Public bug reported:

When pressed, the delete key inputs the Unicode 007F character instead
of deleting the following character. In most cases, this is difficult to
see, but in a terminal, the 007F is clearly visible.

The xev output for the key press is following:

KeyPress event, serial 36, synthetic NO, window 0x4200001,
    root 0x5df, subw 0x0, time 81101326, (1403,948), root:(1453,1062),
    state 0x0, keycode 119 (keysym 0xffff, Delete), same_screen YES,
    XLookupString gives 1 bytes: (7f) ""
    XmbLookupString gives 1 bytes: (7f) ""
    XFilterEvent returns: False

KeyRelease event, serial 36, synthetic NO, window 0x4200001,
    root 0x5df, subw 0x0, time 81101443, (1403,948), root:(1453,1062),
    state 0x0, keycode 119 (keysym 0xffff, Delete), same_screen YES,
    XLookupString gives 1 bytes: (7f) ""
    XFilterEvent returns: False


This is a new fresh install of Ubuntu 20.04, I don't remember the delete key 
working at any point since the installation.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 31 12:54:40 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation UHD Graphics 620 (Whiskey Lake) [8086:3ea0] (prog-if 00 [VGA 
controller])
   Subsystem: Acer Incorporated [ALI] UHD Graphics 620 (Whiskey Lake) 
[1025:1312]
InstallationDate: Installed on 2020-10-14 (16 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Acer Swift SF514-53T
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-52-generic 
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/25/2019
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.09
dmi.board.name: Carlsberg_WL
dmi.board.vendor: WL
dmi.board.version: V1.09
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.09
dmi.modalias: 
dmi:bvnInsydeCorp.:bvrV1.09:bd04/25/2019:svnAcer:pnSwiftSF514-53T:pvrV1.09:rvnWL:rnCarlsberg_WL:rvrV1.09:cvnAcer:ct10:cvrV1.09:
dmi.product.family: Swift 5
dmi.product.name: Swift SF514-53T
dmi.product.sku: 0000000000000000
dmi.product.version: V1.09
dmi.sys.vendor: Acer
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal ubuntu

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https://bugs.launchpad.net/bugs/1902361

Title:
  Delete key inputs Unicode Delete character (007F) instead of deleting
  the next character

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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1902361/+subscriptions

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