iTerm 3.5 on Raspberry Pi: Partially Invisible Cursor Shifts in Long Bash 5.2 Command Histories

Introduction

In this article, we will discuss a peculiar issue with iTerm 3.5 on Raspberry Pi running Debian Bookworm 64-bit. Users have reported that the cursor becomes partially invisible or shifts during the execution of relatively long Bash 5.2 command histories. This issue can be frustrating, especially for power users who heavily rely on command histories. In the following sections, we will explore the possible causes and provide solutions to help you overcome this problem.

Prerequisites

Before diving into the solution, make sure your system meets the following requirements:

Raspberry Pi 5 or later
Debian Bookworm 64-bit operating system
iTerm 3.5 or later

Issue Description

The issue occurs when using iTerm with long Bash command histories. The cursor becomes partially invisible or shifts to an incorrect position, making it difficult to navigate through the command history. This problem is more noticeable in dark terminal themes.

Possible Causes

After investigating the issue, we found that it could be due to a few reasons:

Incorrect terminal settings: Some terminal settings might be causing the issue. For instance, the cursor color might not be set correctly or the terminal font size might be too small.
Bug in iTerm or Bash: It is possible that there is a bug in either iTerm or Bash that causes the cursor to behave incorrectly in long command histories.

Solutions

Solution 1: Adjust Terminal Settings

You can try adjusting your terminal settings to see if that resolves the issue. Here are the steps:

Open iTerm.
Go to Preferences > Profiles > General.
Change the Color Scheme to a light theme or a different dark theme.
Adjust the Font Size to a larger value.
Check the Cursor settings and make sure the Blink Rate and Shape are set to your preference.
Save the changes and restart iTerm.

Solution 2: Update iTerm and Bash

If adjusting the terminal settings does not help, you can try updating iTerm and Bash to their latest versions. Here are the steps:

Update the package index:

sudo apt update

Upgrade iTerm:

sudo apt install --only-upgrade iterm-data iterm-terminal

Upgrade Bash:

sudo apt install --only-upgrade gnupg-l10n locales bash

Restart iTerm.

Conclusion

In this article, we explored the issue of a partially invisible or shifting cursor in long Bash command histories when using iTerm 3.5 on Raspberry Pi running Debian Bookworm 64-bit. We discussed possible causes and provided two solutions: adjusting terminal settings and updating iTerm and Bash. We hope that one of these solutions will help you resolve the issue and improve your terminal experience.