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qm: display: enahnce and add cirrus description
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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qm.adoc
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qm.adoc
@ -602,27 +602,32 @@ Display
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QEMU can virtualize a few types of VGA hardware. Some examples are:
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* *std*, the default, emulates a card with Bochs VBE extensions.
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* *cirrus*, this was once the default, it emulates a very old hardware module
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with all its problems. This display type should only be used if really
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necessary footnote:[https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/
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qemu: using cirrus considered harmful], e.g., if using Windows XP or earlier
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* *vmware*, is a VMWare SVGA-II compatible adapter.
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* *qxl*, is the QXL paravirtualized graphics card. Selecting this also
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enables SPICE for the VM.
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You can edit the amount of memory given to the virtual GPU, by setting
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the *memory* option. This can enable higher resolutions inside the VM,
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the 'memory' option. This can enable higher resolutions inside the VM,
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especially with SPICE/QXL.
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Selecting Multi-Monitor mode for SPICE (e.g., qxl2 for dual monitors) has
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some implications:
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As the memory is reserved by display device, selecting Multi-Monitor mode
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for SPICE (e.g., `qxl2` for dual monitors) has some implications:
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* Windows needs a device for each monitor, so if your ostype is some
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version of windows, {pve} gives the VM an extra device per monitor.
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* Windows needs a device for each monitor, so if your 'ostype' is some
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version of Windows, {pve} gives the VM an extra device per monitor.
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Each device gets the specified amount of memory.
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* Linux VMs, can always enable more virtual monitors, but selecting
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a Multi-Monitor mode multiplies the memory given to the device with
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the number of monitors.
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Selecting *serialX* as display disables the VGA output, and redirects
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the Web Console to the selected serial port. A configured memory setting
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will be ignored in that case.
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Selecting `serialX` as display 'type' disables the VGA output, and redirects
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the Web Console to the selected serial port. A configured display 'memory'
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setting will be ignored in that case.
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[[qm_usb_passthrough]]
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USB Passthrough
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