Created attachment 429512 [details] sddm-greeter strace log I use kde-plasma 5 with sddm. sddm-greeter from x11-misc/sddm-0.13.0-r1 constantly ~13% CPU load. Portage 2.2.26 (python 2.7.10-final-0, hardened/linux/amd64, gcc-4.9.3, glibc-2.21-r2, 4.1.7-hardened-r1 x86_64) ================================================================= System uname: Linux-4.1.7-hardened-r1-x86_64-Intel-R-_Pentium-R-_Dual_CPU_T2370_@_1.73GHz-with-gentoo-2.2 KiB Mem: 1860424 total, 173264 free KiB Swap: 2199548 total, 2199548 free Timestamp of repository gentoo: Sat, 02 Apr 2016 13:30:01 +0000 sh bash 4.3_p42-r1 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 app-shells/bash: 4.3_p42-r1::gentoo dev-java/java-config: 2.2.0::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.10-r1::gentoo, 3.4.3-r1::gentoo dev-util/cmake: 3.3.1-r1::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.19.1::gentoo sys-apps/sandbox: 2.10-r1::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69::gentoo sys-devel/automake: 1.9.6-r4::gentoo, 1.11.6-r1::gentoo, 1.12.6::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.9.3::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 4.3::gentoo (virtual/os-headers) sys-libs/glibc: 2.21-r2::gentoo ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-mssse3 -march=core2 -O2 -pipe -mtune=core-avx-i -ggdb" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0 /usr/share/themes/oxygen-gtk/gtk-3.0" 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" CXXFLAGS="-mssse3 -march=core2 -O2 -pipe -mtune=core-avx-i -ggdb" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--jobs=2 " FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs buildpkg compressdebug config-protect-if-modified distlocks ebuild-locks fixlafiles installsources merge-sync metadata-transfer news parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j3" PKGDIR="/usr/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" PORTAGE_TMPDIR="/var/tmp" USE="3des 64bit X a52 aac aacplus aacs acl acpi aes aio airplay alsa amd64 ap apm apng app ares avx berkdb bidi bittorrent bluetooth bluray branding btrfs bzip2 cairo cdda cdr cdrom cec cgroups charconv chm cli client client-libs colord colorpicker conntrack consolekit contrast cpufreq_bench cpuload cpumining cracklib crash-reporter crda crypt css cue cups cxx d3d9 daap dbus declarative demosaic device-mapper djvu dkim dnotify dns dpi dri dri3 drm drmkms dropbox dts dv dvb dvbplayer dvbpsi dvbsetup dvd dvdarchive dvdnav dvdr ebook egl eglfs encode epub evdev exif faac faad fam fat ffmpeg flac font-styles fontconfig g3dvl gbm gcrypt gdbm geo geoip gif gimp glamor gles gles1 gles2 gles3 glew glgd glsl gold google googledrive gost gpg gphoto2 gpm gps gpu gssapi gui hardened hd hddtemp hidpi hpcups hpijs hvm hwinfo ico icons iconv icq icu idle idn imagemagick infinality iostats iproute2 iptv ipv6 jabber jingle jpeg justify kde kdepim kdm kerberos kernel kipi kms kontact kvm largepages lcdfilter lcms ldap leaps_timezone lensfun libaio libkms libnotify libsoxr libusb linuxthreads llvm llvm-shared-libs lm_sensors logrotate lpsol lto lvm lximage lz4 lzma lzo mac mad matroska metalink minizip mmx mmxext mng modern-top modules mp3 mp4 mpeg mpeg2 mpg123 mplayer mtp multicore multilib musicbrainz nat nat-pmp native natspec ncat ncurses ndiff netlink network networkmanager networkmonitor nls nokia nonblockdialogs nping npp nptl nsplugin ntp ofa ogg openal opencl opencv openexr opengl openmax openmp openssl openvg openxml opus otr pam pango pax_kernel pcre pdf peer_perms pgo phonon pie pim plasma png polarssl policykit powermanagement ppds pulseaudio python python3 qml qt3support qt5 r600-llvm-compiler rar raw rawspeed rdesktop readline reiserfs replaygain resize-optimization resolveids ru-dv ru-g ru-i ru-k scanner screensaver seccomp semantic-desktop sensors session sip skype smime smp smpeg spice sse sse2 sse3 sse4_1 sse4_2 ssl ssp ssse3 steamgames_bioshock_infinite steamgames_dwarfs steamgames_journey_down steamgames_narcissu steamgames_painkiller steamgames_portal steamgames_source_engine steamgames_tf2 steamgames_unwritten_tales steamgames_witcher2 svg sync-plugin-portage sysstat system-binutils system-boost system-cairo system-ffmpeg system-icu system-jpeg system-libs system-libvpx system-libyaml system-llvm system-lua system-mitkrb5 system-mpmath system-mupdf system-qemu system-qt system-renpy system-sqlite system-wine systeminfo systemlib taglib tci telepathy theora thin threaded threads tiering tiff tls touchpad truetype tta udev ukit unicode upower urandom usb usbredir v8 vaapi vamp vc vdpau vhost-net virtfs visio vnc volume vorbis vpx wayland wayland-compositor web-services webchannel webgl webinterface webkit webkit2 webm webp websocket websockets widgets win32 wma wmf x264 x265 xa xattr xcb xcomposite xface xfs xft xinerama xml xmpp xscreensaver xspice xtpax xv xvfb xvid xvmc xwayland yandexdisk zip zlib" ABI_X86="64" 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="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 fma3 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="efi-64 multiboot pc" 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 pdfimport" LINGUAS="ru en ru_RU en_US" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" QEMU_SOFTMMU_TARGETS="x86_64" QEMU_USER_TARGETS="x86_64" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="intel i965 radeonsi radeon qxl nouveau ilo modesetting" 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, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
Do you gave any new info ?
Same issue here.
I can confirm the issue issue. 100% cpu usage on one core, very slow response to keyboard and mouse. x11-misc/sddm-0.18.1.rc8 A GitHub discussion offers a solution.. github.com/sddm/sddm/issues/323 Basically, high cpu usage on QT rewrites to the screen, solution is to add an env variable to /etc/security/pam_env.conf echo 'QT_QUICK_BACKEND DEFAULT=software' >> /etc/security/pam_env.conf It works after restarting display-manager. No other side effects noted.
What about x11-misc/sddm-0.20.0 though?
