So just got my new X1 carbon 6th generation and have to say I am confused by the Ctrl and Fn key functions... I know they can be swapped and activated in BIOS and have installed the OS software and updated it all through the Lenovo app but the way mine works now is that the Fn key only works for the keyboard backlight, Fn lock, and snipping tool and the Ctrl key activates all the F keys... if I do the Fn/Ctrl swap then it is the opposite of this with the Ctrl key activating the keyboard backlight, snipping tool, etc and the Fn key working with the F keys. If I use Fn lock, it does nothing when I push the F keys (just activates whatever F key function the OS uses like help dialog with F1).
This seems very unusual to me - I would think that the Fn key should activate all the features likel it has on every other ThinkPad I have owned - is this how it is supposed to work or is there something wrong?
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Most likely you can thank blame Micro$haft's W10 for that.
Maybe run Systemupdate if that still exists?
Run a recent Linux-Live from a USB-stick and see what happens there.
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The Fn key placement was decided by IBM, before the other PC makers even existed
The ThinkPad laptops follow this tradition!
"...ThinkPad computers with the Fn key as the lowest-left, making Control the second-from-left on the bottom row. This arrangement is currently unique to ThinkPads amongst all laptops shipped with Windows, but it is one that has been in place since the modern ThinkPad product line was introduced by IBM in 1992. IBM designers rationalised that since the Fn key was used to control features that in some cases had no other physical or software controls (for example, the ThinkLight keyboard-illumination lamp, which is switched only by the Fn+PgUp keys), the Fn key should have the more prominent position on the keyboard. Notably, IBM did not include Windows keys on any of their keyboards until 2006, which meant that though the left Control key was displaced by the Fn key, neither it nor the left Alt key needed to be made smaller. The inclusion of Windows keys on ThinkPad models from mid-2006 onwards was achieved mainly by shrinking the left Alt key, which means that ThinkPad keyboards now generally have larger left Control keys than those of many other manufacturers, and are unique in preserving on laptops the Control, Windows, and Alt key arrangement used on most desktop keyboards. Many laptops place the Fn key at a less convenient position (and with a smaller size) within the top row of functions keys F1 to F12 and other "multimedia" or manufacturer-specific device/power control key."
Current Thinkpads: X1C4 | X1C3 | X250 | X230 | T410
Retired Thinkpads: T42 | 560 (circa 1996)
~~IBM Thinkpad era computer bag !
I know you like to blame Micro$haft and Win10 for everything, but most of the time you are at least partially wrong. Here you are most likely 100% wrong, because the Fn key handling is done on purely a HW level via the embedded controller. It does not generate a scancode, and is not visible to the OS.
What the OP is more likely experiencing here is a BIOS bug. There is a similar bug around the Fn key lock in the TP25 BIOS, which I reported on at one point.
Thanks to them, my brain is wired to expect Fn to be the leftmost key on laptop keyboard, while at the same time expecting Ctrl to be the left most on desktop keyboard.
I own a rare specimen of a non-IBM laptop with the Fn key is on the far left - the Compaq Evo N610c.
T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad, A21m 2628-GXU
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