0003722: Image on ET070080 is sometimes shifted to the left on efusA9

ID	Project	Category	View Status	Date Submitted	Last Update

0003722	UBoot	Display	public	2019-01-28 17:23	2019-01-29 11:43

Reporter	Keller	Assigned To
Priority	normal	Severity	minor	Reproducibility	random
Status	resolved	Resolution	fixed
Product Version	fsimx6sx-V2.0
Target Version	fsimx6-V3.1	Fixed in Version	fsimx6sx-V2.1

Summary	0003722: Image on ET070080 is sometimes shifted to the left on efusA9
Description	In Linux, the image on EDT display ET070080 is sometimes not centered on the display, it is shifted to the left. The amount of shifting (offset) depends on the display, some displays have more offset, some less, some are even correct. We assume that the display has problems when there are high levels on the data and clock signals before the logic voltage is activated. Unfortunately, some signals have either pull-ups by default or use the keeper function. So we can not guarantee that the signals are all low. We should switch them to low as soon as possible, for example by enabling the internal pull-down on the display signals.

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