On 5/1/2010 9:49 AM, Ken Brown wrote:
I'm often seeing a very slow response to keypresses under
xorg-server-1.8.0-1. The problem is intermittent, but it always happens
within a few minutes after starting the server (via the start menu
shortcut or a slight variant). Here are some examples:
1. Switching windows with Alt-Tab sometimes takes up to 15 seconds or
doesn't work at all (i.e., I get tired of waiting to see if the focus is
ever going to switch).
2. When using 'less' to view a file in an xterm window, there is
sometimes a delayed response to 'space' or 'q'.
3. When viewing a directory in emacs-X11, pressing 'v' to start viewing
a file can sometimes result in a long delay, pressing 'space' to scroll
in view mode can be slow, and pressing 'q' to exit view mode can be slow.
In some of these cases, I sometimes don't get a response to the first
keypress until I press a second key. For example, if I'm viewing a file
with 'less', I may press 'q' and get no response. Then pressing 'q' a
second time exits 'less' and also produces an echoed 'q' in xterm.
Similarly, I'll sometimes press a key, see no echo, and then get two
characters echoed at once after pressing a second key.
Reverting to xorg-server-1.7.6-2 solves the problem.
I'm attaching cygcheck output and an XWin log.
I found a test case that I can reproduce reliably on my system.
1. With no .Xdefaults or .startxwinrc, start the X server via the start
menu shortcut.
2. Start xfig (with 'xfig &' in the xterm window).
3. Repeatedly press Alt-Tab to switch between the xterm and xfig
windows. At some point the focus fails to switch. When this happens,
press Alt and the focus switches.
Ken
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