Two-key rollover causing duplicate keystrokes

Please report issues with the DM41X Beta Firmware in this sub-forum
Dave Britten
Posts: 113
Joined: Wed Jun 14, 2017 9:27 pm

Re: Two-key rollover causing duplicate keystrokes

Post by Dave Britten »

Mark Hardman wrote:
Wed Oct 14, 2020 2:38 am
I reported this bug during the DM41X beta. I believe it was the very first bug reported (30-Jan-2020):

Keyboard Rollover Bug

As I pointed out in that bug report, it does matter because the DM41X behavior is different from the HP-41CX.
Looks like you were seeing exactly the same results that I am on the release version.
User avatar
pcscote
Posts: 136
Joined: Tue May 02, 2017 12:12 pm
Location: Near Montréal, Québec, Canada

Re: Two-key rollover causing duplicate keystrokes

Post by pcscote »

These are my test results:

Code: Select all

Test..: press-and-hold 1, then press-and-hold 2, then release 1, then release 2
Result: 12 on 41CL, 12 on 41CV-FN, 12 on 41CX-HN, 122 on DM41X

Code: Select all

Test..: press-and-hold 2, then press-and-hold 1, then release 2, then release 1
Result: 21 on 41CL, 21 on 41CV-FN, 21 on 41CX-HN, 221 on DM41X

Code: Select all

Test..: press-and-hold 1, then press-and-hold 4, then release 1, then release 4
Result: 14 on 41CL, 14 on 41CV-FN, 14 on 41CX-HN, 144 on DM41X

Code: Select all

Test..: press-and-hold 4, then press-and-hold 1, then release 4, then release 1
Result: 41 on 41CL, 41 on 41CV-FN, 41 on 41CX-HN, 441 on DM41X 

Code: Select all

Test..: press-and-hold 1, then press-and-hold 2, then release 2, then release 1
Result:  1 on 41CL,  1 on 41CV-FN,  1 on 41CX-HN, 121 on DM41X  

Code: Select all

Test..: press-and-hold 2, then press-and-hold 1, then release 1, then release 2
Result:  2 on 41CL,  2 on 41CV-FN,  2 on 41CX-HN, 222 on DM41X 
Sylvain
[DM1x/DM1xL/DM41/DM41L/DM41X/DM42]
Post Reply