I have problem with Collibri T20 modules. Recently bought new modules do not start properly if they are quite cold (e.g. from cold room or fridge). On screen are displaying noises and flicker which seems to be hardware problem (in console mode letters are not displaying correctly - attached picture), and kernel booting is lock at always the same line:
Yes, this is a known issue which is believed to be fixed in more recent BSPs. Alternatively the fix may be back-ported aka cherry-picked into older BSPs.
Hi,
This patch works fine with newer version of BSP (e.g. 2.6), but what about older v2.0 or v2.1? Using the same patch in kernel based on “colibri” branch doesn’t work. There is no difference between kernel with or without this patch.
I have to admit that I never tried it with such old versions but would have expected it to fix it there as well. That said those older versions may exhibit various other issues long since fixed. I would therefore recommend using the latest stable kernel with just the following patch reverted in order to still be bootable on older BSPs.