SDL_WINDOW_FULLSCREEN it's broken on several SDL2 apps .doesn't correctly rescale

_Diablo · September 19, 2021, 12:40am

Hello
I don’t know if there is much nvidia can do here but the authors tell me that the SDL2 API does not get along when implementing full screen include this NVIDIA tegra drivers .

For example in one example open source citra 3ds emulator

github.com

citra-emu/citra/blob/4817b008434e2122679568d1223af4c656f0d2fd/src/citra/emu_window/emu_window_sdl2.cpp#L115


      
              return is_open;
          }
          
          
void EmuWindow_SDL2::OnResize() {
              int width, height;
              SDL_GetWindowSize(render_window, &width, &height);
              UpdateCurrentFramebufferLayout(width, height);
          }
          
          
void EmuWindow_SDL2::Fullscreen() {
              if (SDL_SetWindowFullscreen(render_window, SDL_WINDOW_FULLSCREEN) == 0) {
                  return;
              }
          
          
    LOG_ERROR(Frontend, "Fullscreening failed: {}", SDL_GetError());
          
          
    // Try a different fullscreening method
              LOG_INFO(Frontend, "Attempting to use borderless fullscreen...");
              if (SDL_SetWindowFullscreen(render_window, SDL_WINDOW_FULLSCREEN_DESKTOP) == 0) {
                  return;
              }

But when use borderless fullscreen working fine .

Sorry for quality video Not sure how fixable this the problem is alt+tab and push mouse crash desktop resolution 640x480 when the resolution running in pure fullscreen no bordeless usin SDL2 API .
Regards
Mrc Carlos.

_Diablo · September 21, 2021, 5:12pm

Partially fixes is compile from source

TO DO SDL2 :
git clone GitHub - libsdl-org/SDL: Simple Directmedia Layer
mkdir build/
cd build/
cmake -S /home/aresuser/SDL -B .
sudo make install

Recompile all SDL2 with this problem will be more stable but sometimes when have asertion failback to 640x480

Ubuntu and the stability with some libraries SDL2 and Qt is tedious not only do they not update the libraries but there are broken packages without maintaining them correctly

Compiling from source code becomes much more stable than the canonical package.

DaneLLL · September 22, 2021, 2:29am

Hi,
We don’t have much experience in SDL2. Would need other users to share experience. Good to see that you have worked out a solution.

About graphics development, we have samples in

/usr/src/nvidia/graphics_demos

Please take a look. If you observe issues and suspect it is something wrong in our graphics driver, please help share a patch to either sample and steps. So that we can do further investigation.