Hi Heinrich, On Mon, 7 Nov 2022 at 09:18, Heinrich Schuchardt <xypron.g...@gmx.de> wrote: > > On 11/7/22 16:28, Simon Glass wrote: > > Hi Jan, > > > > On Mon, 7 Nov 2022 at 06:50, Jan Kiszka <jan.kis...@siemens.com> wrote: > >> > >> On 04.11.22 20:08, Simon Glass wrote: > >>> Hi, > >>> > >>> On Fri, 4 Nov 2022 at 02:07, Jan Kiszka <jan.kis...@siemens.com> wrote: > >>>> > >>>> From: Jan Kiszka <jan.kis...@siemens.com> > >>>> > >>>> Before clearing the screen, ensure that no previous output of firmware > >>>> or UEFI programs will be overwritten on serial devices or other > >>>> streaming consoles. This helps generating complete boot logs. > >>>> > >>>> Tested regarding multi-output against qemu-x86_defconfig. > >>>> > >>>> Signed-off-by: Jan Kiszka <jan.kis...@siemens.com> > >>>> --- > >>>> lib/efi_loader/efi_console.c | 8 +++++++- > >>>> 1 file changed, 7 insertions(+), 1 deletion(-) > >>> > >>> Please see this thread...some things need to be improved in this area. > >>> > >>> https://patchwork.ozlabs.org/project/uboot/patch/20221022092058.106052-1-heinrich.schucha...@canonical.com/ > >>> > >> > >> Is there a conclusion already? Is there something that I can attach to > >> to resolve this issue here? > > > > So far as I am concerned, there is a conclusion :) I provided a lot of > > detail in the thread linked above. > > Simon, if you want to filter output on the sandbox you may do so in the > serial driver of the sandbox. It is not related to the UEFI code.
>From what I can tell this problem also affects the qemu CI tests. It seems that UEFI needs ANSI so this appears to be a UEFI thing. I haven't actually noticed any other use of ANSI sequences in some years of using U-Boot. Regards, Simon