https://bugs.kde.org/show_bug.cgi?id=445297

            Bug ID: 445297
           Summary: Sensor system monitor prints NVMe drive temperature of
                    ~50°C in text but draws graph at absolute zero / 0K /
                    -273°C
           Product: plasma-systemmonitor
           Version: 5.23.3
          Platform: Gentoo Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: ksysguard-b...@kde.org
          Reporter: devuran...@gmx.net
                CC: ahiems...@heimr.nl, plasma-b...@kde.org
  Target Milestone: ---

Created attachment 143423
  --> https://bugs.kde.org/attachment.cgi?id=143423&action=edit
screenshot of NVMe drive temperature sensor widget

SUMMARY

The graph of NVMe drive temperature sensors shows wrong temperature while the
text shows the correct one (at least something reasonable).

STEPS TO REPRODUCE
1. Have NVMe drive with temperature sensor
2. Set up Plasma applet to monitor it
3. Observe difference between graph and text

OBSERVED RESULT

See attached screenshot of two NVMe drive temperature sensors: The texts say
"47,9°C" and "60,9°C", but the only line in the graph is drawn at absolute zero
/ 0K / -273°C.

EXPECTED RESULT

If the sensor was reporting buggy data, I would at least expect KDE Plasma to
render it consistently in text and graph.

SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux 2.8
KDE Plasma Version: 5.23.3
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
Kernel Version: 5.15.1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 5 2400G with Radeon Vega Graphics
Memory: 13,5 GiB of RAM
Graphics Processor: AMD Radeon™ Vega 11 Graphics

ADDITIONAL INFORMATION

Portage 3.0.28 (python 3.9.8-final-0,
default/linux/amd64/17.1/desktop/plasma/systemd, gcc-11.2.0, glibc-2.33-r7,
5.15.1 x86_64)
=================================================================
                         System Settings
=================================================================
System uname:
Linux-5.15.1-x86_64-AMD_Ryzen_5_2400G_with_Radeon_Vega_Graphics-with-glibc2.33
KiB Mem:    14186384 total,    742112 free
KiB Swap:    7092220 total,   6215480 free
Timestamp of repository gentoo: Wed, 10 Nov 2021 06:45:01 +0000
Head commit of repository gentoo: 745a5e2a181fbc3b6c4556d209c2913e551ab8fb
Timestamp of repository haskell: Tue, 09 Nov 2021 10:53:03 +0000
Head commit of repository haskell: c6d68db0123e1d33e466e7193d4f8809ecf7ef1e

Head commit of repository local: 2d87deda70a5e0167d8ba10d68067821a1ce73ae

sh bash 5.1_p8
ld GNU ld (Gentoo 2.37_p1 p0) 2.37
ccache version 4.4.2 [disabled]
app-shells/bash:          5.1_p8::gentoo
dev-java/java-config:     2.3.1::gentoo
dev-lang/perl:            5.34.0-r5::gentoo
dev-lang/python:          2.7.18_p13::gentoo, 3.9.8::gentoo, 3.10.0_p1::gentoo
dev-lang/rust:            1.56.1::gentoo
dev-util/ccache:          4.4.2::gentoo
dev-util/cmake:           3.21.4::gentoo
sys-apps/baselayout:      2.8::gentoo
sys-apps/sandbox:         2.29::gentoo
sys-devel/autoconf:       2.13-r1::gentoo, 2.71-r1::gentoo
sys-devel/automake:       1.13.4-r2::gentoo, 1.16.5::gentoo
sys-devel/binutils:       2.37_p1::gentoo
sys-devel/gcc:            11.2.0::gentoo
sys-devel/gcc-config:     2.4::gentoo
sys-devel/libtool:        2.4.6-r6::gentoo
sys-devel/make:           4.3::gentoo
sys-kernel/linux-headers: 5.14::gentoo (virtual/os-headers)
sys-libs/glibc:           2.33-r7::gentoo
Repositories:

gentoo
    location: /var/cache/portage/gentoo
    sync-type: rsync
    sync-uri: rsync://rsync.de.gentoo.org/gentoo-portage
    priority: -1000
    sync-rsync-verify-metamanifest: yes
    sync-rsync-extra-opts: --new-compress
    sync-rsync-verify-max-age: 24
    sync-rsync-verify-jobs: 1

haskell
    location: /var/db/repos/haskell
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/haskell.git
    masters: gentoo

crossdev
    location: /var/cache/portage/crossdev
    masters: gentoo
    priority: 100

local
    location: /var/cache/portage/local
    sync-type: git
    sync-uri: https://github.com/devurandom/gentoo-overlay.git
    masters: gentoo
    priority: 1000

ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="@FREE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-pipe -O2 -march=znver1"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config
/usr/share/gnupg/qualified.txt /usr/share/maven-bin-3.8/conf"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d
/etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild
/etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d
/etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-pipe -O2 -march=znver1"
DISTDIR="/var/cache/portage/distfiles"
EMERGE_DEFAULT_OPTS="--nospinner"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB
PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME
XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs
binpkg-multi-instance buildsyspkg cgroup compressdebug
config-protect-if-modified distlocks ebuild-locks fakeroot fixlafiles
ipc-sandbox merge-sync mount-sandbox multilib-strict network-sandbox news
parallel-fetch parallel-install pid-sandbox preserve-libs protect-owned
qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn
unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/
http://ftp.fau.de/gentoo http://ftp.halifax.rwth-aachen.de/gentoo/
http://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/
http://distfiles.gentoo.org";
LANG="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j6 -l4"
PKGDIR="/var/cache/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_EXTRA_OPTS="--new-compress"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times
--omit-dir-times --compress --force --whole-file --delete --stats
--human-readable --timeout=180 --exclude=/distfiles --exclude=/local
--exclude=/packages --exclude=/.git"
PORTAGE_TMPDIR="/tmp"
USE="7z 7zip X a52 aac aacplus aacs acl acpi activities aio alsa amd64 amr
appindicator appstream aptx archive audit avahi avif ayatana bdplus blake2 blas
bluetooth bluray bpf branding brotli bs2b btrfs bzip2 cairo caps cdda cddb cdio
cdr celt cet chromaprint cjk cli clipboard color-management colord conntrack
crypt cups curl d3d9 dav1d dbus declarative device-mapper dirac djvu dmabuf dri
drm dts dvb dvd dvdr ed25519 editorconfig egl elf emboss emoji encode epub
evdev exif faudio fax fdk ffmpeg fftw filecaps firefox firewalld
fish-completion fits flac fontconfig fontforge fortran fribidi gamepad gbm gdal
gdbm geoclue geolocation gif git gles2 gles3 gmp gnome-online-accounts gnupg
google googledrive gpg gps graphicsmagick gstreamer gtk gtk3 gui gzip harfbuzz
hdf5 heif http2 hugepages ibus iconv icu id3tag idn imlib inotify introspection
ipv6 iwd jemalloc jpeg jpeg2k json kde kipi kms kwallet lapack latex lcms ldac
libatomic libglvnd libidn2 libinput libnotify libproxy libsecret libsoxr
libtirpc libvirt lm-sensors lrz lto lv2 lvm lz4 lzma lzo mad magic man mariadb
markdown mbim mercurial mjpeg mng mobi modemmanager modplug mp3 mp4 mpeg
mplayer mpris mtp multilib mysql ncurses netlink networkmanager nftables nls
nptl numa office ofx ogg openal opencl opencv openexr opengl openh264 openmax
openmp opus otf pam pango pcap pch pcre pcre2 pdf pgo pipewire pixman pkcs11
pkcs7 plasma pm-utils png policykit postscript ppds prison pulseaudio python
qml qrcode qt5 rav1e raw rdp readline rtmp rubberband samba sasl scanner
schroedinger screencast sctp sdl sdl2 seatd seccomp semantic-desktop share
smartcard snappy sparse speech speex spell spice srt ssl startup-notification
steamruntime stemmer svg systemd tbb teamd telemetry telepathy tga theora
threads thunderbolt tiff timezone tmux tpm truetype udev udisks uinput unicode
unwind upnp upnp-av upower usb utempter v4l v4l2 vaapi vamp vdpau vkd3d vorbis
vpx vtk vulkan wasm wavpack wayland webchannel webengine webp widgets wireguard
wmf woff2 wps x264 x265 xattr xcb xinerama xkb xml xmp xrandr xscreensaver xv
xvid xwayland xxhash xz yaml zeroconf zeromq zimg zlib zstd" ABI_X86="64"
ADA_TARGET="gnat_2019" ALSA_CARDS="hda-intel" APACHE2_MODULES="authn_core
authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon
authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile
authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock
deflate dir disk_cache env expires ext_filter file_cache filter headers include
info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif
speling status unique_id userdir usertrack vhost_alias"
CALLIGRA_FEATURES="karbon sheets words" CAMERAS="ptp2" COLLECTD_PLUGINS="df
interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 f16c
fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a
ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18
garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom
oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing
tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="joystick
libinput" KERNEL="linux" L10N="de de-DE en en-GB ar fa tr ja ko zh zh-CN zh-TW"
LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses
text" LIBREOFFICE_EXTENSIONS="nlpsolver scripting-javascript wiki-publisher"
LLVM_TARGETS="AMDGPU BPF RISCV WebAssembly" LUA_SINGLE_TARGET="lua5-1"
LUA_TARGETS="lua5-1 lua5-4 luajit" OFFICE_IMPLEMENTATION="libreoffice"
PHP_TARGETS="php7-3 php7-4" POSTGRES_TARGETS="postgres12 postgres13"
PYTHON_SINGLE_TARGET="python3_9" PYTHON_TARGETS="python3_9 pypy pypy3"
QEMU_SOFTMMU_TARGETS="riscv32 riscv64 x86_64" QEMU_USER_TARGETS="riscv32
riscv64" RUBY_TARGETS="ruby26 ruby27" USERLAND="GNU" VIDEO_CARDS="amdgpu virgl"
XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface
geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark
dhcpmac delude chaos account"
Unset:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, LINGUAS,
PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS,
PORTAGE_COMPRESS_FLAGS, RUSTFLAGS

=================================================================
                        Package Settings
=================================================================

kde-plasma/plasma-systemmonitor-5.23.3::gentoo was built with the following:
USE="-debug" ABI_X86="(64)"

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