install jessie 3.6 > 3.8 root pkg , blank screen

[ecod]

Hi Igor,

 

i installed the new linux-jessie-root-cubietruck_3.8_armhf.deb pkg on CT3.6 (jessie)

I shortly see the device is booting but blank screen comes afterwards.

network (wifi) does not work either.

 

any hint?

thanks so far

 

br

ecod

 

 

[Igor]

Jessie is problematic in general but if you don't get net ... there is/was lately some troubles with u-boot Ethernet controller initialization.

 

Until things are not fully fixed, power off/on helps.

 

If you made an upgrade from older image you need to check boot scripts if they are the same:

https://github.com/igorpecovnik/lib/blob/next/documentation/general-faq.md#optional-steps-if-you-update-kernel-to-older-sd-image

[ecod]

Hi Igor

 

based on your comment I made another test:

 

- the fix eth0 was still working, only the wifi gave up

- the HDMI output is not working, last msg is shown: "starting kernel" or similar

- I will check further on, what happened

 

tnx

[Igor]

 

 

- the HDMI output is not working, last msg is shown: "starting kernel" or similar

setenv bootargs console=tty1 root=/dev/mmcblk0p1 rootwait consoleblank=0

This is probably due too kernel parameter "console". It should be set to tty1 to see the output while booting. This is valid for serial console too - on the new kernel.

 

You need to change u-boot too.

 

For wifi ... check if firmware is there. Is there anything in the log?

[ecod]

Hi Igor

 

it is strange a bit:

the current boot.cmd is:

 

setenv bootargs console=tty1 root=/dev/mmcblk0p1 rootwait sunxi_ve_mem_reserve=0 sunxi_g2d_mem_reserve=0 sunxi_no_mali_mem_reserve sunxi_fb_mem_reserve=16 hdmi.audio=EDID:0 disp.screen0_output_mode=EDID:1280x720p60 panic=10 consoleblank=0
 

and:

if I set only wifi as client, I can not connect to the device

BUT:

if I enable eth0 AND wifi too, both can be used

 

this is weird