[Expired for xen-3.0 (Ubuntu) because there has been no activity for 60
days.]
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[edgy] keyboard broken in X11 on xen dom0
https://bugs.launchpad.net/bugs/67519
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Bugs, which is the bug contact for Ubuntu.
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ubuntu-bugs
Please try the feisty version.
Thanks
chuck
** Changed in: xen-3.0 (Ubuntu)
Status: Unconfirmed = Needs Info
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[edgy] keyboard broken in X11 on xen dom0
https://bugs.launchpad.net/bugs/67519
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug
I think I have found the cause: openntpd. The keyboard begins stuttering
in the exact moment that ntpd is stepping time because of a great
offset. Keyboard works if I disable ntpd and stops working if I start it
then. I have tested this on the second computer and will test it now on
the first one.
I didn't mention it before, but to reproduce this bug it might be
necessary to use a PS/2 keyboard, this is what I'm using.
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[edgy] keyboard broken in X11 on xen dom0
https://launchpad.net/bugs/67519
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I was a bit too fast, turns out, that openntpd's adjusting local clock
by message means adjtime(). I've written a small test program to
reproduce this bug.
sudo ./test -4
triggers the bug and
sudo ./test 0
fixes it after doing the first.
The bug can only be triggered with big (i.e. more than
The same setup as above is working in another computer. On this one (the
working one), Xen and the Dom0 kernel agree about the CPU clock speed
(it's an old 1.3 GHz Athlon, clocked down to 1.0 GHz to reduce heat) and
the reported CPU clock speed equals the actual clock setting from the
BIOS (i.e.
Seems like I was a bit too fast. It is not working on the other
computer, it just takes a bit longer but then not only the keyboard
behaves odd, but shortly after the keyboard begins to make trouble, X
(or the keyboard, I currently have no mouse) locks up completely.
Logging in via ssh still
On the console the keyboard works fine. So it's probably a problem in
the Xserver that is exposed by Xen.
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[edgy] keyboard broken in X11 on xen dom0
https://launchpad.net/bugs/67519
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** Attachment added: lspci gathered under xen
http://librarian.launchpad.net/4922320/lspci-xen.txt
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[edgy] keyboard broken in X11 on xen dom0
https://launchpad.net/bugs/67519
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Sound is also stuttering under Xen, so maybe it really is a timing
problem caused by the disagreement over CPU clock speed.
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[edgy] keyboard broken in X11 on xen dom0
https://launchpad.net/bugs/67519
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** Attachment added: xm dmesg
http://librarian.launchpad.net/4922321/xm-dmesg.txt
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[edgy] keyboard broken in X11 on xen dom0
https://launchpad.net/bugs/67519
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** Attachment added: dmesg gathered under xen
http://librarian.launchpad.net/4922322/dmesg.txt
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[edgy] keyboard broken in X11 on xen dom0
https://launchpad.net/bugs/67519
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