Display
https://www.panelook.com/LTL106AL01-002_Samsung_10.6_LCM_overview_19126.html
Timing
Raw EDID from ACPI
Decoded EDID
Many tools exist which can decode EDID.
On Ubuntu you can use edid-decode
.
The ouput is below...
You can also use this EDID reader page
Translated to devicetree
WIP At the we use a samsung display with same resolution and similar timings which works. But to optimize the devicetree someone has to decode EDID to panel-timings
https://elixir.bootlin.com/linux/latest/source/include/drm/drm_modes.h#L201
https://glenwing.github.io/docs/VESA-DMT-1.12.pdf page 57
GPIOs
Controlling the following GPIOs from UEFI Shell gave the result below. The GPIOs were extracted from ACPI
GPIO | Backlight | Logo | Note | Function |
B2 | Y | N | Image fades out | LVDS power down |
DD0 | N | Y | Logo can bee seen with external light source | backlight power |
DD2 | N | N | Display is dead | panel power |
H0 | N | Y | PWM brightness control | PWM brightness |
Connector
Pin | |
2/3 Panel VDD | GPIO DD2 |
25 BL_PWM | GPIO H0 |
26 Backlight enable | GPIO DD0 |
28/29/30 LED Anode | Always connected to 12V |
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