display issue when connecting lvds display to nitrogen6x boa

[WarheadsSE]

Hi ,
I am trying to interface or connect Nit6x_1024x600 LVDS display to freescale imx6q nitrogen6x board. Can any body tell me what is the boot-args we have to set for this.
My printenv command output shown below,
$this->bbcode_second_pass_code('', '
bootargs console=ttymxc1,115200 video=mxcfb1:dev=ldb,1024x600M@60,if=RGB666
baudrate=115200
board=nitrogen6x
bootargs=console=ttymxc1,115200 video=mxcfb0:dev=ldb,1024x600M,if=RGB666 vmalloc=400 video=mxcfb1:off fbM
bootargs_base=mxcfb0:dev=ldb,1024x600M@60,if=RGB666
bootcmd=run bootcmd_mmc
bootcmd_mmc=run bootcmd_base ;for disk in 0 1 ; do mmc dev ${disk} ;for fs in fat ext2 ; do ${fs}load mme
bootdelay=1
clearenv=if sf probe || sf probe || sf probe 1 ; then sf erase 0xc0000 0x2000 && echo restored environmei
console=ttymxc1
cpu=6Q
ethact=FEC
ethaddr=00:19:b8:01:18:ed
ethprime=FEC
kernel=uImage
loadaddr=0x10800000
loadsplash=if sf probe ; then sf read ${splashimage} c2000 ${splashsize} ; fi
panel=wsvga-lvds
rd_loadaddr=(0x10800000 + 0x300000)
uboot=u-boot.bin
upgradeu=for dtype in sata mmc ; do for disk in 0 1 ; do ${dtype} dev ${disk} ;for fs in fat ext2 ; do $e
video=mxcfb0:dev=ldb,1024x600M@60,if=RGB666
')
First time Penguin logo will come during boot-up, after nothing is visible in display. Can anybody tell me what is the problem.

Regards,
Ashwath

[WarheadsSE]

What do you mean first time, as in comparison to what?

Logo comes up at uboot, every time? Only once? Ever?

Logo comes up at uboot, but no screen for linux?

You do need to load a driver and or fbconsole.

[ashwath]

Hi WarheadsSE,
I am new to Imx6q please correct me if I am wrong in the concept written here .
The first time meant was initially when the board starts to boot-up during that time linux logo is visible on the display.
Logo comes at uboot every-time when the board boots up.
Actually I thought it is the issue with boot-args like lvds display is using fb0 or fb1.
And also I tried to change 6q_bootscript , after that board did not boot-up, it stopped at u-boot itself.
Can we edit 6q_bootscript or it is generated by u-boot during board boot-up. ?
I am looking for a link which explains step by step procedure to interface LVDS display to nitrogen6x board.
Regards,
Ashwath

[WarheadsSE]

With your previous config, that DID NOT stop u-boot, how did you know it was not booting?

[ashwath]

hi,
With the previous configuration of u-boot board was booting without any error in the prompt. Using setenv bootargs I am able to set the bootargs environment variable in the u-boot prompt. After that I will be doing saveenv to save it in memory. The same thing is not visible in 6q_bootscript.
In u-boot prompt if I configure display for LVDS, in 6q_bootscript it will show for some other display.
Weather that can be the problem??

Regards,
Ashwath

[ashwath]

Hi ,
Can you suggest the driver for the above display(Nit6x_1024x600). Is it ldb driver or any other driver?

Regards,
Ashwath