After I update to the latest mesa git (85e1fa55066783d2748993810708dee6db7a4993) I found out the some programs (`cairo-dock -o` and gnome-terminal) start not to paint itself.
After some time bisecting, I found the commit which caused the problem is 1a339b6c71ebab6e1a64f05b2e133022d3bbcd15.
A google search #38602 and #38610 indicates 1f544cc58794cffe5d5cac5a83efde91154f1b7d fixes this, but not my case.
Everything was good with 98ce1373e47d05d7150933c391fdeddbc897a3cd.
With 1a339b6c71ebab6e1a64f05b2e133022d3bbcd15, X goes to CPU 100% after cairo-dock started.
With 1f544cc58794cffe5d5cac5a83efde91154f1b7d, X starts to work again, but cairo-dock is not rendering anything (click on the "invisible" icon brings up program, though), and gnome-terminal doesn't render anything in its console part (see attachment).
Going all the way to the latest commit (85e1fa55066783d2748993810708dee6db7a4993) does not help.
I'm on a ATI Mobility Radeon HD 4530 512MB with git-sources-3.0-rc7:
# lspci -nn | grep VGA
02:00.0 VGA compatible controller : ATI Technologies Inc M92 [Mobility Radeon HD 4500/5100 Series] [1002:9553]
# uname -r
xorg-server is 1.10.3 (as shown in `X -version`).
libdrm is at commit 8d055890d90c3d92647e3d8b98d32630ef87c2c8.
xf86-video-ati is at commit e8d0d437957b15252dfad775796a3949ed50dbcf.
However, another computer with a HD 3300 doesn't have the problem, everything was great with this card:
# lspci -nn | grep VGA
01:05.0 VGA compatible controller : ATI Technologies Inc Radeon HD 3300 Graphics [1002:9614]
Created attachment 49064 [details]
window only repaint on resize
Created attachment 49065 [details]
window only redraw part of itself on maximize
Created attachment 49066 [details] [review]
Does the attached patch help?
(In reply to comment #3)
> Created an attachment (id=49066) [details]
> Does the attached patch help?
nope it doesn't.
(In reply to comment #4)
> (In reply to comment #3)
> > Created an attachment (id=49066) [details] [details]
> > Patch
> > Does the attached patch help?
> nope it doesn't.
btw, there's no src/gallium/drivers/r600/eg_state_inlines.h in my tree (mesa master).
I found that r600_translate_colorformat() is in evergreen_state.c and comment the stuff there.
If I switch to a non-composite window manager (emerald -> metacity) then the windows (both cairo-dock and gnome-terminal) starts to render correctly.
I think that's a r700 card, so changing evergreen_state.c probably won't do much.
Okay, I found it DOES impact my Radeon HD 3300, too.
If I turn on "Loose Binding" option in fusion-icon, both computer have the same problem (not properly rendering itself).
If I turn that option off, both computer starts to render correctly (with commit 7e2827fad95071e04e382be0117c654445764c52).
I previously had "Loose Binding" off on the HD3300 and didn't realize that.
I think this is another problem instead of colorformat.
I added some debug output in st_choose_format() (st_format.c).
With 98ce1373e47d05d7150933c391fdeddbc897a3cd it does print something:
st_choose_format(): return PIPE_FORMAT = 1
st_choose_format(): return PIPE_FORMAT = 19
most of them are 1.
But with commits after that, it doesn't print anything.
I think it's not taking that path anymore.
(In reply to comment #6)
> I think that's a r700 card, so changing evergreen_state.c probably won't do
thx for pointing this out.
this time I patched the function "r600_translate_colorformat()" in file "r600_state.c".
and it's all working again now.
and I found the buggy pipe_format is 67 (PIPE_FORMAT_R8G8B8A8_UNORM).
Can you please test the latest mesa/master
A patch that should resolve your issue has been pushed 
commit d84791a72b33f96fab54ff2399e8053c50205454 does address this bug.
on Jul 25, 2016 at 00:14:07.
(provided by the Example extension).