Dieter Maurer: >"It may take a bit of time before I can make the tests with the current Ubuntu >version."
If the problem is reproducible in a live environment, then testing that would be fine. >"And, I fear that such tests might not be reliable: after the temporary use of the NVidia driver I could use the "nouveau" driver for some time even without the special boot parameter "nouveau.config=NvMSI=0" - only after some months, new freezes occurred." Such test is reliable, in that it provides additional data points with later versions of various related packages. This is required in order to upstream an issue for upstream developers to address. Despite this, if one notices different environment behavior with nouveau after such maneuvering, the proprietary driver may be twiddling some bits that luckily improve stability after removal. It could also be a coincedence. >"I have the feeling that the problem (now) arises non-deterministically -- likely dependent on environment factors such as temperature and/or humidity." Evidence and data are helpful, guesses/feelings/hunches aren't. One may monitor internal temperatures via https://help.ubuntu.com/community/SensorInstallHowto in order to prove a correlation. >"While freezes are now rather rare for me, I often observe that the top bars of my windows (usually black) are drawn in an irregular black/white pattern (similar to the freeze pattern) when I move the mouse pointer over the bar." This report is scoped to freezing/crashing. If you are having graphical issues without freezing/crashing that's a different problem for a new report. Feel free to file a new one scoped to that and subscribe me to it. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1649566 Title: [GeForce 7025 / nForce 630a] System freeze Status in xorg package in Ubuntu: Incomplete Bug description: Yesterday, I upgraded from Ubuntu 12.04 via 14.04 to 16.04. From 14.04 on, I was unable to graphically log in. A few seconds after the login (varying between 1 and 10 s), the screen changed to a pattern with dense white stripes on the violet/red background, and X froze (no reaction to mouse or keyboard). The latest messages in "/var/log/syslog" each time showed varying "nouveau E" problems, e.g. "unrecognized interupt", "PFIFO", or "PBUS" problems such as e.g.: "nouveau E[ PBUS][0000:00:0d.0] MMIO write of 0x01f70001 FAULT at 0x00b010" (values and addresses varying). Usually, the freeze happens when e.g. "firefox" is started (which happens in my context automatically after a graphical login). In my case, the NVidia driver could not be started (I did not investigate why). Using boot parameter "nouveau.config=NvMSI=0" made the graphical login successful again. Today, I wanted to report the bug with "ubuntu-bug". However, during the collection of the system information, the error happened again (despite the "nouveau.config" boot parameter). Syslog gives: ... Dec 13 11:12:01 localhost CRON: (root) CMD ( test -x /etc/cron.daily/popularity-contest && /etc/cron.daily/popularity-contest --crond) Dec 13 11:14:16 localhost kernel: [ 6889.138599] nouveau E[ PBUS][0000:00:0d.0] MMIO write of 0x07920001 FAULT at 0x00b020 Dec 13 11:14:16 localhost kernel: [ 6889.140532] nouveau E[ PBUS][0000:00:0d.0] MMIO write of 0x07920001 FAULT at 0x00b020 Dec 13 11:14:59 localhost dbus: [system] Activating service name='com.ubuntu.SoftwareProperties' (using servicehelper) Dec 13 11:14:59 localhost dbus: [system] Successfully activated service 'com.ubuntu.SoftwareProperties' Dec 13 11:15:01 localhost CRON: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Dec 13 11:17:01 localhost CRON: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Dec 13 11:20:01 localhost CRON: (smmsp) CMD (test -x /etc/init.d/sendmail && test -x /usr/share/sendmail/sendmail && test -x /usr/lib/sm.bin/sendmail && /usr/share/sendmail/sendmail cron-msp) Dec 13 11:22:20 localhost kernel: [ 7372.621357] nouveau E[ PBUS][0000:00:0d.0] MMIO write of 0x00000000 FAULT at 0x00b020 Dec 13 11:25:01 localhost CRON: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Dec 13 11:35:01 localhost CRON: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) Dec 13 11:38:02 localhost gnome-session: Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. Dec 13 11:39:01 localhost CRON: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime)) Dec 13 11:39:01 localhost CRON: (root) CMD ( [ -x /usr/lib/php/sessionclean ] && /usr/lib/php/sessionclean) Dec 13 11:39:46 localhost gnome-session: Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. At this point, I had to reset the computer. --- ApportVersion: 2.20.1-0ubuntu2.15 Architecture: i386 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,move,resize,snap,place,grid,vpswitch,gnomecompat,mousepoll,imgpng,session,regex,animation,unitymtgrabhandles,workarounds,wall,fade,expo,ezoom,scale,unityshell] DistUpgraded: 2016-12-12 17:25:47,166 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: xenial DistroRelease: Ubuntu 16.04 DistroVariant: ubuntu DpkgLog: ExtraDebuggingInterest: Yes GraphicsCard: NVIDIA Corporation C61 [GeForce 7025 / nForce 630a] [10de:03d6] (rev a2) (prog-if 00 [VGA controller]) Subsystem: ASRock Incorporation C61 [GeForce 7025 / nForce 630a] [1849:03d6] InstallationDate: Installed on 2013-01-21 (1838 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. Package: xorg 1:7.7+13ubuntu3 PackageArchitecture: i386 ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-112-generic root=UUID=9c03cebc-9cba-47bc-9974-5c236a34906e ro nouveau.config=NvMSI=0 ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98 Tags: xenial ubuntu Uname: Linux 4.4.0-112-generic i686 UpgradeStatus: Upgraded to xenial on 2016-12-12 (416 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/27/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.30 dmi.board.name: N68-S3 UCC dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.30:bd05/27/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnN68-S3UCC:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.libdrm2: libdrm2 2.4.83-1~16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu1~16.04.4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu1~16.04.4 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1649566/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp