[Bug 40804] New: Touhou 6, 7, 8, 10, 11 have severe fps drop.

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=40804

            Bug ID: 40804
           Summary: Touhou 6, 7, 8, 10, 11 have severe fps drop.
           Product: Wine
           Version: 1.9.12
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: asaygashev at mail.ru
      Distribution: ---

The problem arises on a laptop with Intel i7-5500U processor (HD 5500 Graphics)
+ Nvidia GeForce 940M.
OS: Arch Linux with linux 4.6.2-1-zen.
Regular Xorg Intel drivers are installed (xf86-video-intel
1:2.99.917+662+gb617f80-1) + Nvidia drivers with Bumblebee.
Using 
Option "DRI" "3"
in xorg.conf as extra parameter in Intel card.

Now the problem:
Touhou 6 runs at 20 fps.
Touhou 7 runs at 20 fps.
Touhou 8 runs at 30 fps.
Touhou 9 runs flawlessly at 60 fps [!!!].
Touhou 10 runs at 30 fps.
Touhou 11 runs at 30 fps.

The same problem persists when running Touhou 8 and 10 on the same hardware
with Debian 8.

To make things even crazier I tried running these games on virtualized Debian
(Virtualbox 5.0.20-1) on the same Arch Linux on the same macchine and could
get:
Touhou 6 -> 60 fps in menu with broken keyboard input.
Touhou 7 -> 60 fps in menu with broken keyboard input.
Touhou 8 -> 60 fps in menu, 40 fps in game with broken keyboard input.
Touhou 9 -> still working perfectly.
Touhou 10 -> 60 fps in menu, 40 fps in game with broken keyboard input.
Touhou 11 -> 45 fps in menu, 30 fps in game.

that's wine output of a regular run:
$ wine th08.exe 
fixme:win:EnumDisplayDevicesW ((null),0,0x32f8a4,0x00000000), stub!
fixme:win:WINNLSEnableIME hwnd (nil) enable 1: stub!
$


Other things tried but got no improvements in fps:
- Changing kernel from standard arch to zen;
- run with nvidia (optimus, primus), nouveau;
- tweaking with xorg.conf changing parameters on graphic cards;
- renicing;
- changing cpu governor settings;
- changing scheduling settings;
- replacing wine d3dx9_36, d3dx9_37, d3dx9_43 with windows files.

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