Re: Radeon HD 7450 brightness oversaturated

From: Meelis Roos
Date: Fri Mar 22 2019 - 03:02:15 EST


I decided to put a discrete graphics card into a PC and found a fitting Radeon HD 7450.
It works, but there is strange whiteness like the brightness is oversaturated and
light places turn into other colors:
* on fbcon, right after radeondrmfb initializes
* in X after powersave

The colors return to normal after a VT switch or two.

Screenshot of one such washed view is at http://kodu.ut.ee/~mroos/radeon_washed.jpg

Kernels are 5.0 and 5.1-rc1.

Is it just kernels 5.0 and 5.1? There haven't really been any display
related changes to radeon in ages. Possibly a duplicate of:
https://bugzilla.kernel.org/show_bug.cgi?id=198123

No, I just put the card in and tested with only the current kernels I had.
I can get some older kernel and test with that if that is of any help.

--
Meelis Roos <mroos@xxxxxxxx>