Screen offset issue - Reprap discount full graphic smart controller

I've been having an issue with my screen on my Reprap, it's more of an annoyance than an issue really.

After a few minutes of operation the screen will kinda shift over to the left, with the cut off part wrapping around to the right. I've attached a picture of this.

I have no idea what is causing it, fairly sure it's not marlin as I've used a few different versions with the same result. My guess is that it's a problem with my cheap hardware.

Any suggestions for solving this are welcome

Maybe check that the ribbon cables are seated correctly and go from there.

If it's related to ribbon cable length or bad contact, it would show all kinds of different errors.
Those LCDs are all 'compatible' with a standard LCDs command code. If you happen to have a repeatable mis-function, it's likely it misinterprets one command or even ignores it.

Edited 1 time(s). Last edit at 11/18/2018 10:56PM by o_lampe.

loosen off the screws, they don't like to be squeezed

Looks to me some kind of memory offset shift that I know some displays have to shift the content of the display. If it's consistently doing that it could be a memory issue or a firmware issue. Some displays are made with customizations of other manufacturers and you've picked up a model with such a change. Try a display from a different source.

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Kind regards
Imqqmi

NFAN CoreXY printer:
[reprap.org]

Just tried backing off the screws, no improvement
Thanks for the suggestion though

I think you may be right imqqmi, I'll source a different driver and give that a go when I get some free time.

Thank you everyone for your suggestions, I'll continue to check here if you have any others and I'll be sure to post the fix if I find one

Problem not yet solved?
Is this problem with marlin software, version RC7?

Try this:

Find U8GLIB_ST7920_128X64_RRD u8g(0);
you should find it in tab ultralcd_impl_DOGM.h
make backup (type // in front) and type on new line
U8GLIB_ST7920_128X64_1X u8g(23,17,16);

Compile and Upload

Quote
frits1956
Problem not yet solved?
Is this problem with marlin software, version RC7?

Try this:

Find U8GLIB_ST7920_128X64_RRD u8g(0);
you should find it in tab ultralcd_impl_DOGM.h
make backup (type // in front) and type on new line
U8GLIB_ST7920_128X64_1X u8g(23,17,16);

Compile and Upload

Worked perfectly, thank you so much