Marlin TFT Screen Glitch

[nichols89ben]

Description

Started getting a screen glitch at random moment, but happens every print at some point. Ive searched forums but havent found a solution that works. I also tried the section that was in troubleshooting

#define ST7920_DELAY_1 DELAY_NS(200) // After CLK LOW
#define ST7920_DELAY_2 DELAY_NS(400) // After DAT
#define ST7920_DELAY_3 DELAY_NS(200) // After CLK HIGH

Steps to reproduce

Hardware Variant

TFT70

TFT Firmware Version & Main Board Firmware details

bugfix-2.1.x 2024-03-25
CONFIG_VERSION 20230929

Additional Information

Archive 2.zip

[radek8]

A similar problem has been reported here in the past.
My display did it a few times too. But this problem has not been reported for a long time. Maybe also because people are buying touchscreens so they don't have to use Marlin mode :-)
Are you sure you are using the latest FW for TFT?
#548
#2274

[radek8]

The solution could be shielding the cabling leading to the display.
see this post:
bigtreetech/BTT-TFT35-E3-V3.0#80 (comment)

[radek8]

Have you found a solution to your problem?

[nichols89ben]

Have you found a solution to your problem?

Sorry, I added some of the adjustments suggested in the Marlin firmware and I bought some shielding. It hasn't happened again yet so one of those fixed it. Now I just need to figure out how to get idex options to show in the BTT touchscreen ui!

[github-actions]

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