A part of the view is shifted 1px to the left when unselected leaving parts of letters missing. See for example the word "body" in the last line of the indicated paragraph in the screenshot. The vertical line is missing from the "d" making it look like a "c". Follow this line upward and you see there is a pixel missing from each text line in the indicated area. REPEAT BY: 1. go to http://www.livejournal.com/users/jwz/239101.html 2. select/unselect text by clicking on the name "Lee Chin" and dragging down with the mouse button pressed - drag past the image and then up again, unselecting the text. 3. if it doesn't occur the first time, try resizing the window slightly or try it when the vertical scrollbar is present/not present. After a few tries it is 100% reproducible. ACTUAL RESULT: Missing pixels, see screenshot. EXPECTED RESULT: No missing pixels. PLATFORM AND BUILDS TESTED: Bug occurs in Mozilla nightly trunk build 2003-08-04-05 on Linux Bug does NOT occur in Mozilla 1.3.1 on Linux Bug does NOT occur in Mozilla 1.0.2 on Linux ADDITIONAL INFORMATION: Covering/uncovering the window repaints all pixels correctly. Just hovering the link ("Power from blood...") also repairs the damaged area.
It appears the bug only occurs if the mouse passes over the link on the way back up. Doing the selection/unselection by dragging the mouse outside the green box does not trigger the bug.
Created attachment 129332 [details] Testcase (standalone) Some observations: 1. Bug only occurs if the whole thing is wrapped in <div align="center"> 2. The x position of the "vertical line" where the damage occurs coincides with the right edge of the first cell in the upper table (content "XXX") - add a few characters and the damage moves right. 3. Bug does not occur if I remove the <p><p> after the upper table
Attachment #129330 - Attachment is obsolete: true
Making the point 2. above a bit more precise: The x position of damage coincides the right edge of the (upper table) cell that the mouse is moved into on the way up.
Summary: A part of the view is shifted 1px to the left when unselected → A part of the view is shifted 1px to the left when unselecting text
WFM on WinXP Moz 2003080304
OK, in that case it's probably limited to Gtk
Assignee: kmcclusk → blizzard
Component: GFX → GFX: Gtk
I suspect this is a rounding problem somewhere combined with the fact that we union invalidate rects before painting (see patch in bug 215303).
*** Bug 227932 has been marked as a duplicate of this bug. ***
Note that the bug only occurs when the pref "Display resolution" is set to "System setting" and the system dpi is for example: 91 x 92 (what I have) 90 x 89 (reporter in bug 227932) "116dpi" (dbaron) Changing the pref to "96 dpi" makes the problem go away.
Can anyone still reproduce this bug in a recent trunk build? http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/ I haven't seen it in a long time, but my screen is now 101x101 dpi so that might have something to do with it. See comment 11.
Whiteboard: CLOSEME 07/01
Status: NEW → RESOLVED
Last Resolved: 11 years ago
Resolution: --- → WORKSFORME
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