I’ve finally done with it! I’ve ported fbdev from 4.4 kernel, and looks like it works.
4 Likes
I need some time to check and describe it.
Bad news - the sd-card slot on my R2 has been broken - it can’t hold sdcard anymore (You can see “waiting for root” on video ). It has contact only while i’m pushing to card. I probably can bot from EMMC, but i steel need sd to install image.
So i’m out of buissnes for some time.
And we steel need more tests. As for me - both Xorg and framebuffer work!
can you share your ported fbdev and xserver-config?
I’ve created the pull request on github, check it please. (it’s a bit draft, so if @Ryder.Lee or someone qualified will can to audit it, that would be great! As I’m not a driver developer 
)
I didn’t made any scpecial chandes to Xorg config. It’s default.
And also CONFIG_DRM_FBDEV_EMULATION=y should be activated
the pull-request from Alex: https://github.com/frank-w/BPI-R2-4.14/pull/23/files
@Ryder.Lee can you take a look on it? if you say it’s right i merge it to hdmi-branch so i can also test it…my hdmi-cable should arrive today (needed a longer one)
@DeadMeat imho you can add CONFIG_DRM_FBDEV_EMULATION=y to fwu_defconfig in your branch and the pullrequest should be updated…
Done. The pull request has been updated.
Looks good to me. You can take this through your tree.
2 Likes
have included it into 4.16-hdmi branch. @DeadMeat have you additional settings in uEnv.txt to get console-output over hdmi like i mentioned above?
ok, you used the default uEnv.txt from ubuntu-image…
is card recognized on host-pc? what says badblocks?
Absolutely.
The card is OK, it’s a mechanical problem - ‘click&hold’ mechanism seems to be broken, so card slot can’t hold the card.
oh, thats very bad
does the card hold inside or is it thrown out a bit?
can you send me the uEnv.txt, so that i can compare with my own?
#
## uEnv.txt
#
bpi=bananapi
board=bpi-r2
chip=mt7623n
service=linux
#
##
#
kernel=uImage
#
##
#
kaddr=0x84000000
rdaddr=0x86000000
#
##
#
#root=/dev/ram
root=/dev/mmcblk0p2 rootfstype=ext4 rootwait
console=earlyprintk console=tty1 fbcon=map:0 console=ttyS0,115200
bootopts=vmalloc=496M debug=7 initcall_debug=0
#
##
#
abootargs=setenv bootargs board=${board} console=${console} root=${root} service=${service} ${bootopts}
#
##
#
ahello=echo Banana Pi ${board} chip: $chip Service: $service
#
##
#
aboot=if fatload $device $partition $rdaddr ${bpi}/berryboot.img; then bootm $kaddr $rdaddr ; else bootm $kaddr; fi
#
##
#
aload_kernel=fatload $device $partition $kaddr ${bpi}/${board}/${service}/${kernel}
#
##
#
uenvcmd=run ahello abootargs aload_kernel aboot
#
## END
#
1 Like
you have the related settings set (in my uEnv missing):
console=tty1 fbcon=map:0Probably it’s OS image related.
The card drops on any inaccurate movement.
got my cable, and i see fb-console-output (have not yet xserver installed)…
only issue i have is that screen is not centered (login-prompt not visible), now i search a configuration option to fix this…most instructions are for grub 
[16:50] root@bpi-r2:~# cat /sys/class/graphics/fb0/modes
U:1920x1080p-0
[16:51] root@bpi-r2:~# fbset -fb /dev/fb0 -g 1920 1080 1920 1080 16
ioctl FBIOPUT_VSCREENINFO: Invalid argument
[16:53] root@bpi-r2:~# echo U:1920x1080p-0 > /sys/class/graphics/fb0/mode
[16:53] root@bpi-r2:~#
still no change
installed xserver-xorg and xinit
[16:57] root@bpi-r2:~# less /var/log/Xorg.0.log |grep EE
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 931.136] (EE) AIGLX: reverting to software rendering
[ 931.137] (EE) AIGLX error: dlopen of /usr/lib/arm-linux-gnueabihf/dri/swrast_dri.so faile)
[ 931.137] (EE) GLX: could not load software renderer
[ 931.729] (EE) Server terminated successfully (0). Closing log file.
after installing libgl1-mesa-dri
[17:02] root@bpi-r2:~# less /var/log/Xorg.0.log |grep EE
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 1319.003] (EE) AIGLX: reverting to software rendering
[ 1319.495] (EE) Server terminated successfully (0). Closing log file.
playing around with disp-options in uenv.txt from here [how to]the final solution of compulsive modification of HDMI output resolution, but also no success
it’s a long time ago i have configured last time a x-server manually 
my servers are headless, maybe only a vncserver, which have not to be configured, clients are all ubuntu
logs showing no real error as far as i see
Xorg.0.log (21,0 KB) dmesg.log (85,0 KB)
after installing lxde i got a graphical interface, still not correctly aligned, but a step further. Problem before is fixed (i guess missing displaymanager)
additionally i had to install “policykit-1”
the alignment-problem is also fixed by realigning-function of the TV…nothing to do on bpi-r2
Hello, Frank
As i know driver supports only 32bit color depth, so u probably should try
fbset -fb /dev/fb0 -g 1920 1080 1920 1080 32
If I get you right, You’ve finnaly solved your aligment problem by TV-settings? So now You have both framebuffer and Xserver?
Right,both working…but it will be nice to set the resolution of console (make font larger).
I need to know how to set Resolution (hdmi mode) in uboot (if cec fails). I will try out vga and dvi-adapters next days.