When I switch to an external monitor by pressing fn+F7 and then switch back, gnome sets the highest possible resolution on my panel - 2880x1620. The expected behaviour is to restore the resolution the panel had before fn+F7 switch.
Please run "gnome-control-center display" and repeat all the steps, then look to any messages shown there and tell us Also provide "emerge --info gnome-control-center" output
anton@r9-008cln ~ $ emerge --info gnome-control-center Portage 2.3.0 (python 3.4.4-final-0, default/linux/amd64/13.0/desktop/gnome/systemd, gcc-5.4.0, glibc-2.23-r2, 4.6.3-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.6.3-gentoo-x86_64-Intel-R-_Core-TM-_i7-4700MQ_CPU_@_2.40GHz-with-gentoo-2.2 KiB Mem: 15781668 total, 4199240 free KiB Swap: 20971516 total, 20971516 free Timestamp of repository gentoo: Mon, 11 Jul 2016 04:45:01 +0000 sh bash 4.3_p46 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 app-shells/bash: 4.3_p46::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.24.0-r1::gentoo dev-lang/python: 2.7.11-r2::gentoo, 3.4.4::gentoo dev-util/cmake: 3.5.2-r1::gentoo dev-util/pkgconfig: 0.29.1::gentoo sys-apps/baselayout: 2.2-r1::gentoo sys-apps/openrc: 0.21.2::gentoo sys-apps/sandbox: 2.10-r2::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r2::gentoo sys-devel/automake: 1.11.6-r2::gentoo, 1.12.6-r1::gentoo, 1.13.4-r1::gentoo, 1.14.1-r1::gentoo, 1.15-r2::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.9.3::gentoo, 5.3.0::gentoo, 5.4.0::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r2::gentoo sys-devel/make: 4.2.1::gentoo sys-kernel/linux-headers: 4.6::gentoo (virtual/os-headers) sys-libs/glibc: 2.23-r2::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.ru.gentoo.org/gentoo-portage priority: -1000 rugubara location: /home/anton/devel/rugubara masters: gentoo priority: 0 anders-larsson location: /var/lib/layman/anders-larsson masters: gentoo priority: 50 betagarden location: /var/lib/layman/betagarden masters: gentoo priority: 50 bumblebee location: /var/lib/layman/bumblebee masters: gentoo priority: 50 fw-overlay location: /var/lib/layman/fw-overlay masters: gentoo priority: 50 ixit location: /var/lib/layman/ixit masters: gentoo priority: 50 jorgicio location: /var/lib/layman/jorgicio masters: gentoo priority: 50 kde location: /var/lib/layman/kde masters: gentoo priority: 50 proaudio location: /var/lib/layman/pro-audio masters: gentoo priority: 50 sabayon location: /var/lib/layman/sabayon masters: gentoo priority: 50 steam-overlay location: /var/lib/layman/steam masters: gentoo priority: 50 stuff location: /var/lib/layman/stuff masters: gentoo priority: 50 sunrise location: /var/lib/layman/sunrise masters: gentoo priority: 50 telred location: /var/lib/layman/telred masters: gentoo priority: 50 tlp location: /var/lib/layman/tlp masters: gentoo priority: 50 x11 location: /var/lib/layman/x11 masters: gentoo priority: 50 Installed sets: @kde-frameworks-live ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=haswell -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 -msahf -mmovbe -maes -mpclmul -mpopcnt -mabm -mfma -mbmi -mbmi2 -mavx -mavx2 -msse4.2 -msse4.1 -mlzcnt -mrdrnd -mf16c -mfsgsbase -mfxsr -mxsave -mxsaveopt --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=6144 -mtune=haswell -fstack-protector-strong" 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/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe -march=haswell -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 -msahf -mmovbe -maes -mpclmul -mpopcnt -mabm -mfma -mbmi -mbmi2 -mavx -mavx2 -msse4.2 -msse4.1 -mlzcnt -mrdrnd -mf16c -mfsgsbase -mfxsr -mxsave -mxsaveopt --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=6144 -mtune=haswell -fstack-protector-strong" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync metadata-transfer news parallel-fetch 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://trumpetti.atm.tut.fi/gentoo/" LANG="ru_RU.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9" PKGDIR="/usr/portage/etersoft" 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 aes alsa amd64 archive avahi avx avx2 bash-completion berkdb bluetooth bluray branding bzip2 cairo cdda cdr cli colord cracklib crypt cups cxx cycles dbus dhcpcd dri dri3 dts dvd dvdr eds egl emboss encode evdev evo exif extras faac fam ffmpeg fftw firefox flac fma3 fortran fprint frei0r g711 g722 g7221 gbm gdbm gif gimp gles2 gnome gnome-keyring gnome-online-accounts gpm gstreamer gtk gtk3 http iconv idn ieee1394 introspection ipv6 jack javafx jpeg jpeg2k kms lcms ldap libnotify libsecret lv2 lxc mad midi mmx mmxext mng modules mp3 mp4 mpeg mtp multilib native-headset nautilus ncurses networkmanager nls nptl nsplugin nvenc ogg opengl openmp pam pango pcre pdf png policykit popcnt postproc ppds pulseaudio qt3support qt4 rar raw readline realtime samba sdl seccomp sendto session smp speex spell sse sse2 sse3 sse4_1 sse4_2 ssl ssse3 startup-notification svg systemd tcpd theora threads tiff truetype udev udisks unicode upower usb v4l vaapi vorbis vpx wavpack wayland winbind wxwidgets x264 x265 xa xattr xcb xml xv xvid xvmc 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" APACHE2_MPMS="prefork" 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="multiboot efi-64 pc" INPUT_DEVICES="evdev synaptics" KERNEL="linux" L10N="en_US ru_RU" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="nlpsolver" LINGUAS="en ru" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby22 ruby23" USERLAND="GNU" VIDEO_CARDS="intel i965 nvidia" XFCE_PLUGINS="brightness clock trash battery power" 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" USE_PYTHON="3.4" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= gnome-base/gnome-control-center-3.20.1::gentoo was built with the following: USE="bluetooth colord cups gnome-online-accounts i18n networkmanager v4l wayland -debug -kerberos" ABI_X86="64" INPUT_DEVICES="-wacom" anton@r9-008cln ~ $
gnome-control-center display doesn't display any output. When I press fn+F7 the following messages appear in the system journal: (I was on 1920x1080) июл 11 07:22:38 r9-008cln root[18694]: ACPI event unhandled: video/switchmode VMOD 00000080 00000000 K июл 11 07:22:38 r9-008cln /usr/libexec/gdm-x-session[886]: (II) intel(0): resizing framebuffer to 2880x1620 июл 11 07:22:38 r9-008cln /usr/libexec/gdm-x-session[886]: (II) intel(0): switch to mode 2880x1620@60.0 on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
This is usually affected by the kernel, what kernel are you running? Did you try with a newer one?
