"BIOS" settings for Cubieboard

582 views
Skip to first unread message

Troels Frimodt Rønnow

unread,
Oct 3, 2013, 9:19:20 AM10/3/13
to cubie...@googlegroups.com
Hi everyone,

I am currently trying to fix overscan problems on a TV which does not offer a "just scan"/auto configuration. Is there somewhere "bios" settings for the card that one can change (similar to the raspberry pi which has a config.txt located in the root)? Or is there another alternative to fix overscan problems? Any solution should work outside of X.

Best,
Troels 

Saverio Proto

unread,
Oct 3, 2013, 11:48:12 AM10/3/13
to cubie...@googlegroups.com
You have to check script.bin and uEnv.txt files. It is bootloader
stuff. Have a look at this documentation:
https://github.com/linux-sunxi/u-boot-sunxi/wiki

Saverio

2013/10/3 Troels Frimodt Rønnow <troels....@gmail.com>:
> --
> You received this message because you are subscribed to the Google Groups
> "Cubieboard" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to cubieboard+...@googlegroups.com.
> Visit this group at http://groups.google.com/group/cubieboard.
> For more options, visit https://groups.google.com/groups/opt_out.

Troels Frimodt Rønnow

unread,
Oct 4, 2013, 3:18:16 AM10/4/13
to cubie...@googlegroups.com
Thanks for your reply.

I have already tried to play around with script.bin. However, it does not seem to be possible to solve my overscan problems with these settings (http://linux-sunxi.org/Fex_Guide). In particular I have tried to change the screen settings in the [disp_init] section. I am looking for something similar to the rasperry pi config.txt (http://elinux.org/RPi_config.txt) which allows modification of overscan. It is my understanding - please correct me if I am wrong - that config.txt is read and load prior the boot sequence, whereas script.bin is loaded as a part of the boot sequence, and therefore config.txt and script.bin seems to be different things to me. Is that so?

What I am looking for are settings like these:
# Make display smaller to stop text spilling off the screen
overscan_left=20
overscan_right=12
overscan_top=10
overscan_bottom=10

found in the config.txt. I would be very happy if anyone could point me in the right direction. uEnv.txt neither seems to be capable of solving my problem (https://www.kernel.org/doc/Documentation/kernel-parameters.txt).

Alternatively, a software solution would also be acceptable. I have heard of a tool called "setwindow", but I have not been able to figure out which package it is located in. If anyone knows about such tools I would also be very happy to hear about it.

Thanks,
Troels
Reply all
Reply to author
Forward
0 new messages