Modern Graphics from Boot to Shutdown and Retiring fbdev
Автор: SUSE Labs
Загружено: 2022-10-24
Просмотров: 870
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by Thomas Zimmermann at SUSE Labs Conference 2022
Thanks to our conference sponsors, ARM and HPE, and our hosting sponsor and BigBlueButton provider, Blindside Networks.
This presentation gives an overview of Tumbleweed's recent move to a fully DRM-based graphics stack and the removal of the fbdev drivers. This mainly concerns of how Linux picks up a framebuffer from the BIOS/UEFI, displays some nice graphics during boot and finally hands over the graphics card to the native driver.
Until recently, early-boot graphics before the device hand-over involved the kernel's fbdev subsystem. This created various problems throughout kernel and userspace. It also prevented us from providing a useful fall-back environment on systems w/o native graphics driver.
Finally, there will be an outlook to (possible) future developments of the Linux graphics stack and the ideas that are being discussed.
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