# The first screen of Marlin 2.0 is showing some horizontal lines, appearing to be broken

We are using the branch bugfix 2.0 and the first screen of Marlin is showing some horizontal lines, appearing to be broken.

After 3 seconds, the boot screen appears and everything works normally.

We have tried to disable the custom bootscreen:

//#define SHOW_CUSTOM_BOOTSCREEN


We have tried to disable the Marlin bootscreen:

//#define SHOW_BOOTSCREEN


We have checked the power supply.

We have wrapped the "flat cable" in aluminum foil and ground everything correctly.

We have deleted the "firmware.bin" and it did not solve the problem.

The first time the firmware is loading the "firmware.bin", those horizontal lines do not appear, but when it is loading the "FIRMWARE.CUR" it does appear.

What exactly is happening? How do I fix those horizontal lines on boot?

• So I take it your questions are probably, What exactly is happening? & How do I go about resolving the problem? The reason I say, is, you really didn't specify a question in your ... er ... question. Could you please clarify what you're trying to figure out so we don't have to assume? – Pᴀᴜʟsᴛᴇʀ2 Nov 14 '19 at 2:18
• Seems to be normal for now. Both my SKR 1.3s running Marlin 2.0 do this. – towe Nov 14 '19 at 8:41
• Any other idea on how to solve this? It seems to be a problem in the bootloader routine. – David Souza Nov 18 '19 at 23:42