[Bug 104807] blank screen after drm initialization - trekstor twin 10.1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104807

--- Comment #4 from Hans de Goede <jwrdegoede at fedoraproject.org> ---
Hi,

It looks like your kernel tree was not entirely clean when you build the kernel
you used to get the drm.debug=0x1e log. These messages:

[    5.790660] [drm:intel_dsi_vbt_exec_sequence [i915]] Starting MIPI sequence
1 - MIPI_SEQ_DEASSERT_RESET
[    5.790753] [drm:intel_dsi_reset_clocks [i915]] 
[    5.790853] [drm:intel_dsi_reset_clocks [i915]] 
[    5.801010] [drm:intel_dsi_reset_clocks [i915]] 
[    5.801113] [drm:intel_dsi_reset_clocks [i915]] 
[    5.901621] [drm:intel_dsi_reset_clocks [i915]] 
[    5.901723] [drm:intel_dsi_reset_clocks [i915]] 

Should show something else for the ntel_dsi_reset_clocks lines. This typically
happens if you make some changes and try to speed things up by using make
modules M=drivers/gpu/drm/i915 to speed up building. For some reason this
confuses the code injecting the function names in the debug logging.

Can you retry with a clean kernel build and attach a new log ?

Regards,

Hans

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