Mattia Oss wrote: > BUT, I made a progress. :) > I installed linux-source-4.9 and compiled the kernel with the 4.8.0-1 > config. The result: it boots fast! :) >
printk.time=1 as kernel param at boot would help you find out where it slows down. It looks like something takes more time to initialize, might be because in 4.8.0-2 it is a module. There were also some interesting stories about inteldrmfb, but I can't recall - it might be related. > This is the kernel log of the custom kernel: > https://github.com/maistoast/share/blob/master/kernel/log/4.9.2/dmesg_4.9.2--bymattia > > As you can see it uses simplefb and not vesafb. I'm quite sure that this > is the problem. As Sven Joachim pointed out, the Debian devs disabled > simplefb because it has problems with KMS framebuffer. Reading the link > he provided they disabled the X86_SYSFB and FB_SIMPLE options to fix > some bugs. I think there's no solution for me because these options are > not enabled in the Debian kernel anymore.. :/ > > Se either I use a custom kernel, or I keep my sweet fat characters with > the Debian kernel. I prefer to build and keep custom kernel regards
