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When a guest is rebooted, the QXL driver gets unloaded at some point in the reboot process. When the driver is unloaded, the spice server sets a single flag to FALSE: RedWorker::driver_cap_monitors_config. This flag indicates whether the driver is capable of sending its own monitors config messages to the client. The only place this flag is used is when a new primary surface is created. If this flag is true, the server assumes that the driver will send its own monitors config very soon after the surface is created. If it's false, the server directly sends its own temporary monitors config message to the client based on the size of the just-created primary surface. This temporary monitors config message always has a maximum monitor count of 1. This flag is set to false at startup so that in early boot (e.g. vga text mode), the server will send out these 'temporary' monitor config messages to the client whenever the primary surface is destroyed and re-created. This causes the client to resize its window to match the size of the guest. When the QXL driver is loaded and starts taking over the monitors config responsibilities, we set this flag to true and the server stops sending monitors config messages out on its own. If we reboot and set this flag to false, it will result in the server sending a monitors config message to the client indicating that the guest now supports a maximum of 1 monitor. If the guest happens to have more than one display window open, it will destroy those extra windows because they exceed the maximum allowed number of monitors. This means that if you reboot a guest with 4 monitors, after reboot it will only have 1 monitor. To avoid this, we assume that if we had the ability to support multiple monitors at some point, that will return at some point. So when the server constructs its own monitors config message to send to the client (when the driver_cap_monitors_config flag is false), we send the previous maximum monitor count instead of always sending a maximum of 1. Resolves: rhbz#1274447 Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Acked-by: Frediano Ziglio <fziglio@redhat.com> |
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| docs | ||
| m4 | ||
| server | ||
| spice-common@0996c33d6d | ||
| tests | ||
| tools | ||
| uncrustify_cfg | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .gitmodules | ||
| .mailmap | ||
| .travis.yml | ||
| AUTHORS | ||
| autogen.sh | ||
| cfg.mk | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| GNUmakefile | ||
| maint.mk | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| spice-server.pc.in | ||
| TODO.multiclient | ||
SPICE: Simple Protocol for Independent Computing Environments
=============================================================
SPICE is a remote display system built for virtual environments which
allows you to view a computing 'desktop' environment not only on the
machine where it is running, but from anywhere on the Internet and
from a wide variety of machine architectures.
Installation
------------
The SPICE package uses GNU autotools, so the build install process
follows the standard process documented in the INSTALL file. As a
quick start you can do
./configure --prefix=/usr --sysconfdir=/etc \
--localstatedir=/var --libdir=/usr/lib
make
sudo make install
Or to install into a private user specific location
./configure --prefix=$HOME/spice
make
make install
The following mandatory dependancies are required in order to
build SPICE
Spice protocol >= 0.9.0
Pixman >= 0.17.7
OpenSSL
libjpeg
zlib
Cyrus-SASL
The following optional dependancies increase the available
functionality
GE Gui >= 0.6.0, < 0.7.0 (GUI app support)
OpenGL (GUI app support)
Alsa (Linux support)
XRandR >= 1.2 (X11 support)
Xinerama >= 1.0 (X11 support)
libcacard >= 0.1.2 (Smartcard support)
Communication
-------------
To communicate with the development team, or to post patches
there is a technical mailing list:
http://lists.freedesktop.org/mailman/listinfo/spice-devel
There is also a mailing list for new release announcements:
http://lists.freedesktop.org/archives/spice-announce/
To view known bugs, or report new bugs, in SPICE visit
https://bugs.freedesktop.org/describecomponents.cgi?product=Spice
Bugs found when using an OS distribution's binary packages should
be reported to the OS vendors' own bug tracker first.
The latest SPICE code can be found in GIT at:
http://cgit.freedesktop.org/spice/
Licensing
---------
SPICE is provided under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Please see the COPYING file for the complete LGPLv2+ license
terms, or visit <http://www.gnu.org/licenses/>.
Experimental Features
---------------------
To enable multiple client connections, set:
SPICE_DEBUG_ALLOW_MC=1
-- End of readme