fb_try_mode(9)

💅 fb_try_mode — test a video mode

okay so this is a page from the Kernel API Manual, and it's about fb_try_mode — the little function that's basically the vibe check for a video mode. bestie, it does not commit to anything, it just tries. 💖

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✨ NAME ✨

fb_try_mode — test a video mode

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🌸 SYNOPSIS 🌸

int fb_try_mode (struct fb_var_screeninfo *var , struct fb_info *info ,
const struct fb_videomode *mode , unsigned int bpp );

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🎀 ARGUMENTS 🎀

• var — the frame buffer user defined part of the display, fr fr
• info — the frame buffer info structure
• mode — the frame buffer video mode structure, the one on trial 👀
• bpp — color depth in bits per pixel

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🦋 DESCRIPTION 🦋

So what it does is it tries a video mode out — literally just tests whether that mode is valid for the device info. That's the whole assignment. No cap.

And the return? 1 on success. slay. ✨

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💜 SEE ALSO 💜

Bestie, there's a whole friend group here, all in the kernel file ./drivers/video/fbdev/core/modedb.c:

• fb_find_mode(9)
• fb_var_to_videomode(9)
• fb_videomode_to_var(9)
• fb_mode_is_equal(9)
• fb_find_best_mode(9)
• fb_find_nearest_mode(9)
• fb_match_mode(9)
• fb_add_videomode(9)
• fb_delete_videomode(9)
• fb_destroy_modelist(9)
• fb_videomode_to_modelist(9)

they're all icons, go say hi 🫶

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and that's the whole page, mwah 💋 this one came from ./drivers/video/fbdev/core, dated October 2026, and it's fb_try_mode(9) signing off — periodt 🎀🌈⭐