Werk #18561: Vertical graph axes with auto-ranges: Avoid always including zero in case of lines only

Component

User interface

Title

Vertical graph axes with auto-ranges: Avoid always including zero in case of lines only

Date

Aug 6, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p10	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p36	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Previously, the vertical range of graphs with lines only always contained zero if it was set automatically. This made graphs with data with a small range far off from zero hard to read, since variations were hard to see.

This effectively reverts werk #16987.

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