HDR Kernel messages
Hi~
After an upgrade to 6.14.2.artix1-1 my log is full of messages like this:
[kernel] [176613.005834] HDR SB:5e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[kernel] [176613.005840] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
The hex is mostly the 5e and zeroes but sometimes also for example:
[kernel] [175446.783402] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[kernel] [175446.783409] HDR SB:00 00 00 00 cb 00 00 00 00 00 00 00 00 00 00 00
[kernel] [175533.235177] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[kernel] [175533.235184] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
(I don't know where it comes from so I do not know how to decode it.)
I do most things on TTY but switch to one of several X sessions from time to time. This is when they seem to get generated.
I have no HDR device I am aware of nor do I care about using it.
Can we just ignore these (or ideally filter them out) or do I need to take some action?
Edit:
Did not find this on my last search but:
https://github.com/torvalds/linux/commit/88694af9e4d1feaf635c23844833960f8958af78
The 0x01 and 0x1a is hard-coded and the whole log seems relatively useless for the end-user anyway, so for now I assume it can just be ignored.
Since the driver code is over 6 years old something else must have caused this to suddenly appear in the logs but my crystal ball fails.
Edit2:
Had no time to investigate yet but it seems it is caused by using the MPV player from a TTY.
On a fresh boot there is no "HDR SB" logs until running MPV. After that there is several logs every time MPV is run, closed or when switching from and to X sessions (or rather: changing framebuffer modes?).
AFAIK MPV is "HDR-aware software".
Will update if I find something but at least it does not seem to indicate anything serious.
Topic: HDR Kernel messages (Read 651 times)
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