[Bug 60710] Radeon RV530 I2C failure with DVI monitor.

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=60710

--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Chris Rankin from comment #4)
> (In reply to Alex Deucher from comment #3)
> > The hw i2c engine somehow got into a bad state.
> 
> Not only that, but GNOME3 put the HW I2C engine back into that same "bad
> state" when I rebooted and logged back in. (The DVI-0 monitor was switched
> to a non-native 1680x1050 mode during the whole reboot process, but was then
> shut down and disconnected when GNOME3 was unable to reconfigure it for its
> native 1920x1200 mode).

Well a warm reboot may not have fuly reset the hardware; the bad state may have
persisted.

> 
> > hw i2c is diabled by default for a reason.
> 
> Yes, presumably because it has bugs like this in ;-). But surely that
> doesn't mean you're not interested in people reporting those bugs when they
> find them?

Sure, I just wouldn't hold out much hope for a fix :)  r5xx hardware is pretty
old.

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