[Bug 200045] black screen on 'radeon' module probing

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=200045

--- Comment #2 from Wolfram Sang (wsa at the-dreams.de) ---
Okay, these are actually two bug reports meanwhile:

1) 3e5f06bed72fe72166a6778f630241a893f67799 causes a regression when
bit-banging I2C in software and results in keeping the screen black.

2) There is some regression when using the a HW interface for I2C which causes
a reboot when changing the brightness.

I'd suggest to work only on 1) here and create a new bug report for 2). I
should be able to give you some patches to test in a few minutes.

Thanks for the report and the bisecting!

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