Ever since the KDE5 upgrade, firefox has been behaving very oddly. The address bar flashes between the adress being loaded and the new tab (enter addres of search). Clicking on other tabs may take several minutes to respond, if firefox is left running eventually my whole system hangs. I reported this to mozilla <https://bugzilla.mozilla.org/show_bug.cgi?id=1289978> they are blaming "layers.acceleration.force-enabled" for my problems. They suggested using the one from getfirefox.com, which is the one I am using now, which works fine. So the most plausible explanation is the use flags for www-client/firefox are enabling layers acceleration when they should not be. I am willing to fiddle with USE flags, I just don't know which one applies, I suspect "hwaccel". # emerge --info www-client/firefox Portage 2.2.28 (python 3.4.3-final-0, default/linux/amd64/13.0/desktop/plasma, gcc-4.9.3, glibc-2.22-r4, 4.4.6-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.4.6-gentoo-x86_64-AMD_FX-tm-8350_Eight-Core_Processor-with-gentoo-2.2 KiB Mem: 16432576 total, 8258204 free KiB Swap: 506040 total, 506040 free Timestamp of repository gentoo: Sun, 07 Aug 2016 16:15:01 +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-r3::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: 1.11.6-r1::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: 2.22-r4::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.au.gentoo.org/gentoo-portage priority: -1000 Daiajo location: /usr/local/portage masters: gentoo ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /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" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs buildpkg config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync 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://distfiles.gentoo.org" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j2" 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 --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="X a52 aac acl acpi alsa alsa-plugin amd64 branding bzip2 cairo cdda cdr cli consolekit cracklib crypt css cxx dbus declarative dhcp dri dts dvd dvdr emboss encode exif fam firefox flac fortran gdbm gif glamor gnutls gpm gtk iconv icu ipv6 java jpeg kde kipi lcms ldap libnotify mad mmx mmxext mng modules mp3 mp4 mpeg multilib mysql ncurses nls nptl nsplugin ogg opengl openmp pam pango pcre pdf phonon plasma png policykit ppds pulseaudio qml qt3support qt4 qt5 readline script sdl seccomp semantic-desktop session spell sql sse sse2 ssl startup-notification svg tcpd tiff truetype udev udisks unicode upower usb vim-syntax vorbis widgets wxwidgets x264 xattr xcb xcomposite xinerama xml xscreensaver xv xvid zlib" ABI_X86="64 32" 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 fma3 fma4 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 xop" 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" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" L10N="en-GB" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en_GB" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="ati fglrx radeon" 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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON ================================================================= Package Settings ================================================================= www-client/firefox-47.0.1::gentoo was built with the following: USE="dbus gmp-autoupdate hwaccel jemalloc3 jit pulseaudio startup-notification -bindist -custom-cflags -custom-optimization -debug -gtk2 -hardened (-neon) (-pgo) (-selinux) (-system-cairo) -system-harfbuzz -system-icu -system-jpeg -system-libevent -system-libvpx -system-sqlite -test -wifi" ABI_X86="64" L10N="en-GB -ach -af -an -ar -as -ast -az -be -bg -bn-BD -bn-IN -br -bs -ca -cs -cy -da -de -el -en-ZA -eo -es-AR -es-CL -es-ES -es-MX -et -eu -fa -fi -fr -fy -ga -gd -gl -gu -he -hi -hr -hsb -hu -hy -id -is -it -ja -kk -km -kn -ko -lt -lv -mai -mk -ml -mr -ms -nb -nl -nn -or -pa -pl -pt-BR -pt-PT -rm -ro -ru -si -sk -sl -son -sq -sr -sv -ta -te -th -tr -uk -uz -vi -xh -zh-CN -zh-TW" CFLAGS="-pipe" CXXFLAGS="-pipe" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-rpath=/usr/lib64/firefox,--enable-new-dtags"
(In reply to Daiajo Tibdixious from comment #0) > Ever since the KDE5 upgrade, firefox has been behaving very oddly. This problem occurs in Plasma-5 session, right? Is this problem reproducible outside of KDE session? > I am willing to fiddle with USE flags, I just don't know which one applies, > I suspect "hwaccel". 'hwaccel' indeed enables 'layers.acceleration.force-enabled' option. Try disabling this USE flag.
In my user account, after doing startx, firefox does not start. A window appears called "untitled" and it just sits there. I'm using chromium at the moment. This error does appear in the console (xterm) Can't find symbol 'EGLImageTargetRenderbufferStorageDES'. repeated twice (not that I typed that in, its not a copy/paste). I am going to proceed rebuilding firefox with -hwaccel in package.use
I just realized I put firefox on ~amd64, thinking the latest version might be better, I'll regress it to the stable version and retest.
Well the version I was using has become stable, so I just rebuild it with ~amd64 removed and hwaccel still there. The rebuild version had the same problem, it would not start within xterm. Added the -hwaccel use flag & rebuild it, now firefox starts within xterm and is stable. I tried the most harsh app which always failed: cookieclicker, which is now running fine. So it may have been a coincidence that this happened at the same time as the kde5 upgrade.
I see. This is most likely the same issue as bug 569036, since you have that "Can't find symbol 'EGLImageTargetRenderbufferStorageOES'" error and similar problems. *** This bug has been marked as a duplicate of bug 569036 ***
