diff options
Diffstat (limited to 'results/classifier/108/other/2949')
| -rw-r--r-- | results/classifier/108/other/2949 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/results/classifier/108/other/2949 b/results/classifier/108/other/2949 new file mode 100644 index 00000000..cab22f7a --- /dev/null +++ b/results/classifier/108/other/2949 @@ -0,0 +1,32 @@ +device: 0.739 +graphic: 0.700 +vnc: 0.647 +other: 0.634 +performance: 0.633 +network: 0.598 +semantic: 0.494 +PID: 0.393 +files: 0.372 +socket: 0.368 +permissions: 0.312 +debug: 0.280 +boot: 0.245 +KVM: 0.124 + +VNC: virtio-gpu outputs not displayed by VNC client +Description of problem: +When combining virtio-gpu multiple outputs with VNC display, only output 0 is enabled. +Additional output are enabled when VNC client sent SetDesktopSize command. + +The following statement assumes that all displays (gtk, sdl) are disabled except VNC: + +# +Steps to reproduce: +1. Start Qemu +2. Start a VNC client on 5900 +3. Start the second VNC client on 5901 +Additional information: +The state of an output is controlled by the [enabled_output_bitmask](https://gitlab.com/qemu-project/qemu/-/blob/master/include/hw/virtio/virtio-gpu.h#L158) which is initialized to `1` at [device realization](https://gitlab.com/qemu-project/qemu/-/blob/master/hw/display/virtio-gpu-base.c#L204), thus VNC0 is always enabled. + +Other devices will set this parameter during inititliazation by calling [dpy_set_ui_info](https://gitlab.com/qemu-project/qemu/-/blob/master/ui/console.c#L754) which schedules a call to [virtio_gpu_ui_info](https://gitlab.com/qemu-project/qemu/-/blob/master/hw/display/virtio-gpu-base.c#L89). However VNC calls this function only when handling [VNC_MSG_CLIENT_SET_DESKTOP_SIZE](https://gitlab.com/qemu-project/qemu/-/blob/master/ui/vnc.c#L2607) client command.\ +If the client does not support this command or never changes the size of the default window, the respective display will remain disabled. |