topic Re: How to remove framebuffer and GPU functions in i.MX Processors

How to remove framebuffer and GPU functions

jiongzhongliu — Mon, 08 May 2017 09:08:50 GMT

my board is IMX6Q-SABRESD,and used linux3.14.52.Now my project do not need display function,so I want to remove the codes about the framebuffer and GPU,and the system can boot as quickly as possible,becauss the fb and gpu initialize consume too much time.

I use make menuconfig to remove the framebuffer moudle and change the device tee to remove ldb node. and the linux image can be lunch, but after the linux system run about a few seconds, the system died! How can it happen?

If I want to remove framebuffer and GPU functions, is there something I shall do? thanks!

Re: How to remove framebuffer and GPU functions

igorpadykov — Mon, 08 May 2017 10:07:33 GMT

Hi jiongzhong

please try minimal configuration "core-image-minimal"

described in Table 1. Freescale Yocto project images attached Yocto Guide.

Best regards
igor
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Re: How to remove framebuffer and GPU functions

jiongzhongliu — Thu, 11 May 2017 02:06:08 GMT

I do not use yocto, when I remove the module " device drivers-->graphics support-->support for frame buffer devices",althought the system can boot up and also can login,but the system died after a few seconds. The system is run in level 3.and I also remove the touchscreen drivers.