[konsole] [Bug 371688] New: Underlines appear too low, do not show up consistently, and sometimes persist after clearing the screen
bugzilla_noreply at kde.org
Wed Oct 26 00:09:44 UTC 2016
Bug ID: 371688
Summary: Underlines appear too low, do not show up
consistently, and sometimes persist after clearing the
Assignee: konsole-devel at kde.org
Reporter: flarn2006 at gmail.com
Target Milestone: ---
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:49.0)
Build Identifier: 15.12.3
When something tries to display underlined text, the underline doesn't always
appear, and when it does, it appears too low, on the top of the next line
rather than the bottom of the current one. Sometimes, underlines are visible
even after clearing the screen, resulting in what looks like random horizontal
lines in the blank space.
Switching windows often affects whether or not underlines are displayed.
Steps to Reproduce:
1. Type 'cat' at the shell prompt in Konsole and press Enter.
2. Press Escape, and then type "[4m" without quotes.
3. Type some lines of text and pay attention to when underlines appear.
4. Press Ctrl+C, and clear the screen.
5. Try opening a man page with underlined text, such as "man chmod". Press 'q'
to close the man page. Try this a few times, sometimes scrolling or changing
windows while the page is displayed.
When typing text in "cat", underlines don't appear until the next line is
displayed. Underlines are commonly also seen disappearing upon changing lines.
Changing windows causes currently-invisible underlines to be displayed.
When clearing the screen (such as after closing a man page) underlines
sometimes remain visible, despite the underlined text no longer being present.
In all cases, underlines appear too low. This is probably the root cause of the
issue, as it is outside of the bounding box for the current line.
After typing ^[[4m and pressing Enter, text should appear underlined as it is
typed. Underlines should always appear under text that is supposed to be
underlined, and they should always go away immediately upon clearing the
screen. Underlines should appear within the bounds of the line containing the
underlined text, even if there is no room to do this without having it touch
the text—it is okay if the underline touches the text.
The font I am using is 12-point "PxPlus IBM VGA8" from this site:
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