[BUG] Bottom half of terminal blacked out when docked to right side (GNOME Terminal)

Description

The bottom half of the Claude Code terminal window is completely blacked out when the window is docked to the right side of the screen. The terminal window is at full length, but only the top portion renders content - the bottom half remains black/non-rendering.

Environment

• OS: Ubuntu 24.04 (GNOME)
• Terminal: GNOME Terminal (xterm-256color)
• Window State: Docked to right side
• Claude Code Version: Latest (as of 2025-10-03)

Steps to Reproduce

1. Open Claude Code in GNOME Terminal
2. Dock the terminal window to the right side of the screen
3. Observe that only the top portion of the terminal renders content
4. Bottom half is completely blacked out

Expected Behavior

The entire terminal window should render content from top to bottom.

Actual Behavior

Only the top ~50% of the terminal window renders. The bottom half is completely black/non-rendering, wasting significant screen space.

Screenshot

!Screenshot from 2025-10-03 09-26-25

Additional Context

• Terminal window is at full length (not resized smaller)
• Issue appears specific to docked window state
• stty size reports correct dimensions
• The blacked-out area does not respond to input or scrolling

Workarounds Attempted

• Resizing terminal window
• Undocking/redocking window
• None successful so far