After struggling with this for several months I've found what I believe is the source of this bug. I had to go back and look at Firefox 44.0, the last version to build without exhibiting the flashing. I discovered that a change between versions 44.0 and 45.0, Bug 1209812 - Add endian- neutral variants to SurfaceFormat, was the culprit.
I believe error is in the below code changes to gfx/2d/Types.h: // The following values are endian-independent synonyms. The _UINT32 suffix // indicates that the name reflects the layout when viewed as a uint32_t // value. #if MOZ_LITTLE_ENDIAN A8R8G8B8_UINT32 = B8G8R8A8, // 0xAARRGGBB X8R8G8B8_UINT32 = B8G8R8X8 // 0x00RRGGBB #elif MOZ_BIG_ENDIAN A8R8G8B8_UINT32 = A8R8G8B8, // 0xAARRGGBB X8R8G8B8_UINT32 = X8R8G8B8 // 0x00RRGGBB #else # error "bad endianness" #endif As I understand from reading the endianness values that preceed this code, the endian test should be reserved to be: #if MOZ_BIG_ENDIAN A8R8G8B8_UINT32 = B8G8R8A8, // 0xAARRGGBB X8R8G8B8_UINT32 = B8G8R8X8 // 0x00RRGGBB #elif MOZ_LITTLE_ENDIAN A8R8G8B8_UINT32 = A8R8G8B8, // 0xAARRGGBB X8R8G8B8_UINT32 = X8R8G8B8 // 0x00RRGGBB #else # error "bad endianness" #endif I've used this to patch Firefox which allows me to successfully build both Firefox 46 and 47 that do not exhibit the graphics flashing. ** Attachment added: "patch-gfx-2d-Types.h" https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1562385/+attachment/4739563/+files/patch-gfx-2d-Types.h -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1562385 Title: Crash Annotation GraphicsCriticalError: |[0][GFX1]: Unknown image format 0[GFX1]: Unknown image format 0 Crash Annotation GraphicsCriticalError: |[0][GFX1]: Unknown image format 0|[1][GFX1]: Unknown image format 0[GFX1]: Unknown image format 0 Status in firefox package in Ubuntu: Confirmed Bug description: i have continue this error as loop when i open firefox from terminal and this hit the performances ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: firefox 45.0.1+build1-0ubuntu1 Uname: Linux 4.5.0-cyrus-lb ppc64 AddonCompatCheckDisabled: False ApportVersion: 2.20-0ubuntu3 Architecture: powerpc AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: amigaone 4535 F.... pulseaudio BuildID: 20160317093517 Channel: Unavailable CurrentDesktop: MATE Date: Sat Mar 26 20:51:20 2016 Extensions: extensions.sqlite corrupt or missing ForcedLayersAccel: False IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) InstallationDate: Installed on 2016-03-05 (21 days ago) InstallationMedia: Lubuntu 16.04 LTS "Xenial Xerus" - Alpha powerpc (20160302) IpRoute: default via 192.168.1.1 dev eth0 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.102 Locales: extensions.sqlite corrupt or missing Plugins: IcedTea-Web Plugin (using IcedTea-Web 1.6.2 (1.6.2-2ubuntu1)) - /usr/lib/jvm/java-8-openjdk-powerpc/jre/lib/ppc/IcedTeaPlugin.so (icedtea-8-plugin) Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell) PrefSources: prefs.js ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash Profiles: Profile0 (Default) - LastVersion=45.0.1/20160317093517 (In use) RelatedPackageVersions: icedtea-8-plugin 1.6.2-2ubuntu1 gnome-shell 3.18.4-0ubuntu2 RfKill: RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1562385/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
