Thanks a lot for your help. I wasn't really expecting anyone to care about such a specific problem.
I've tested the buttons in the latest kernel, and the issue remains unresolved. All of the buttons have the same scan codes as before and perform the same functions.
One possible sign of improvement is something I tried in Ubuntu Tweak. Since Key 1 has the same scan code as "super" + "x", I tried using this as a shortcut. In the old kernel, it didn't work, but now the same version of Ubuntu Tweak allows me to assign a command to "super" + "x".
Unfortunately, the other keys have key codes that correspond with a single keys, as opposed to Key 1 which has a scan code of two other keys combined. This means Key 2 and Key 3 are still unusable with Ubuntu Tweak.
Thanks a lot for your help. I wasn't really expecting anyone to care about such a specific problem.
I've tested the buttons in the latest kernel, and the issue remains unresolved. All of the buttons have the same scan codes as before and perform the same functions.
One possible sign of improvement is something I tried in Ubuntu Tweak. Since Key 1 has the same scan code as "super" + "x", I tried using this as a shortcut. In the old kernel, it didn't work, but now the same version of Ubuntu Tweak allows me to assign a command to "super" + "x".
Unfortunately, the other keys have key codes that correspond with a single keys, as opposed to Key 1 which has a scan code of two other keys combined. This means Key 2 and Key 3 are still unusable with Ubuntu Tweak.
Thanks a ton for your help.