Ok pessoal ... Eu construo um kernel RT 4.4.1 e finalmente Eu tenho uma boa e legível mensagem de boot e tela do console! MAS (por que há sempre, MAS):
Gráficos, por exemplo, no alsamixer são realmente ruins, você poderia me dizer por quê?
uname -a
Linux ubuntu 4.4.1-rt6 #1 SMP PREEMPT RT Wed Feb 24 04:27:02 CET 2016 i686 i686 i686 GNU/Linux
sudo lshw -c display
description: VGA compatible controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 21
width: 64 bits
clock: 33MHz
capabilities: pm msi vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:115 memory:80000000-80ffffff memory:90000000-9fffffff ioport:f000(size=64)
sudo lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Device 22b1 (rev 21)
sudo fbset -i
mode "1280x1024"
geometry 1280 1024 1280 1024 32
timings 0 0 0 0 0 0 0
accel true
rgba 8/16,8/8,8/0,0/0
endmode
Frame buffer device information:
Name : inteldrmfb
Address : 0x900c0000
Size : 5242880
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 5120
Accelerator : No
cat / etc / default / grub
GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=false
GRUB_TIMEOUT=3
GRUB_DISTRIBUTOR='lsb_release -i -s 2> /dev/null || echo Debian'
GRUB_CMDLINE_LINUX_DEFAULT="text"
GRUB_CMDLINE_LINUX="console=tty1 console=ttyS0,115200n8"
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command 'vbeinfo'
GRUB_GFXMODE=1280x1024
GRUB_GFXPAYLOAD_LINUX=text
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
ALSAMIXER se parece com isso: