How to make two LCD screen(both 1024x768) to display diffrent images using IMX6Q-SABRE-SDB?

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How to make two LCD screen(both 1024x768) to display diffrent images using IMX6Q-SABRE-SDB?

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yoda2010
Contributor I

I have two LCD screens, both 1024x768, LVDS interfaces. I want to make one as main display, the other one as 2nd display, in extention mode in higer resolution,e.x. 1920x1080. Can this be done using imx6q-sabresd-SDB board with 2 LVDS channel? If can, which source file should be modified?

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yoda2010
Contributor I

Thank you for your help. Now I have a full HD display(1920x1080) which has 2 chennel LVDS ports. How can I get 1920x1080 resolution using LVDS0/1 on sabresd-imx6q? And how should I set the cmdline?

I tried like this:

setenv bootargs console=ttymxc0,115200 init=/init ldb=spl0/1 video=mxcfb0:dev=ldb,1920x1080M@60,bpp=32 video=mxcfb1:dev=ldb,1920x1080M@60,bpp=32 video=mxcfb2:off fbmem=20M,20M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale

The full HD display works but the resolution seems not right. How should I modify the cmdline to get really full HD resolution? Does Android OS support such high resolution?

ps: I use Android 4.2.2_1.1.0 downloaded from Freescale website to boot up.

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LeonardoSandova
Specialist I

No file to be modified, just the bootargs for video parameters:

https://community.freescale.com/docs/DOC-93449

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Yuri
NXP Employee
NXP Employee

Also, please refer to Table 6 (Kernel Boot Parameters) of

"i.MX_6Dual6Quad_SABRE-SD_Linux_Release_Notes.pdf"

https://www.freescale.com/webapp/Download?colCode=L3.0.35_4.1.0_LINUX_DOCS&location=null&fasp=1&Pare...


Have a great day,
Yuri

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