I go back to your 5.10.42 packages that I have kept.

- HDMI audio is now working normally ( it was broken in 5.13.9 as said by many people )

- no more error messages in dmesg

- but still no HDMI video output ; I think it worked with a more recent 5.10.x kernel

Where can I dowload the last batch of kernel 5.10.x ?

Don't you backup any downloaded files in the event of any problems occurring after upgrading to newer versions?

Generally I do this ..... except the last time when I have forgotten

Could you "bang out another [next] batch using kernel 5.10.x" when available ?

Of course. I am building the latest kernel 5.10.59 as we speak with the intention of making them available for download later today. I've had a couple of emails from users in the same predicament as you. So, it's prudent to make these 5.10 files available while all the issues with 5.13 are resolved for anyone who needs them and/or doesn't already have them.

Therefore, I've consulted Tadgy at Slackware.uk (where the SARPi Project downloads are hosted) who has kindly and generously permitted me to use some extra space to store these files. They should be available in a few hours. I'll post back here when that time has arrived with further details.

https://slackware.uk/sarpi/sarpi_kernel_5.10/

Download the SARPi installer and system packages using kernel 5.10.59 from that URL.

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Thanks a lot @Exaga !

I have upgraded to 5.10.59 and everything is OK !

- HDMI audio works properly
- HDMI video output also

and cherry on the cake, HDMI hotplug is working fine ( it did not work before )

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You're welcome. Glad it works for you.

What I propose You @Exaga is :

- As I have made a backup of all the files of the version 5.10.59, as soon as you publish a new version of 5.13, I test it and tell you if it works or not

- If it works, you can erase your 5.10 branch

- If not, we will have to wait for the fix of the 5.13 branch errors.

The kernel 5.10.x shizzle will remain until such a time when 5.13.x is working 100%. That makes perfectly good sense to me.

I've just uploaded a new SARPi batch this morning using kernel 5.13.12 - you might like to test with them to verify if HDMI video/audio is working on your setup.

https://sarpi.penthux.net/index.php?p=downloads

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I have just tested your batch of 5.13.12

== HTML Audio ===

It seems to work normally in VLC and Firefox !

== HTML Video ==

Always a lot of messages in dmesg about modules ( see attachment ) !

An no outside HTML video output with "max_framebuffers=2" and either "dtoverlay=vc4-kms-v3d" or "dtoverlay=vc4-kms-v3d-pi4" !

So I revert back to 5.10.59

Attached Files

dmesg.txt (141.7 KB, 22 views)

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Thanks for the feedback and your dmesg output is truly EPIC! So, by the looks of it, the vc4_drm shizzle still needs some tender loving care and attention.

[ 4.951289] WARNING: CPU: 0 PID: 391 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:417 vc4_hdmi_bind+0x7c4/0x104c [vc4]

[Note: I think you mean 'HDMI video output' and not HTML. ]

There seems to be many more errors now than previously. I hope this vastly improves in the next Raspberry Pi repository kernel 5.13.x release or I'll think about reverting to, and sticking with, 5.10.x until a later date. There's absolutely no point in putting end-users through the wringer.

Incidentally, logging in via SSH on CLI there are no issues whatsoever with this kernel in Slackware ARM.

I don't see anything resembling the errors in dmesg as posted by Desiderius. Other than HDMI audio, everything is fine with 5.13.12 on my pi4.

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Thanks for sharing your experiences. All SARPi shizzle feedback is very welcome.

There are a few video issues being highlighted and addressed at the moment on the Raspberry Pi Repository issues page on GitHub, but (surprisingly) they seem to be mainly related to kernel 5.10.x users. The HDMI audio is a known problem with kernel 5.13.x and I'm quietly confident that a permanent solution will be forthcoming quite soon. I try to keep a watchful eye on the aforementioned issues page to stay apprised of any relevant problems that may affect Slackware ARM on the Raspberry Pi devices that other Linux distro users are experiencing.

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The 5.13.15 files are built and available to download. Try them out, see how it goes with HDMI audio, etc.

https://sarpi.penthux.net/index.php?p=downloads

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