[Bug 27478] Radeon gamma bug, display too bright when using DVI-VGA adapter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27478

--- Comment #50 from Alex Deucher <agd5f at yahoo.com> 2010-04-30 15:50:36 PDT ---
(In reply to comment #49)
> (In reply to comment #48)
> don't know if this is relevant:
> - even as root i can't obtain the rom of my video card with instruction posted
> before.

replace <pci bus id> with the bus id of your video card (look it up with
lspci).


> - Atom.c does not appear anywhere in my system.

You apparently don't have the kernel source installed then.  Also it's atom.c
(note the case).

> - i did any previous step using proprietary drivers but even now that i
> uninstalled them there is nothing different.
> - radeontool instruction give always "mapping ctrl region" response.
> - avivotool regmatch 0x7ef4 and avivotool regmatch 0x7ff4 give segmentation
> fault error.

You need to run avivotool as root.  radeontool isn't useful for your card.

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