[Bug 39964] New: Resolution lower than 1440x900 graphic artifatcs

https://bugs.winehq.org/show_bug.cgi?id=39964

Bug ID: 39964
           Summary: Resolution lower than 1440x900 graphic artifatcs
           Product: Wine
           Version: 1.7.55
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Hi,

unfortunately within my configuration several (but I could say 'all') old game
I tried to execute in a resolution lower than 1440x900 shows flashing graphic
artifacts.

First of all my configuration:

- Software: Gentoo x64 Mesa 11.1.0 - Gallium v0.4 - any version of Wine from
the 1.4 to 1.7.55 (I could say 'any' version because I'm trying them also with
PlayonLinux, not only but also ;) and of course the anomaly appears in both
way)

- Hardware: AMD R9 290X Intel Core I7 CPU

Then game names:

- Sacred
 - Divine Divinity
 - Pharaoh

Now, I'm not totally sure it's only a Wine bug because with AMD Catalyst this
exact issue is not there but anyway I'm opening a bug here to check Wine
behaviour with OSD drivers: maybe there is something wrong?

How can I help in the analysis?