MySQL Bugs: #70119: Mouse cursor flashes in SQL Editor

Bug #70119	Mouse cursor flashes in SQL Editor
Submitted:	22 Aug 2013 12:08	Modified:	7 Nov 2013 1:45
Reporter:	George Chrysoloras	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Workbench: SQL Editor	Severity:	S5 (Performance)
Version:	6.0.6.11184	OS:	Windows (8 x64)
Assigned to:		CPU Architecture:	Any

Description:
The mouse pointer inside a SQL Editor window rapidly changing from pointer to cursor while moving the mouse thus creating a repeatedly flashing event.

This problem has been reported in a previous bug report for other versions of MS Windows and MySQL Workbench but it's closed: http://bugs.mysql.com/bug.php?id=61752

If anyone has at least found a workaround for this, some settings on Windows or so, please respond (disabling mouse shadow does not work for me).

How to repeat:
Open the SQL Editor window.
Move cursor over the window.
Mouse pointer flashes.

Thank you for the bug report. I could repeat only on Windows 8.

I am on Windows 7 64 bit, and using Workbench 6. Logitech mouse and driver

My mouse is problematic. When workbench is open cutting and pasting is difficult if not impossible. This affects other app like excel. When workbench is closed the mouse works as it should.

Thge cursor blinks and is not responsive for several seconds at the time.

This started when I loaded the beta of workbench then uninstalled it to go back to 5.47.

I have this problem on both my Desktop and Ultrabook.  

They are both running Windows 7 64 bit.  The Desktop runs Professional and the Ultrabook runs Home Premium.  The only hardware similarities between the two systems are Intel processors. A 2nd gen i3 and the others a 3rd gen i7.  

Besides this bug being extremely annoying, it causes significant battery drain for the ultrabook.  Hovering the mouse over the SQL editor raises the MySQLWorkbench.exe thread to 3-5% processor load.  Moving the mouse across the SQL editor loads the processor to 20-25% -An entire cpu core.   

The ultrabook cpu is the i3-2377 @ 1.5ghz.  

For the desktop.  Moving the cursor across the editor raises the load from MySQLWorkbench.exe to 12%. Which is also an entire core for the i7-3770k @ 3.7Ghz.   

I'm using Workbench 6.0.7.11215.

Reporting it's also a bug on v6.0.7.11215 Windows 7 32-bit version.

Fixed as of MySQL Workbench 6.0.8, and here's the changelog entry:

On Microsoft Windows, the mouse pointer inside a SQL Editor tab would
rapidly change from pointer to cursor when the mouse was moved, thus
creating a repeatedly flashing event.

Thank you for the bug report.