Hi Heinrich, On Tue, 21 Nov 2023 at 04:58, Heinrich Schuchardt <heinrich.schucha...@canonical.com> wrote: > > Hello Simon, > > I have built efi-x86_app64_defconfig on v2024.01-rc3. > > On my laptop the video output appears twice. See > https://gist.githubusercontent.com/xypron/24ceedb749a68031790864c3a35c5f30/raw/30068496f43e5b088300748d062d0ad64674bf46/screenshot_efi-x86_app64.jpg > > Are we accessing the video buffer directly instead of using the EFI API?
Yes...well we are using EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID (drivers/video/efi.c) but I suspect we are also writing to the serial port (drivers/serial/efi.c) If you adjust stdout does that help? Regards, Simon
