fenrus75/powertop v2.16-rc2

Second release candidate for v2.16

on GitHub

v2.16-rc2

User-visible enhancements and changes

Display / UI

• Show "Preparing to take measurements" message during the initial
  one-second measurement so the screen is no longer blank at startup
• Vertical scrollbar added to tab content panes
• Scroll-down capped at content extent to prevent over-scrolling
• Terminal resize (KEY_RESIZE / SIGWINCH) now handled correctly while
  PowerTOP is running
• Notification system redesigned to use the status bar instead of
  overlaying content
• Tab bar and bottom line now correctly fill the full terminal width

Reports

• HTML and CSV output: fixed escaping and i18n issues
• Markdown report output format added (--output=file.md)

Correctness / stability fixes

• Fixed three memory leaks found by Valgrind (power meters, tuning
  window, wakeup tab window)
• Fixed double-free in devfreq cleanup
• Fixed sysfs residency overflow in Intel GPU reporting
• Fixed RAPL division-by-zero and improved error handling
• Fixed Bluetooth byte-counter logic and removed deprecated tooling
• Added near-zero division guards for AHCI, ALSA, and RAPL power
  calculations
• Fixed --batch mode numeric safety and i18n issues
• Fixed halfdelay timeout clamping to valid ncurses range

Translations

• 17 previously missing source files added to translation coverage
• All .po files regenerated; format-specifier changes (%s → {})
  applied mechanically across all 11 languages

New command-line options

• --once: take a single measurement and exit
• --auto-tune-dump: run auto-tune and dump results without
  interactive display

Internal changes (summary)

Extensive C++ modernisation: std::string / std::format replacing
char[] buffers, std::unique_ptr for owning containers, const-
correctness sweep across the entire codebase, and range-for loop
modernisation. Build system migrated to Meson; C++20 standard adopted.