log:

Sep 12 05:55:35 localhost kernel: [ 1289.119343] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.134958] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.135006] imx-ipuv3 2400000.ipu: WARNING: adapt panel end blank lines
Sep 12 05:55:35 localhost kernel: [ 1289.140918] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.140931] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.140945] imx-ipuv3 2400000.ipu: mxc ipu: unimplemented pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.140968] imx-ipuv3 2400000.ipu: Unsupported burst size 1
Sep 12 05:55:35 localhost kernel: [ 1289.140986] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.140998] imx-ipuv3 2400000.ipu: mxc ipu: unimplemented pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.141027] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.141042] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.141052] imx-ipuv3 2400000.ipu: mxc ipu: unimplemented pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.141185] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1289.174243] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_10 = 0x00080000
Sep 12 05:55:35 localhost kernel: [ 1289.174292] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_5 = 0x00800000
Sep 12 05:55:35 localhost kernel: [ 1289.640796] mxc_sdc_fb fb.27: timeout when waiting for flip irq
Sep 12 05:55:35 localhost kernel: [ 1289.656539] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1290.155646] mxc_sdc_fb fb.27: timeout when waiting for flip irq
Sep 12 05:55:35 localhost kernel: [ 1290.155678] mxc_sdc_fb fb.27: cannot get pixel format
Sep 12 05:55:35 localhost kernel: [ 1290.655544] mxc_sdc_fb fb.27: timeout when waiting for flip irq

Do you have any suggestions where to look or what to try? at first I'm going to check wheezy or ubuntu images, and probably also compile myself to see what happens.

 

 

 

[Igor]

Try with lower resolution.

 

1920x1080M@60 

to

1280×720@60

[multicast]

I did, although with 1024x768-60, the same result. Wheezy desktop the same. I will go through /sys/class/graphics/fb0/modes and try to set each.

 

now I burn again solid-run image which worked well, but I want the fb.modes copy. can you suggest other images from your archive,probably  with older kernel?

[multicast]

should I try e.g. http://mirror.igorpecovnik.com/Cubox-i_Debian_2.2_jessie_3.18.1.zip ?

[Igor]

3.18.x That build is experimental.

 

Try rather one or two versions back because there were some changes and I also read about problems on solid-run forum.

[multicast]

I have checked both from http://download.solid-run.com/pub/solidrun/cubox-i/Debian/Jessi-repackaged-trial/and both work well.

 

my fb mode is:

mode "1920x1080-60"
    # D: 148.500 MHz, H: 67.500 kHz, V: 60.000 Hz
    geometry 1920 1080 1920 1080 32
    timings 6734 148 88 36 4 44 5
    hsync high
    vsync high
    rgba 8/16,8/8,8/0,8/24
endmode

 I went through all modes in class/graphics/fb0/modes, and all of them work on standard solid-run image:

 

U:1920x1080p-60

S:1920x1080p-50

S:1280x720p-50

S:720x576p-50

S:720x576p-50

S:640x480p-60

S:720x480p-60

S:720x480p-60

S:1280x720p-60

S:1920x1080p-60

V:640x480p-60

V:640x480p-60

 

kernel in charge... Linux version 3.0.35-02676-g71c14f4 (mtx512@mtx512-Inspiron-620) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #292 SMP PREEMPT Sun Dec 1 12:11:54 GMT 2013

[multicast]

3.18.x That build is experimental.

 

Try rather one or two versions back because there were some changes and I also read about problems on solid-run forum.

 

can you suggest link to older build? seems I cannot locate a build cubox with older kernel...

[multicast]

3.18.x That build is experimental.

nevertheless I tried it, but no luck. I try to rebuild from scratch next or the other week and will report back.

 

have you checked this build? can anyone confirm this build actually works with hdmi (any resolution...)?

[Igor]

I usually test builds on Hummingboard i2x, Cubox rarely. 

 

Changes to kernel and u-boot were made without version change. Just some minor fixes due to 4G ram version of Cubox. This should not bring problems but you never know

 

I am out office for few days so can't conduct tests.