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[Qemu-devel] [Bug 1162227] Re: Mouse works badly when connecting to host
From: |
Askar Safin |
Subject: |
[Qemu-devel] [Bug 1162227] Re: Mouse works badly when connecting to host via vnc |
Date: |
Sun, 31 Mar 2013 13:05:41 -0000 |
I tried to reproduce this bug using lastest stable version (1.4.0) and master
(5e3a0f418c4d57399778cee0b55aebfb663b6425).
This versions seem to add "-usbdevice tablet" by default (and this is very
good). But I think that if guest OS doesn't support tablet device then bug will
still appear. So, I added option "-usbdevice mouse" to simulate this situation.
And bug really appeared (i. e. mouse disappeared). So, please fix it or
document it.
Configurations:
* A: Ubuntu precise 64-bit, x11vnc 0.9.12, Qemu 1.4.0, C: Debian squeeze
64-bit, xvnc4viewer 4.1.1, B: Ubuntu precise 64-bit, command line:
/opt/qemu-1.4.0/bin/qemu-system-x86_64 -enable-kvm -m 256 -daemonize -snapshot
-drive cache=none,file=/dev/sda -net none -usbdevice mouse
* A: Ubuntu precise 64-bit, x11vnc 0.9.12, Qemu
5e3a0f418c4d57399778cee0b55aebfb663b6425, C: Debian squeeze 64-bit, xvnc4viewer
4.1.1, B: Ubuntu precise 64-bit, command line:
/opt/qemu-5e3a0f418c4d57399778cee0b55aebfb663b6425/bin/qemu-system-x86_64
-enable-kvm -m 256 -daemonize -snapshot -drive cache=none,file=/dev/sda -net
none -usbdevice mouse
Same for -vnc option (i. e. pointers was not synced when using
-usbdevice mouse)
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https://bugs.launchpad.net/bugs/1162227
Title:
Mouse works badly when connecting to host via vnc
Status in QEMU:
New
Bug description:
Let's assume we have some physical host A. This host runs qemu guest B
locally without any options like "-vnc" etc.
Then I connect from some physical host C to the host A via VNC or Teamviewer
( www.teamviewer.com ). And then I try to remote control (via this vnc
connection) qemu guest. But I cannot do this because my mouse disappears when I
click at my qemu guest. I see little black square only. (This square is vnc
feature, it automatically appears when mouse disappears.) When I click to some
objects inside guest I will instead click to another random object inside guest.
I saw this bug in the following configurations:
* A: Debian squeeze 64-bit, Teamviewer 8, Qemu 1.1.2, C: Ubuntu precise
64-bit, Teamviewer 8, B: Windows 7 32-bit, command line:
qemu-system-x86_64 --enable-kvm -m 2048 -daemonize -localtime -drive
cache=none,file=/root/vm/w7-sp1-i386-en.cow
* A: Debian squeeze 64-bit, Teamviewer 8, Qemu 1.1.2, C: Ubuntu precise
64-bit, Teamviewer 8, B: Debian squeeze 64-bit, command line:
qemu-system-x86_64 -enable-kvm -m 256 -daemonize -snapshot -net none -drive
cache=none,file=/dev/sda
* A: Debian squeeze 64-bit, x11vnc 0.9.10, Qemu 1.1.2, C: Ubuntu precise
64-bit, xvnc4viewer 4.1.1, B: Windows 7 32-bit, command line:
qemu-system-x86_64 --enable-kvm -m 2048 -daemonize -localtime -drive
cache=none,file=/root/vm/w7-sp1-i386-en.cow
Also, if I add "-usbdevice tablet" option, this bug will disappear.
So, probably, this bug is not a bug. But in this case you should
document it. I. e. you should add to docs something like "add
-usbdevice tablet if you remote control qemu host".
Also, if I use "-vnc" option (in the text above I didn't use it!) my
mouse doesn't work as expected, too. The pointers don't line up, i. e.
are not synced. But if I add "-usbdevice tablet" option, mouse will
work. As far as I know this is not a bug. But then document it, too.
Qemu's man page already says "It is very useful to enable the usb
tablet device when using this option (option -usbdevice tablet)" in
qemu 1.1.2. But I think this is not enough. The man page should say:
"You should add -usbdevice tablet option and your guest OS should
support tablet device or your mouse will not work".
To manage notifications about this bug go to:
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- [Qemu-devel] [PATCH v4 0/7] target-i386: add PCLMULQDQ and AES-NI instructions, Aurelien Jarno, 2013/03/31
- [Qemu-devel] [PATCH v4 2/7] target-i386: add pclmulqdq instruction, Aurelien Jarno, 2013/03/31
- [Qemu-devel] [PATCH v4 4/7] disas/i386.c: disassemble aes-ni instructions, Aurelien Jarno, 2013/03/31
- [Qemu-devel] [PATCH v4 3/7] target-i386: enable PCLMULQDQ on Westmere CPU, Aurelien Jarno, 2013/03/31
- [Qemu-devel] [PATCH v4 1/7] disas/i386.c: disassemble pclmulqdq instruction, Aurelien Jarno, 2013/03/31
- [Qemu-devel] [PATCH v4 7/7] target-i386: add AES-NI instructions, Aurelien Jarno, 2013/03/31
- [Qemu-devel] [PATCH v4 5/7] aes: move aes.h from include/block to include/qemu, Aurelien Jarno, 2013/03/31
- [Qemu-devel] [PATCH v4 6/7] aes: make Td[0-5] and Te[0-5] tables non static, Aurelien Jarno, 2013/03/31