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  1. JDK
  2. JDK-5103182

REG: Switching the display mode prevents VImage from being accelerated, on win32

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    • 2d
    • x86
    • windows_xp

      I am running a volatile image application on a win_xp machine and I am changing the display mode from 1024X768 to 1152X864 when the app is running. This makes the volatile image deaccelerated where the image capabilities obtained from VImage returns 'false' for isAccelerated(). This occurs only after the display mode change and VImage was accelerated before.

      This is reproducible on WinXP since Tiger-beta-b13 and not reproducible on 1.4.2. Hence this is a regression introduced in tiger-beta.

      I checked the list of bug fixes went into b13 and found that the following bug has been integrated into b13:
      4894800: Regression: display mode switching broken for fullscreen application.

      I have attached a sample test. Execute the sample test. Watch the console. VImage's isAccelerated() should be shown as 'true'. Change the display mode. After this, check the console. If Vimage's isAccelerated() returns false, the bug is reproduced.

      I am using a NVidia GeForce4 MX4000 video card.

            chaasesunw Chet Haase (Inactive)
            pmohansunw Praveen Mohan (Inactive)
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