Cubieboard2 - XORG Config - TV Out

[Samyael]

I recently acquired a Cubieboard2 as a learning device and for a DIY tablet project I got inspired to do. I am trying to get Composite video to work correctly since I only have a TV with RCA A/V and irrationally not in the mood to deal with wiring VGA.

At the moment I have composite video working - I get the boot messages and get to the login screen but I have a couple problems I need help with.

A) The text is cut off slightly to the left - Ex: [OK] in the boot lines only reads K]

B) It will not display a display manager - Have tried GDM and LightDM.

Is there a specific X server configuration to fix these issues? Maybe some modification to uEnv.txt?

Any help would be appreciated.

[WarheadsSE]

Have you installed any video drivers yet?

[Samyael]

Basic install from the Installation page under the Cubieboard2 package page.

It is up to date as of 10:00pm UTC-7 3/24/2014

I have installed:
alarm/xf86-video-fbturbo-git
aur/cubieboard-modules-load

uEnv.txt reads
$this->bbcode_second_pass_code('', 'console=ttyS0,115200 console=tty0')

/usr/lib/modules-load.d/cubieboard.conf reads

$this->bbcode_second_pass_code('', '
#For SATA Support
sw_ahci_platform

#Display and GPU
lcd
#hdmi
ump
disp
mali
mali_drm
#8192cu
fbcon
')

*Note* systemd-modules-load fails due to mali-drm not being found.

/boot/script.bin is unchanged except for disp_init
$this->bbcode_second_pass_code('', '
[disp_init]
disp_init_enable = 1
disp_mode = 0
screen0_output_type = 2
screen0_output_mode = 14
screen1_output_type = 2
screen1_output_mode = 14
fb0_framebuffer_num = 2
fb0_format = 10
fb0_pixel_sequence = 0
fb0_scaler_mode_enable = 1
fb1_framebuffer_num = 2
fb1_format = 10
fb1_pixel_sequence = 0
fb1_scaler_mode_enable = 1
')

[WarheadsSE]

$this->bbcode_second_pass_quote('', 'a')ur/cubieboard-modules-load

[Samyael]

Yeah, to set it up I've been going back and forth between linux-sunxi wiki/forums and here but have not found much on dealing with Composite Video outside of changes to disp_init and how to wire it.

[Samyael]

I got it working so it now shows GDM. I followed the directions on this thread:
http://archlinuxarm.org/forum/viewtopic.php?f=33&t=5979

The only problem I still am having is the TV is overscanning the output. But that is a TV issue not a Cubieboard/driver issue.

[Samyael]

Something I've noticed while trying to work with the display output is that the aspect ratio is coming out 3:2 when it should be 4:3 for NTSC.

Taking that into consideration, that is probably what is causing my overscan issue.

Does anybody have any suggestions on how one might go about fixing that?