User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0 Build ID: 20150624141335 Steps to reproduce: Windows 7 Home Premium x64, internal video at Intel(R) G41 Express Chipset. After migrade ESR to main repository (https://www.mozilla.org/en-US/thunderbird/organizations/all-esr.html) and update to version 38, pc full freezes when try to show popup message a new mail. Operation system not responding. I tried to change video driver - from motherboard site, from intel site, from windows update, the effect is the same. If remove driver and install standart vga driver, thunderbird work perfectly, success show popup message. Presumably the problem is hardware acceleration. It is interesting that in firefox ESR 31.8.0 this does not happen in spite of the included hardware acceleration(show message in telegram nice work). Another web browser application(chrome, ie) work perfectly if hardware accelerated is enabled. Similar problem in https://support.mozilla.org/ru/questions/1067713 and https://forum.mozilla-russia.org/viewtopic.php?pid=690373 Please check code for hardware acceleration after merge esr release to main. Actual results: PC full freezes. Operation system not responding. Expected results: Successfully show popup message :)

Please post the graphics section of Help | Troubleshooting, in text format.

my language is russian, next info from firefox ESR 31.8.0 Графика Аппаратно ускоренные окна 1/1 Direct3D 10 Версия драйвера 8.15.10.2302 Визуализатор WebGL Google Inc. -- ANGLE (Intel(R) G41 Express Chipset Direct3D9Ex vs_3_0 ps_3_0) Дата разработки драйвера 2-11-2011 Драйвера видеокарты igdumd64 igd10umd64 igdumdx32 igd10umd32 Код производителя 0x8086 Код устройства 0x2e32 Объём видеопамяти Unknown Описание видеокарты Intel(R) G41 Express Chipset Параметры ClearType Gamma: 1800 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 400 Direct2D включён true DirectWrite включён true (6.2.9200.17292) GPU #2 активен false windowLayerManagerRemote false AzureCanvasBackend direct2d AzureContentBackend direct2d AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

Your current driver is dated 2011. Is there a newer driver for you at https://downloadcenter.intel.com/product/81517/Intel-G41-Express-Chipset ?

(In reply to Wayne Mery (:wsmwk, use Needinfo for questions) from comment #3) > Your current driver is dated 2011. Is there a newer driver for you at > https://downloadcenter.intel.com/product/81517/Intel-G41-Express-Chipset ? please read my first message again....

Specualy for opensource... ****... "we have to prove that you're not an idiot"... I install driver from intel site https://downloadcenter.intel.com/download/22166/Intel-Graphics-Media-Accelerator-Driver-Windows-7-64-Windows-Vista-64-zip- and full remove thunderbird directory in appdata to clear install. I intall latest thunderbird, and setup my account to check new mail 1 minutes. I send test mail to my account. I heard sound of new mail and attempt show popup message. MY PC IS FREEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEZZZZZZZZZZZZZZEEEEEEEEEEEEEEEEEESSSSSSSS

Аппаратно ускоренные окна 1/1 Direct3D 10 Версия драйвера 8.15.10.2869 Визуализатор WebGL Google Inc. -- ANGLE (Intel(R) G41 Express Chipset Direct3D9Ex vs_3_0 ps_3_0) Дата разработки драйвера 10-4-2012 Драйвера видеокарты igdumd64 igd10umd64 igdumdx32 igd10umd32 Код производителя 0x8086 Код устройства 0x2e32 Объём видеопамяти Unknown Описание видеокарты Intel(R) G41 Express Chipset Параметры ClearType Gamma: 1800 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 400 Direct2D включён true DirectWrite включён true (6.2.9200.17292) GPU #2 активен false windowLayerManagerRemote false AzureCanvasBackend direct2d AzureContentBackend direct2d AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

I think it's a dupe of bug 1186755, for TB. A regression range would be nice. https://bugzilla.mozilla.org/show_bug.cgi?id=1186755#c11

(In reply to Loic from comment #7) > I think it's a dupe of bug 1186755, for TB. > > A regression range would be nice. > https://bugzilla.mozilla.org/show_bug.cgi?id=1186755#c11 I "Download and install python 2.7 from ActiveState. It will include pip and set python in your PATH." i run "pip install -U mozregression" and ... debug message... "Downloading/unpacking mozregression Downloading mozregression-0.40.tar.gz Running setup.py (path:c:\users\73b5~1\appdata\local\temp\pip_build_╧юы№чютрЄх ы№\mozregression\setup.py) egg_info for package mozregression Cleaning up... Exception: Traceback (most recent call last): File "C:\Python27\lib\site-packages\pip\basecommand.py", line 122, in main status = self.run(options, args) File "C:\Python27\lib\site-packages\pip\commands\install.py", line 278, in run requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundl e=self.bundle) File "C:\Python27\lib\site-packages\pip\req.py", line 1234, in prepare_files req_to_install.assert_source_matches_version() File "C:\Python27\lib\site-packages\pip\req.py", line 464, in assert_source_ma tches_version % (display_path(self.source_dir), version, self)) UnicodeDecodeError: 'ascii' codec can't decode byte 0xcf in position 55: ordinal not in range(128) Traceback (most recent call last): File "C:\Python27\Scripts\pip-script.py", line 9, in <module> load_entry_point('pip==1.5.6', 'console_scripts', 'pip')() File "C:\Python27\lib\site-packages\pip\__init__.py", line 185, in main return command.main(cmd_args) File "C:\Python27\lib\site-packages\pip\basecommand.py", line 161, in main text = '\n'.join(complete_log) UnicodeDecodeError: 'ascii' codec can't decode byte 0xcf in position 70: ordinal not in range(128) C:\Python27\Scripts>" nice... need another quest to make debugging , no sorry... i disabled HA, it's easy....

Hahahaha.... very nice... if install python 3.4, error with "version too high" C:\Python34\Scripts>pip install -U mozregression Downloading/unpacking mozregression Downloading mozregression-0.40.tar.gz Running setup.py (path:C:\Users\73B5~1\AppData\Local\Temp\pip_build_Пользовате ль\mozregression\setup.py) egg_info for package mozregression mozregression currently require python >=2.7 and <3. Complete output from command python setup.py egg_info: mozregression currently require python >=2.7 and <3. ---------------------------------------- Cleaning up... Command python setup.py egg_info failed with error code 1 in C:\Users\73B5~1\App Data\Local\Temp\pip_build_Пользователь\mozregression Storing debug log for failure in C:\Users\Пользователь\pip\pip.log

suslayer, Do you see the problem using version 45? And if you do, is it better using beta version from http://www.mozilla.org/en-US/thunderbird/channel/ ? (graphics fixed many bugs since version 45, and several people are reporting good results with beta)

Omg... 1 year... Opensource is fast... My current branch is 50 and pc was replaced. No promblem.

By the way, Intel® G41 Express Chipset is a dead chipset, last drivers are from 11/16/2012.