On 2/8/22 16:40, Javier Martinez Canillas wrote:
On 2/8/22 16:23, Geert Uytterhoeven wrote:
[snip]
Fbcon does small writes to the shadow frame buffer, while fbtest writes to the mmap()ed /dev/fbX, causing a full page to be updated.
I see. Thanks for the information.
I found the bug. Partial updates where indeed broken and only a full screen update was working. I didn't notice because where using your fbtests that mmap and do a full update.
Thanks a lot for reporting this, the issue should be fixed in v3.
Best regards,