On Sat, 5 Aug 2023 12:28:16 GMT, Thorsten Fischer <d...@openjdk.org> wrote:

> Hi,
> 
> I did open the bug report. Some notes to this PR:
> 
> My colleagues and I are able to reproduce this bug regularly, even though it 
> takes sometimes up to 3 or 4 weeks until the D3DERR_DEVICEHUNG error shows 
> up. We are currently evaluating two versions of fixes, but until now we do 
> not have any results. I will post them as soon as I got them.
> 
> Version 1 (this version): Based on the observation, that the 
> TestCooperativeLevel/CheckDeviceState method returns D3D_OK again after about 
> 20 - 60 seconds, the reinitialize is called after the first time the state is 
> returning D3D_OK. The 'isHung' flag stores the information until then.
> 
> Version 2: calls reinitialize directly after D3DERR_DEVICEHUNG has been 
> returned. Basically
> if (hr == D3DERR_DEVICEREMOVED || hr == D3DERR_DEVICEHUNG  ) { .. }
> 
> I did not modify the validatePresent method, as for our workaround (see 
> ticket) it was not necessary. At least the native call swapchain->present 
> dows not return that error code 
> (https://learn.microsoft.com/en-us/windows/win32/api/d3d9/nf-d3d9-idirect3dswapchain9-present).
>  I did not look decisively into all the native calls behind 
> D3DRTTexture#readPixels.
> 
> As I said I will post the results (prism.verbose output) for the 2 versions 
> later as a base for discussions.

This pull request has now been integrated.

Changeset: b80ec391
Author:    Thorsten Fischer <39555455+ts...@users.noreply.github.com>
Committer: Kevin Rushforth <k...@openjdk.org>
URL:       
https://git.openjdk.org/jfx/commit/b80ec391cbba72d84b4b862b3f1b8db2ff8eb6e2
Stats:     24 lines in 2 files changed: 14 ins; 4 del; 6 mod

8313648: JavaFX application continues to show a black screen after graphic card 
driver crash

Reviewed-by: mstrauss, kcr

-------------

PR: https://git.openjdk.org/jfx/pull/1199

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