[Libreoffice-bugs] [Bug 137003] New: Navigating spreadsheet rows with left and right keyboard arrows is no longer progressive and easy to follow on screen with some Dell computers.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=137003

            Bug ID: 137003
           Summary: Navigating spreadsheet rows with left and right
                    keyboard arrows is no longer progressive and easy to
                    follow on screen with some Dell computers.
           Product: LibreOffice
           Version: 7.0.0.3 release
          Hardware: Other
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: LibreOffice
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: simon at simonhnoble.plus.com

Description:
I am using Windows 10 Pro build 19041.450 on three computers: a slow Dell GX620
Pentium4 single core 32-bit and a pair of 64-bit Dual Core Dells: a 755 and a
quicker 760.

On upgrading from LibreOffice version 6.4.3.2 to LibreOffice 7.0.0.3 and
recently to version 7.0.1.2 I found that navigating my spreadsheets with the
left and right keyboard arrows had lost the smoothness and predictability.  It
is a poorer user experience with the highlighted cells at first hesitant to
respond and then leaping away across the screen.  This affects the single core
Dell GX620 which is a deadly slow PC as well as the Dell 755 which is a quicker
Dual Core PC.  The handling issue isn't present on the Dell 760 which is a
faster PC and it isn't affecting all spreadsheets, seemingly to cause issues
with those containing lots of entries.

I have reverted to the LibreOffice version 6.4.3.2 which is a lovely handling
version because following the progress of the highlighted cell across the
screen is controllable with that older LibreOffice version...  

This looks like a programming change at the upgrade to version 7.0  that is
fighting hardware (CPU) I am guessing that it may be to do with rendering.

Other than that it's OK. I have called it a Normal and not a Minor issue
because it affects user expectations of quality.

Good luck! 

Steps to Reproduce:
1. Use a PC that is estimated to be a bit dated: NOT a Quad Core then.
2. Select a big spreadsheet.
3. Navigate a row with keyboard L and R arrows.  Compare with a faster PC.

Actual Results:
With LO 7.0.0.3 and recently LO 7.0.1.2, it has become difficult to follow the
highlighted cells across the screen to an intended spreadsheet column.  There
is an initial hesitation and then a rush of speed and a need to let go of the
key or mouse.  There is lack of control-ability: it isn't predictable or
progressive any more.
The behaviour is present on more than one machine and isn't a user profile
issue.

Expected Results:
With LibreOffice 6.4.3.2 (my earlier version) it is easy to speed the
highlighted cell across the screen and predictably drop the highlighted cell at
the column intended.




Reproducible: Always


User Profile Reset: No



Additional Info:
[Information automatically included from LibreOffice]
Locale: en-GB
Module: StartModule
[Information guessed from browser]
OS: Windows (10 build 10.0.19041.450)
OS is 64bit and 32bit

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