bbb，not support hdmi

[offensive-security]

bbb，not support hdmi

[steev]

Can you provide the full dmesg output? And Xorg log file please?

[steev]

Double check that it cloned the kernel correctly - I had that happen to me at one point where my internet hiccuped and it didn't clone the linux kernel during that step.

[steev]

Ah, I just noticed you're not the original filer - yes, your issue is unrelated. Please do not file unrelated items under unrelated bugs. That should be it's own issue, but as I noted - if it doesn't clone the kernel (the linux-dev repo does its own clone of a kernel) properly, then it can't patch anything.

[0xicl33n]

Sorry - removing post and i shall make an issue if this build doesnt work

[duchengyao]

And could you pleas tell me how to find the Xorg log?
I removed Xorg.0.log & Xorg.0.log.old from /var/log , restart the BBB, but I can't find new Xorg.log file.

[steev]

That should happen automatically when X starts on the box - if not, perhaps logging in first?

Can you tell me how you are powering your bbb, and what devices you are plugging in, and what type of monitor you're using?

And if you can log in on the serial console, can you provide the actual dmesg output? Reading through the systemd spam is rather annoying (and not everything printed to the screen is what shows up in dmesg. Thanks!

[duchengyao]

BBB, 5V power plugin, and microHDMI to VGA adapter, VGA monitor

If not plugging micro HDMI , I can log in the serial console; but if i plug my monitor, the BBB stoped when the serial output *[ 11.665511] [drm] No driver support for vblank timestamp query. * ,and I can't log in on the serial console.

I am trying to get the actual dmesg output...

[steev]

Have you seen https://www.youtube.com/watch?v=toPYh_VCHvI ?

[duchengyao]

I used the BBB direct a hdmi monitor, but still nothing display.
Have you ever tested the img?
Or, I'm using the wrong dtb file?

[steev]

Yes, I test every image before release and it worked here with my Samsung monitor via microHDMI->HDMI connection.

[duchengyao]

Which dtb I should choose? the original am335x-boneblack.dtb?
Thanks!

[steev]

Correct, you should only be using the cape one if you're actually using a cape. The correct one should be picked up by u-boot, but if you're randomly renaming files trying to get it to work, it's not going to work.

[duchengyao]

I have read the log, and found a ERROR.

    [    4.485230] [drm] Initialized drm 1.1.0 20060810                             
    [    4.490976] Error: Driver 'tfp410' is already registered, aborting...        

The 'tfp410' may be a DVI interface FP410 TI PanelBus™ Digital Transmitter

When I am using the old kali img（kernel 3.8.13) , the message is that:

    [    2.340469] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
    [    2.347392] [drm] No driver support for vblank timestamp query.
    [    2.447805] tilcdc 4830e000.fb: Not sure which CEA mode to set, leaving as DVI

[duchengyao]

@steev Notice! This issue is not related to Add an xorg.conf to force 16bit video and fbdev !

It is a kernel problem. I replaced am335x-boneblack.dtb and zImage from kali-bbb-1.1.0.img (kernel 3.8.13); hdmi started to work!!!

Best regards

[steev]

So you're saying with the 4.4 kernel, it fails to do any HDMI for you?

[duchengyao]

Yes. And even if hdmi is not plugging in, the log is :

    [    4.485230] [drm] Initialized drm 1.1.0 20060810                             
    [    4.490976] Error: Driver 'tfp410' is already registered, aborting...   

And I found cpufreq-info fail, in the 4.4 kernel. I am doing another test to confirm this issue

[seamustuohy]

I also am unable to use HDMI on my beagle bone black. kernel version 4.4.0-armv7-devel-r28.

[duchengyao]

I've noticed that the latest image in beagleboard.org is using kernel 4.1.17. I think Kernel 4.1.X is a better choice for Beaglebone Black.
http://elinux.org/Beagleboard:BeagleBoneBlack_Debian

[steev]

I'm currently running a build against the 4.1 kernel sources - once I finish it, if you'd like to give it a try, shoot me an email. steev at kali dot org

[duchengyao]

I tried your new image kali-2.1.1-bbb.img.xz with kernel 4.1.17; HDMI works !

And cpufreq-info also works!

Thanks~

[hagensieker]

Can I also get a copy of 2.1.1 also please. I just bought a BBB and downloaded 2.1 and no HDMI also. Thanks.

[email protected]

[steev]

Can one of you that was having hdmi issues please test the 2017.2 issue and let me know if you are still having issues?