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qemu-system-aarch64: with "-display gtk" arrow keys are received as just ^[ on ttyAMA0
I originally observed this on Debian packaged qemu 5.2 at
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=976808
Today I checked out the latest git source at
Sun, 13 Dec 2020 19:21:09 +0900
and configured the source as follows:
./configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib/qemu \
--localstatedir=/var --disable-blobs --disable-strip --localstatedir=/var \
--libdir=/usr/lib/aarch64-linux-gnu \
--firmwarepath=/usr/share/qemu:/usr/share/seabios:/usr/lib/ipxe/qemu \
--target-list=aarch64-softmmu,arm-softmmu --disable-werror \
--disable-user --enable-gtk --enable-vnc
then executed "make" on an ARM64 (not an x86_64) host,
running the latest Debian testing.
I did the following commands on an arm64 host with the Debian Installer Alpha 3 at
https://cdimage.debian.org/cdimage/bullseye_di_alpha3/arm64/iso-cd/debian-bullseye-DI-alpha3-arm64-netinst.iso
#!/bin/sh
ARCH=arm64
IMAGE=`pwd`/qemu-disk-${ARCH}.qcow2
CDROM=`pwd`/debian-bullseye-DI-alpha3-${ARCH}-netinst.iso
rm -f $IMAGE
qemu-img create -f qcow2 -o compat=1.1 -o lazy_refcounts=on -o preallocation=off $IMAGE 20G
cd /var/tmp
cp /usr/share/AAVMF/AAVMF_VARS.fd .
$HOME/qemu-git/qemu/build/qemu-system-aarch64 \
-display gtk -enable-kvm -machine virt -cpu host -m 3072 -smp 2\
-net nic,model=virtio -net user -object rng-random,filename=/dev/urandom,id=rng0 \
-device virtio-rng-pci,rng=rng0,id=rng-device0 \
-drive if=virtio,file=${IMAGE},index=0,format=qcow2,discard=unmap,detect-zeroes=unmap,media=disk \
-drive if=virtio,file=${CDROM},index=1,format=raw,readonly=on,media=cdrom \
-drive if=pflash,format=raw,unit=0,file=/usr/share/AAVMF/AAVMF_CODE.fd,readonly=on \
-drive if=pflash,format=raw,unit=1,file=`pwd`/AAVMF_VARS.fd
Then 4 arrow keys on the physical keyboard are received as just "^[".
This symptom was not observed on qemu-system-x86_64.
This symptom was not observed with virt-manager on my arm64 host, neither.
This seems unique to -display gtk of qemu-system-aarch64.
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