Created attachment 501548 [details] Video BIOS for GF108GLM [NVS 5200M] I'm using Gentoo Linux on my Dell Latitude E6530 laptop. It has a nVidia GF108GLM video card and it provides the Optimus technology, which I have disabled in the BIOS in favour of using only the nVidia card. I'm using Gentoo kernel 4.9.34 with its nouveau driver, mode setting active with no related, specific kernel argument. I noticed a strange behaviour when I have applications viewed full-screen. I haven't been able to determine a pattern with 100% certainty but in 90% cases it happens when I have a web browser active, either full-screen, reduced or in a normal window. What happens is, after a delay that is mainly random, I see my entire screen suddenly overlayed with a full-screen image that covers the entire screen, completely overlaying the visual of the application I'm currently using. For instance, say I'm working in a full-screen terminal or in a full-screen Geany. Then all of a sudden the entire screen is covered with an overlay image of what happened to be visible before on my screen: it can be a render of what the screensaver was showing right before I unlocked it or my desktop background picture. In certain cases I can move the mouse pointer over certain areas to see the application I'm using coming back partly in areas the mouse is hovering. Sometimes the only way to see what I'm typing is to switch to another application window (Alt + Tab) and back but the "rogue" overlay image always comes back after 2-3 seconds. The phenomenon can take some random time before it manifests itself. But when it happens, it takes only 2-3 seconds to happen again when I switch to another window and back. The glitch happens (like 98% of the time) when I'm using an application that is displayed full-screen and I have a web browser active, full-screen or not. But it also happened, just once while I was using a non-full-screen application, such as Gedit or a terminal window and no web browser application running. So far the trouble goes away when I close all of my web browser application windows but I also saw it happen (only once) while there were no web browser application running. The web browsers I happen to use, which seem to trigger the glitch are Seamonkey suite, Firefox and Palemoon. I haven't used any other graphical, GUI browser. Here's "emerge --info": Portage 2.3.8 (python 2.7.12-final-0, default/linux/amd64/13.0/desktop, gcc-5.4.0, glibc-2.23-r4, 4.9.34-gentoo x86_64) ================================================================= System uname: Linux-4.9.34-gentoo-x86_64-Intel-R-_Core-TM-_i5-3230M_CPU_@_2.60GHz-with-gentoo-2.4.1 KiB Mem: 8120480 total, 3547300 free Timestamp of repository gentoo: Sun, 22 Oct 2017 08:00:01 +0000 Head commit of repository gentoo: 31979e96110a5ea83ddaa0e7572b271dbe6df788 sh bash 4.3_p48-r1 ld GNU ld (Gentoo 2.28.1 p1.0) 2.28.1 ccache version 3.2.4 [enabled] app-shells/bash: 4.3_p48-r1::gentoo dev-lang/perl: 5.24.3::gentoo dev-lang/python: 2.7.12::gentoo, 3.4.5::gentoo dev-util/ccache: 3.2.4::gentoo dev-util/cmake: 3.8.2::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.4.1-r2::gentoo sys-apps/openrc: 0.32.1::gentoo sys-apps/sandbox: 2.10-r3::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.15-r2::gentoo sys-devel/binutils: 2.28.1::gentoo sys-devel/gcc: 5.4.0-r3::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r3::gentoo sys-devel/make: 4.2.1::gentoo sys-kernel/linux-headers: 4.4::gentoo (virtual/os-headers) sys-libs/glibc: 2.23-r4::gentoo Repositories: gentoo location: /portage.d/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 local location: /portage.d/overlays/local masters: gentoo crossdev location: /portage.d/overlays/crossdev masters: gentoo priority: 10 Installed sets: @electronics, @media, @themes, @xfce4, @xorg-test ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /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=native -fomit-frame-pointer" DISTDIR="/portage.d/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs ccache config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict 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" LANG="en_GB.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j3" PKGDIR="/portage.d/packages/x86_64-pc-linux-gnu" 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="/portage.d/tmp" USE="X a52 aac acl acpi alsa amd64 berkdb bluetooth branding bzip2 cairo cdda cdr cli consolekit cracklib crypt cups cxx dbus dri dts dvd dvdr emboss encode exif fam firefox flac fortran gdbm gif glamor gnome-keyring gnutls gpm gtk iconv ipv6 jpeg lcms libnotify lzma mad mng modules mp3 mp4 mpeg multilib ncurses nls nptl ogg opengl openmp opus pam pango pcre pdf png policykit ppds qt3support readline sdl seccomp session spell ssl startup-notification svg tcpd theora threads tiff truetype udev udisks unicode upower usb v4l vorbis vpx wxwidgets x264 xattr xcb xml xv xvid zeroconf 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" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 ssse3 sse3 sse4 sse4_1 sse4_2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput synaptics wacom evdev" KERNEL="linux" L10N="en fr be" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en fr fr_FR fr_BE" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6" POSTGRES_TARGETS="postgres9_5" PYTHON_SINGLE_TARGET="python3_4" PYTHON_TARGETS="python2_7 python3_4" QEMU_SOFTMMU_TARGETS="arm aarch64 i386 x86_64" QEMU_USER_TARGETS="arm aarch64 i386 x86_64" RUBY_TARGETS="ruby22" USERLAND="GNU" VIDEO_CARDS="vesa fbdev nouveau" XFCE_PLUGINS="clock power trash" 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, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
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I'm not asking for support. I've been fed up to describe the same problem multiple times and going nowhere. I asked in fora and was told to file a bug instead, which I did. I admit I just copied/pasted the text I typed in forums. I just hoped Gentoo bug maintainers would gently forward the bug to nouveau developers. Instead I guess I'll have to create an account at nouveau.freedesktop.org/wiki/Bugs for just that bug... which I didn't want. *sighs*
