topic Re: VGA problem in IMX53 Sabre ARD in i.MX Processors

VGA problem in IMX53 Sabre ARD

MadhusudhananRa — Tue, 07 Feb 2012 06:57:33 GMT

Hi Guys,

Anyone tried using VGA on the IMX53 sabre ard board (Board: MX53-ARD Rev. B as per uboot)

I use LTIB 11.05.01 kernel but dont see anything coming on the monitor screen (montior LED keeps blinking)

I tried bootargs for the video as follows:

video=mxcdi1fb:GBR24,1024x768M-16@60 di1_primary ard-vga

video=mxcdi1fb:RGB666,XGA di1_primary ldb=di1 ard-vga

PS: Also I observe when I have ard-vga in my bootags, then the ethernet doent come up (no eth0 device is reported when I do ifconfig -a )

Regards,

Madhu

Re: VGA problem in IMX53 Sabre ARD

Hans-PeterRosin — Tue, 07 Feb 2012 13:58:13 GMT

Hi Madhu,

Have a look at the i.MX53 ARD Linux BSP release notes on page 5

It says:

         Support VGA output.
         Due to the pin conflict with WEIM, please note the following steps when running VGA on MX53 ARD RevB board:
         -add boot option "ard-vga" in kernel launch command line.

             For example video=mxcdi1fb:GBR24,VGA-XGA di1_primary vga ard-vga ldb=off
         -Flash the images on SD or NAND and avoid to use Ethernet.
         -HW configuration: Short PIN1-2 for J14 and J16 on CPU board

Hope this helps,

Hans-Peter