Re: display background image problem

[Andrei Borzenkov]

14.03.2017 00:13, Belisko Marek пишет:
> Hi Andrei,
> 
> On Mon, Mar 13, 2017 at 6:30 PM, Andrei Borzenkov <address@hidden> wrote:
>> 12.03.2017 22:40, Belisko Marek пишет:
>>> Hi,
>>>
>>> I'm trying in grub 2 display background image. I compiled grub for my
>>> board using yocto build system. I added video modules + gfxterm to
>>> have backgorund_image command available. When run background_image
>>> root/image.png I got:
>>> error: no video mode activated
>>>
>>> When check videoinfo command I can see that there is efi_gpo video
>>> module with various screen resolutions. It seems that
>>> grub_video_adapter_active is not set and  thus that error. I'm not
>>> very familiar with grub debugging because it seems that this message
>>> is called during startup. Any ideas how to proceed? Many thanks.
>>>
>>
>> Please show exact command used to create image as well as your grub.cfg.
> Copied from yocto output:
> 
> grub-mkimage -c ../cfg -p /EFI/BOOT -d ./grub-core/ \
>                        -O x86_64-efi -o ./bootx64.efi \
>                        boot linux ext2 fat serial part_msdos part_gpt
> normal efi_gop iso9660 search gfxterm video png videoinfo videotest
> all_video video_fb fixvideo
> 
> and grub cfg looks like:
> 
> # Automatically created by OE
> serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
> default=boot
> timeout=3
> 
> menuentry 'boot'{
> linux /vmlinuz root=/dev/sda2 rootwait net.ifnames=0 quiet splash loglevel=0
> }
> 

You need to activate gfxterm output driver; default is plain console.

terminal_output gfxterm

You need to set gfxmode first, as currently this is the only way to set
video mode.

> I tried to enter to command line and run:
> set gfxmode=1024x768
> and after background_image root/splash/image.png I got mentioned error.
> 
> Is there any way to debug finding of video adapters? Thanks.
> 
> BR,
> 
> marek
> 
> 
> 
> 
>