Wii U / Video: Fixed resume of video afrer the home menu close #107
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Wohlstand
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Wohlstand
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@GaryOderNichts, can you remind me what's left to test/ensure until merge this? |
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Were there any issues with doing it like this ad29a9f? Since this is a workaround only necessary for swap intervals of 0, it might be the simpler solution. I would prefer moving it into |
My workaround that I did, is supposed to perform save/restore, and it just worked. I could try the thing you suggested, and if it will work, then flawless, but if it fails, then just keep my initial workaround. |
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I'll try to test after some hours (I'll be busy), or tomorrow if I forget or I will be too sleepy. |
This bug happens just when V-Sync is off and attempting to open and close the home menu. To fix the black/frozen screen it's just enough to call the `GX2SetSwapInterval(0);` right after entering the foreground back.
Wohlstand
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Okay, I done the test, and the small thing seems just fine! I applied it to the pull-request right now. The test of the tweak that you sent to me: 2025-09-23_23-14-21-rekod-discord.mp4The control test over clear 2025-09-23_23-09-45-rekod-discord.mp4 |
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Can you move the workaround into |
Uno momento... |
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And also, I should test the thing after all to ensure it WORKS. |
I tested, if I move to
All the cases just failed. But once I place this gall at But, now I moved it out of Just few evidences for
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Implement workaround for SDL bug where GX2SetSwapInterval(0) causes black screen after returning from HOME menu. When leaving foreground, GX2 silently restores swap interval to 1, but SDL doesn't reapply zero-interval mode after regaining foreground, causing render thread to stop presenting frames. Changes: - Force VSYNC enabled on Wii U in SetVideoMode() renderer creation - Prevent VSYNC toggle from disabling VSYNC on Wii U in all games - Add detailed comments explaining the SDL bug and workaround - Only affects Wii U builds via __WIIU__ preprocessor guards This workaround keeps GX2SetSwapInterval(1) active so the system's reset matches what SDL expects, preventing the black screen hang. Long-term solution: Rebuild SDL with PR devkitPro/SDL#107 which adds proper GX2SetSwapInterval(0) reapplication in WIIU_ForegroundAcquired().
This bug happens just when V-Sync is off and attempting to open and close the home menu. To fix the black/frozen screen it's just enough to call the
GX2SetSwapInterval(0);right after entering the foreground back.P.S. I checked on the WUT side, and seems, such workaround is required since it's a bug of the Wii U firmware itself.
Description
Demo of buggy behaviour at my project:
2025-07-08_00-47-13.mp4
Demo of the fixed behaviour at my project:
2025-07-08_00-53-01-rekod-discord.mp4
Unexpectedly, this bug affects the EasyRPG (ping @Ghabry to use the newer SDL2 for Wii U after this fix arrive) too when disabling V-Sync, and re-enabling V-Sync restores back the screen:
2025-07-08_00-58-03-rekod-discord.mp4