After upgrading to x11-drivers/xf86-video-intel-2.21.10 some jpg in firefox are displayed as totally black. This might be an upstream problem. reverting to x11-drivers/xf86-video-intel-2.21.9 solve the problem. was using x11-drivers/xf86-video-intel-2.21.10 [ USE="dri sna udev xvmc -glamor -uxa" 0 kB www-client/firefox-21.0 USE="alsa bindist dbus jit libnotify minimal pulseaudio startup-notification wifi -custom-cflags -custom-optimization -debug -gstreamer (-pgo) (-selinux) -system-cairo -system-jpeg -system-sqlite" LINGUAS="en_GB fr -af -ak -ar -as -ast -be -bg -bn_BD -bn_IN -br -bs -ca -cs -csb -cy -da -de -el -en_ZA -eo -es_AR -es_CL -es_ES -es_MX -et -eu -fa -fi -fy_NL -ga_IE -gd -gl -gu_IN -he -hi_IN -hr -hu -hy_AM -id -is -it -ja -kk -km -kn -ko -ku -lg -lt -lv -mai -mk -ml -mr -nb_NO -nl -nn_NO -nso -or -pa_IN -pl -pt_BR -pt_PT -rm -ro -ru -si -sk -sl -son -sq -sr -sv_SE -ta -ta_LK -te -th -tr -uk -vi -zh_CN -zh_TW -zu" 0 kB
Created attachment 351868 [details] emerge--info.
seems to be with sna enabled. looks like I am not the only one https://bugs.archlinux.org/task/35896 https://bugs.freedesktop.org/show_bug.cgi?id=66059
looks like there is a patch here from upstream https://bugs.freedesktop.org/show_bug.cgi?id=66059#c20
I have the same problem with xf86-video-intel-2.21.10 (sna enabled) and firefox 17.0.6.
Fixed in 2.21.10-r1