After a recent upgrade hotplugging stopped working. Symptoms are for example that KDE’s device notifier doesn’t show any changes when USB disks are plugged in or removed. The same problem also applies to changed display configuration. They are not detected by KDE unless I run xrandr manually. I’ve also recently upgraded to a 5.3 kernel because of issues with my wifi (which were solved by the upgrade). I’ve also tried a 5.2.20 kernel with the same result. Reproducible: Always Steps to Reproduce: 1. Plugin a new USB stick Actual Results: The device is not visible in KDE’s device notifier. Expected Results: The device is visible in the device notifier. I’ve tried to pin down the problem by using the monitoring commands of the involved utilities: - "udevadm monitor" shows the appropriate events. - The syslog shows the add/remove events. - "dbus-monitor --system" doesn’t show the events. - "udisksctl monitor" doesn’t show the events. - "solid-hardware5 listen" doesn’t show any related events. ---- Relevant package versions: eudev 3.2.9 dbus 1.12.16 solid 5.60.0 ---- Portage 2.3.76 (python 3.6.9-final-0, default/linux/amd64/17.1/desktop/plasma, gcc-8.3.0, glibc-2.29-r2, 5.3.7-gentoo x86_64) ================================================================= System uname: Linux-5.3.7-gentoo-x86_64-Intel-R-_Core-TM-_i5-6267U_CPU_@_2.90GHz-with-gentoo-2.6 KiB Mem: 16298704 total, 13857392 free KiB Swap: 4194300 total, 4194300 free Timestamp of repository gentoo: Fri, 01 Nov 2019 07:30:01 +0000 Head commit of repository gentoo: 5bda9e060fdfa9909e5701c8357d12452b4ea4ad sh bash 4.4_p23-r1 ld GNU ld (Gentoo 2.32 p2) 2.32.0 ccache version 3.7.4 [disabled] app-shells/bash: 4.4_p23-r1::gentoo dev-java/java-config: 2.2.0-r4::gentoo dev-lang/perl: 5.28.2-r1::gentoo dev-lang/python: 2.7.16::gentoo, 3.6.9::gentoo dev-util/ccache: 3.7.4::gentoo dev-util/cmake: 3.14.6::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.6-r1::gentoo sys-apps/openrc: 0.41.2::gentoo sys-apps/sandbox: 2.13::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.69-r4::gentoo sys-devel/automake: 1.11.6-r3::gentoo, 1.16.1-r1::gentoo sys-devel/binutils: 2.32-r1::gentoo sys-devel/gcc: 8.3.0-r1::gentoo sys-devel/gcc-config: 2.0::gentoo sys-devel/libtool: 2.4.6-r3::gentoo sys-devel/make: 4.2.1-r4::gentoo sys-kernel/linux-headers: 4.19::gentoo (virtual/os-headers) sys-libs/glibc: 2.29-r2::gentoo Repositories: gentoo location: /home/portage/gentoo sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-verify-max-age: 24 sync-rsync-verify-jobs: 1 sync-rsync-verify-metamanifest: yes sync-rsync-extra-opts: kde location: /home/portage/overlays/kde masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="@FREE AdobeFlash-11.x skype-4.0.0.7-copyright PUEL Google-TOS media-fonts/exljbris-free linux-firmware no-source-code" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php7.3/ext-active/ /etc/php/cgi-php7.3/ext-active/ /etc/php/cli-php7.3/ext-active/ /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="-O2 -pipe -march=native" DISTDIR="/home/portage/distfiles" EMERGE_DEFAULT_OPTS="--jobs=2 --load-average=4.2" ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN 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 config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://gentoo.inode.at http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" INSTALL_MASK="/usr/share/locale -/usr/share/locale/de -/usr/share/locale/de_AT -/usr/share/locale/en" LANG="en_GB.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="de en" MAKEOPTS="-j4 -l5.5" PKGDIR="/home/portage/packages" PORTAGE_CONFIGROOT="/" 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="/var/tmp" USE="X a52 aac acl acpi activities alsa amd64 bash-completion berkdb bluetooth branding bzip2 cairo cdda cdr cli consolekit crypt cryptsetup cups custom-cflags custom-optimization cxx dbus declarative dri dts dvd dvdr emboss exif fam flac fortran gdbm gif glamor gpm iconv icu inotify iproute2 ipv6 jpeg kde kipi kwallet lcms libnotify libtirpc lm_sensors mad mmx mng mp3 mp4 mpeg mtp multilib ncurses networkmanager nls nptl ogg openexr opengl openmp pam pango pcre pdf phonon plasma png policykit ppds pulseaudio qml qt5 readline seccomp spell split-usr sse sse2 sse3 ssl ssse3 startup-notification svg tcpd threads tiff truetype udev udisks unicode upower usb vaapi vim-syntax vorbis widgets x264 xattr xcb xcomposite xv xvid xvmc zeroconf zlib zsh-completion" ABI_X86="64" ADA_TARGET="gnat_2018" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" 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" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 aes avx avx2 f16c fma3 pclmul popcnt sse3 sse4_1 sse4_2 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" INPUT_DEVICES="evdev keyboard mouse synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" NETBEANS_MODULES="apisupport cnd groovy gsf harness ide identity j2ee java mobility nb php profiler soa visualweb webcommon websvccommon xml" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-3" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_6" PYTHON_TARGETS="python3_6" RUBY_TARGETS="ruby25" USERLAND="GNU" VIDEO_CARDS="intel i965" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
The only recent upgrade here could have been eudev. Could you please try and check if a downgrade works?
Ok, after downgrading I found out that my kernel was missing CONFIG_FHANDLE after the upgrade and that was the culprit. So eudev 3.5.9 is fine.
Thanks for checking back, config dependency is documented in eudev ebuild.
