Hi, On 27/10/17 20:13, Sebastian Reichel wrote: > Hi, > > On Fri, Oct 27, 2017 at 12:04:32AM +0200, Merlijn Wajer wrote: >> On 26/10/17 23:56, Sebastian Reichel wrote: >>>> [...] >>> This smells like -EPROBE_DEFER in "panel-dsi-cm". Check the dyndbg >>> entries in this presentation to see how to debug the issue: >>> >>> https://elinux.org/images/8/83/Plumbers_2016_dt_device_tree_tools.pdf >>> >>> Looking at the log it might be the backlight. Do you have an entry >>> in /sys/class/backlight? >> >> Nothing in /sys/class/backlight/ - there are also no modules loaded that >> match the pattern 'back' (lsmod | grep back). > > ok, this is probably an autoloading issue. I currently compile static > kernels (everything builtin), since that is easier for my development > workflow. (So I did not test this). You should be able to get > backlight by modprobing the backlight driver (modprobe ti-lmu-backlight). Yes - this worked! Now I have /dev/dri, the X11 modesetting driver works, and both HDMI and LCD work. :-) > For now I suggest to enable BACKLIGHT_TI_LMU=y (you need to enable > some dependencies for that). I will have a look at this before I > send the next revision of the backlight support. Sounds good. Cheers, Merlijn
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