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kc3-lang/SDL
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Author :
Sam Lantinga
Date : 2020-12-15 12:22:48
Hash : f8839289
Message : Potential fix for bug 5393 - KMSDRM: using atomic mode setting breaks GPU compatibility Substring I was trying the KMSDRM video backend with some very simple programs that were working ok on 2.0.12. The same code won?t work on the current dev branch and I get: DEBUG: check_modesetting: probing ?/dev/dri/card0? DEBUG: /dev/dri/card0 connector, encoder and CRTC counts are: 4 5 6 DEBUG: check_modesetting: probing ?/dev/dri/card0? DEBUG: /dev/dri/card0 connector, encoder and CRTC counts are: 4 5 6 DEBUG: KMSDRM_VideoInit() DEBUG: Opening device /dev/dri/card0 DEBUG: Opened DRM FD (3) DEBUG: no atomic modesetting support. DEBUG: Video subsystem has not been initialized INFO: Using SDL video driver: (null) DEBUG: Video subsystem has not been initialized After carefully checking, the radeon driver doesn?t support atomic modesetting. That?s not the only problem : the same happens with the amdgpu driver if we disable Display Core (kernel parameter amdgpu.dc=0, which is required to get analogue outputs working). This is a major regression in the KMSDRM driver. Using atomic mode setting is great, but having no fallback to the "standard KMS" is bad.
- Files
- .hgignore
- Android.mk
- BUGS.txt
- CMakeLists.txt
- COPYING.txt
- CREDITS.txt
- INSTALL.txt
- Makefile.in
- Makefile.minimal
- Makefile.os2
- Makefile.pandora
- Makefile.psp
- Makefile.wiz
- README-SDL.txt
- README.txt
- SDL2.spec.in
- SDL2Config.cmake
- TODO.txt
- VisualC
- VisualC-WinRT
- VisualC.html
- WhatsNew.txt
- Xcode
- Xcode-iOS
- acinclude
- android-project
- android-project-ant
- autogen.sh
- build-scripts
- cmake
- cmake_uninstall.cmake.in
- configure
- configure.ac
- debian
- docs
- include
- sdl2-config-version.cmake.in
- sdl2-config.cmake.in
- sdl2-config.in
- sdl2.m4
- sdl2.pc.in
- src
- test
- visualtest
- wayland-protocols
- README.txt
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Simple DirectMedia Layer (SDL) Version 2.0 --- https://www.libsdl.org/ Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games. More extensive documentation is available in the docs directory, starting with README.md Enjoy! Sam Lantinga (slouken@libsdl.org)