Opened 9 years ago

Closed 8 years ago

#4897 closed defect (fixed)

menu pops up in wrong place sometimes

Reported by: quozl Owned by:
Priority: Normal Milestone: Unspecified
Component: Sugar Version: Unspecified
Severity: Minor Keywords: patch
Cc: Distribution/OS: OLPC
Bug Status: New

Description (last modified by SAMdroid)

sometimes a palette will appear in the wrong place on screen. this seems to happen especially when the system is under load.

however, it can be reproduced carefully on a system with no load by forging mouse actions with strict timing.

sugar should behave correctly even in this scenario, and fixing it to work correctly will also fix the problems when under load.

restating in standard bug report format:

problem: palette pops up in wrong place sometimes

reproducer: right click on the centre icon, then between 10 and 40 milliseconds later move the mouse a long way from the icon.

expected result: palette should be drawn where the click was captured.

observed result: palette is drawn in the new mouse location.

occurs reliably with times of up to 100 milliseconds, then becomes less reliable.

automated method of reproducing;

prepare the system:

sudo yum install xdotool
service sshd start
chkconfig sshd on
passwd #   or other method to enable remote SSH into system

position sugar at the home view with no palette popped up.
reproduce the problem:

ssh host 'DISPLAY=:0 xdotool mousemove 600 450 click 3 sleep 0.04 mousemove 30 30'

observe the location of the palette.

Attachments (1)

Screenshot of _Home_.png (71.8 KB) - added by quozl 9 years ago.
screenshot showing menu in wrong place

Download all attachments as: .zip

Change History (7)

Changed 9 years ago by quozl

screenshot showing menu in wrong place

comment:1 Changed 9 years ago by SAMdroid

  • Description modified (diff)


Sugar gets the cursor position at

To fix this bug, we need to move this to closer to the click

comment:2 Changed 9 years ago by quozl

agreed. the button down event for the click has coordinates of mouse captured by X server at the time of the click.

comment:3 Changed 9 years ago by SAMdroid

Another way to reproduce is using a touchscreen and a mouse.

  1. Right click icon
  2. Press touch screen very quickly after

comment:6 Changed 8 years ago by quozl

  • Resolution set to fixed
  • Status changed from new to closed

Was merged as 739dacbd01c84d4069db4d9b876cccf4c49a9cc2, closing, seems fixed in 0.107.2

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