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Description of problem:
Title number is wrong when a guest with 4 monitors running on RHEVM.
Version-Release number of selected component (if applicable):
virt-viewer-0.5.2-16.el6.x86_64
Reproduce steps:
1. Install a win7 x86_64 guest on rhevm.
2. Edit the guest, make sure it has spice device and 4 monitors
3. Install qxl driver
4. Restart guest.
5. Extend the desktop to 4 monitors.
6. Right click on desktop, choose screen resolution.
7. Click Identify.
8. Compare numbers on displays with form title numbers.
Actual results:
1. The 3rd monitor is displayed in 4th form.
2. The 4th monitor is displayed in 3rd form
Expected results:
1. Number of displays should be same as title number.
Additional info:
Comment 5Marc-Andre Lureau
2013-05-09 22:53:38 UTC
Do you have a reproducer? I have never encountered that bug.
From what I can read in virt-viewer code, it already correctly reports monitor number (thanks to nth-display property, although it is more nth-monitor)
However, I don't think the Windows QXL driver guarantees mapping of nth monitor to nth channel. Moving there for now.
I could not reproduce this with spice-guest-tools 0.7.4 (http://www.spice-space.org/download/windows/spice-guest-tools/spice-guest-tools-0.74.exe) running
The driver is not responsible for spice display channels.
The order of channel creation is implicit by the order of pci card initialization, to make it explicit we need to add a number to the interface (QXLInterface) between qemu and spice.
# Main VGA channel creation
main->..->pc_vga_init->..->qxl_init_primary->qxl_init_common->..->spice_server_add_interface->red_dispatcher_init->red_dispatcher_display_channel_create
# Later via ordering of statements in qemu's main
main->qemu_opts_foreach->device_init_func->qdev_device_add->..->qxl_init_secondary->..->spice_server_add_interface->red_dispatcher_init->red_dispatcher_display_channel_create
Since main ordering can change in the future (red_dispatcher calls are serialized via a pipe) we should add an identifier.
Needs fixes in spice & qemu, moving to spice (will clone later). Already at low priority.
Comment 15Marc-Andre Lureau
2015-04-22 00:43:59 UTC
(In reply to Marc-Andre Lureau from comment #15)
> Can you still reproduce? thanks
Hi Marc-Andre Lureau,
Since bug reporter is not here, please needinfo to me if you're not clear with following steps, thanks.
I cannot reproduce this issue any more.
Environment:
Host setup with 7.1 released iso.
Guest: Prepare a win7 x86_64 guest on rhevm.
Packages version:
libvirt-1.2.14-1.el7.x86_64
spice-gtk-0.22-2.el7.x86_64
xorg-x11-drv-qxl-0.1.1-12.el7.x86_64
virt-viewer-0.6.0-12.el7.x86_64
spice-vdagent-0.14.0-9.el7.x86_64
Steps:
1. Prepare a win7 x86_64 guest on rhevm, make sure it has spice device and 4 monitors and qxl driver installed.
2. Extend the desktop to 4 monitors.
3. Right click on desktop, choose screen resolution.
4. Click Identify.
5. Compare numbers on displays with form title numbers.
After step5, Number of displays are same with title number.
Comment 17Marc-Andre Lureau
2015-04-22 10:04:12 UTC
(In reply to zhoujunqin from comment #16)
> (In reply to Marc-Andre Lureau from comment #15)
> > Can you still reproduce? thanks
>
> Hi Marc-Andre Lureau,
> Since bug reporter is not here, please needinfo to me if you're not clear
> with following steps, thanks.
>
> I cannot reproduce this issue any more.
thanks, let's close it then