apm_console_blank(9)

💅 apm_console_blank(9) — the Kernel API Manual, bestie edition 🎀

okay so this is a page from the Kernel API Manual, and it's literally about telling your screen to go night-night ✨ (apm_console_blank(9), if you're keeping track of the section number, which — icon behaviour — we are).

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✨ NAME ✨

apm_console_blank — blank the display 🫶

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🌸 SYNOPSIS 🌸

int apm_console_blank (int blank );

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🦋 ARGUMENTS 🦋

• blank — on/off, bestie. That's the whole vibe check 💅

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💖 DESCRIPTION 💖

So the way this works: it attempts to blank the console 😭 — and no, it doesn't just go feral and do it all at once. First it lowkey tries blanking just video device zero 💫, and if that fails (sigh — some BIOSes literally don't support it, not naming names 🙈) then it goes full main character and blanks all video devices 🔥.

Typically the BIOS handles laptop backlight and monitor powerdown for us — so like, it's giving teamwork, it's giving delegation, we love that for us 👑.

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🌈 SEE ALSO 🌈

Kernel file ./arch/x86/kernel/apm_32.c — the source of truth, the mothership 🧚

And the whole friend group, fr fr:

• apm_error(9)
• __apm_bios_call(9)
• apm_bios_call(9)
• __apm_bios_call_simple(9)
• apm_bios_call_simple(9)
• apm_driver_version(9)
• apm_get_event(9)
• set_power_state(9)
• set_system_power_state(9)
• apm_do_idle(9)
• apm_do_busy(9)
• apm_cpu_idle(9)
• apm_power_off(9)
• apm_enable_power_management(9)
• apm_get_power_status(9)
• apm_engage_power_management(9)

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okay that's the whole page, and yes she ate 💅 — this one lives under ./arch/x86/kernel, dated October 2026, and we're all obsessed. bye bestie, go blank that display responsibly 🔥⭐💜