I confirmed this bug on my laptop, using the dvorak variant:
Section "InputDevice" Identifier "Generic Keyboard" Driver "kbd" Option "XkbRules" "xorg" Option "XkbModel" "pc105" Option "XkbLayout" "us" Option "XkbVariant" "dvorak" Option "XkbOptions" "lv3:ralt_switch" EndSection
However, this time, I was able to fix it with:
setxkbmap -model evdev -layout us -variant dvorak
I confirmed this bug on my laptop, using the dvorak variant:
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
Option "XkbVariant" "dvorak"
Option "XkbOptions" "lv3:ralt_switch"
EndSection
However, this time, I was able to fix it with:
setxkbmap -model evdev -layout us -variant dvorak