[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
*** This bug is a duplicate of bug 1833169 *** https://bugs.launchpad.net/bugs/1833169 ** Tags added: cscc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
*** This bug is a duplicate of bug 1833169 *** https://bugs.launchpad.net/bugs/1833169 ** This bug has been marked a duplicate of bug 1833169 intel_max_cstate is needed with baytrail to aviod hangups -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
Hi Christopher, Why did you ask to file a new bug to be made regarding to kernel? I have reported a similar bug and it seems that at least one of the issues is quite throughly pinned down to that one that can be worked around with the cstate=1 or 2 for some others. Bay Trail and some successor platforms are affected. Wouldn't we prefer to keep things centralised? Does Canonical have any contacts with intel to spearpoint this horrible bug? I have seen thousands of users complaining and those are just the ones that do report. So this is very likely to be related to: https://bugzilla.kernel.org/show_bug.cgi?id=109051 The bisect of the kernel commit might to be : https://bugs.freedesktop.org/show_bug.cgi?id=88012#c23 Somebody at least pitched it to intel and I replied: https://communities.intel.com/thread/60984 Please do not ask many people to bisect kernels if it might already be done, it's very daunting and there is no point for the people affected by the bug, right? Current work arounds are running a pre-3.17 kernel and use cstate=1 (this works for my Yoga 2 11 but affects battery life quite a lot): http://askubuntu.com/questions/749349/how-to-set-intel-idle-max-cstate-1 or for some cstate=2. For anyone looking for more workarounds, checkout the bugzilla.kernel.org bug, there are some more options. And PLEASE, ANYONE having contacts with intel, alert them! I am not sure if they are aware of this issue and I can't imagine they are not, but it would certainly help to try and put the pressure up. Thanks, hope this helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
Probably I have related issue (also i915) - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1490647?comments=all It's very very sad. :( -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
I've been following these freeze issues since kernel 4.2. cstate is no longer as effective since 4.6-rc7+ and 4.5.4+. The known relevant commits are (from bugzilla #109051): Freezing started after 3.16.7 with commit 31685c258e0b0ad6aa486c5ec001382cf8a64212 freezing worsened again between 4.1 and 4.2 with commit 8fb55197e64d5988ec57b54e973daeea72c3f2ff Reverting these commits in later kernels does not solve the problem. But for some users, it extends run time before the next freeze, sometimes substantially. intel_idle.max_cstate={0,1} has helped the most users the most, but it is a just a bandaid, not always effective. The most recent kernels have rendered the ..cstate argument ineffective. Other improvements in the kernel have reduced my freeze rate from < 30 minutes to about 10 hours. At those rates, it could take a month to bisect. Freezing only seems to occur on Intel processors (atom and later). The freeze rates vary widely from minutes to weeks. It has dependencies on the particular Intel processor & revision, the hardware platform and the kernel version. Linux distro does not seem to matter much. I have experienced freezes with Ubuntu, Mint, Manjaro, and Android_x86 on multiple platforms (Asus T100CHI & 2 Dell laptops) For me, cstate worked to prevent freezes until very recent kernels. As an intermittent problem, most freeze reports have been dismissed with "It's not in my arena". I believe this a cluster of problems requiring concurrent fixes. I'm not sure what Ubuntu can do to solve what seems to be obvious upstream kernel problems. Maybe Canonical can exert some influence on kernel.org to work on these freezes rather than breaking features that work while they push the bleeding edge outward. Many thousands of systems are affected, some of which belong to IT professions who influence equipment purchase and configuration for large corporations. An 18 month old fatal bug is a PR disaster waiting to happen. By fatal I mean that the freeze can irreparably corrupt an installed system (and I've had to re-install twice so far.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
#21 comment was no correct I have used intel_idle.max_cstate=2 Right now it`s 1 day > without ant freezes -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
Yuriy, if the WORKAROUND doesn't work for you, then this report has nothing to do with your problem. Hence, it will help immensely if you filed a new report with the Ubuntu repository kernel (not mainline/upstream) via a terminal: ubuntu-bug linux Please feel free to subscribe me to it. For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
I want to add that intel_idle.max_cstate=1 didn't help me -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
I have the same problem can't work on system -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
Well, I can't change kernel, as I'm using chromeos chroot. But I don't know if its a kernel issue or a xorg-video-intel one. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: linux (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 14.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
I have same problem. ** Changed in: linux (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 14.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
** This bug is no longer a duplicate of bug 1453298 8086:0f31 Xubuntu freeze once a day -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
*** This bug is a duplicate of bug 1453298 *** https://bugs.launchpad.net/bugs/1453298 ** This bug has been marked a duplicate of bug 1453298 8086:0f31 Xubuntu freeze once a day -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
Chris Rainey, to advise, given this is Lauchpad (downstream reporting system) it's impossible to mark it a duplicate of an freedesktop.org (upstream reporting system) report, or any other reporting system. Also, this is not considered being tracked at bugzilla, as this hasn't been confirmed to be related. Despite that, this report (downstream) is still pending https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/comments/12 . Given your belief there is a commonality to an upstream report, it would help to provide evidence of it by confirming the regression commit noted in the upstream report is indeed the same for your hardware. ** Changed in: linux (Ubuntu) Importance: High => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
** Description changed: - Behavior: - Ever since I first installed 15.04 back in April/May on my new DELL - Inspiron 3646: - - Handle 0x0001, DMI type 1, 27 bytes - System Information - Manufacturer: Dell Inc. - Product Name: Inspiron 3646 - - I have experienced frequent(daily/every-other-day)complete + Inspiron 3646 I have experienced frequent(daily/every-other-day)complete lockups(cannot even switch to console(Alt-F1,F2,etc.). I have determined that the issue is related to the 'i915' driver in - relation to my GPU: + relation to my GPU. - 00:02.0 VGA compatible controller: Intel Corporation Atom Processor - Z36xxx/Z37xxx Series Graphics & Display (rev 0e) + I'm currently using intel-linux-graphics- + installer_1.2.0-0intel1_amd64.deb from https://01.org/linuxgraphics with + similar results (maybe a little better than the stock i915 stack in + 15.04). - on SoC: - - Handle 0x0004, DMI type 4, 42 bytes - Processor Information - Socket Designation: CPU 1 - Type: Central Processor - Family: Atom - Manufacturer: Intel(R) Corporation - Version: Intel(R) Pentium(R) CPU J2900 @ 2.41GHz - + WORKAROUND: Use kernel boot parameter: + intel_idle.max_cstate=1 I have gained _significant_ improvements in reliability / stability by - using various flags / parameters in the i915 module: + using parameters in the i915 module: /etc/modprobe.d/i915.conf: - options i915 semaphores=1 and / or /etc/default/grub: - GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_pstate=disable" and / or - /usr/share/X11/xorg.conf.d/20-intel.conf: Section "Device" Identifier "Intel Graphics" Driver "intel" Option "TearFree" "1" EndSection and / or - Disable "Intel Virtualization Technologies" in the BIOS. - - chris@CKR-DKM:~$ lsb_release -rd - Description:Ubuntu 15.04 - Release:15.04 - - chris@CKR-DKM:~$ apt-cache policy xorg - xorg: - Installed: (none) - Candidate: 1:7.7+7ubuntu4 - Version table: - 1:7.7+7ubuntu4 0 - 500 http://us.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages - - - * - - I'm currently using: intel-linux-graphics- - installer_1.2.0-0intel1_amd64.deb - - from: https://01.org/linuxgraphics - - with similar results(maybe a little better than the stock i915 stack in - 15.04). - - - * - ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xorg (not installed) ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6 Uname: Linux 3.19.0-30-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.5 Architecture: amd64 CompositorRunning: None Date: Wed Oct 7 09:32:47 2015 DistUpgraded: Fresh install DistroCodename: vivid DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 0e) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:068d] InstallationDate: Installed on 2015-09-17 (19 days ago) InstallationMedia: Ubuntu-Server 15.04 "Vivid Vervet" - Release amd64 (20150422) LightdmGreeterLog: ** (lightdm-gtk-greeter:1005): WARNING **: [PIDs] Failed to execute command: upstart ** (lightdm-gtk-greeter:1005): WARNING **: Failed to load user image: Failed to open file '/home/chris/.face': No such file or directory MachineType: Dell Inc. Inspiron 3646 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic.efi.signed root=UUID=ef22be35-6f79-4356-be42-2689d1de0378 ro quiet SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/17/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0V6D8J dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A09 dmi.modalias: dmi:bvnDellInc.:bvrA09:bd08/17/2015:svnDellInc.:pnInspiron3646:pvr:rvnDellInc.:rn0V6D8J:rvrA00:cvnDellInc.:ct3:cvrA09: dmi.product.name: Inspiron 3646 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.9-2ubuntu1~vivid2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.9-2ubuntu1~vivid2 version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
* Now tracking this bug here: https://bugzilla.kernel.org/show_bug.cgi?id=109051 * ** Bug watch added: Linux Kernel Bug Tracker #109051 http://bugzilla.kernel.org/show_bug.cgi?id=109051 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
Confirming that "intel_idle.max_cstate=1" has solved my complete freeze issues on Bay Trail running Linux 4.1.13(Slackware64-current(pre-4.2) formerly running Ubuntu 15.04/15.10 with stock kernels). Thanx for all the hard-work and long-efforts to see this through! *** PLEASE CONSIDER MARKING THIS AS A DUPLICATE OF: https://bugs.freedesktop.org/show_bug.cgi?id=88012 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
Chris Rainey, the next step is to fully commit bisect from kernel 3.16 to 3.19 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ? Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags added: needs-bisect regression-release ** Changed in: linux (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
It looks like my issue is a combination of i915 and intel_pstates. I'm following the thread at this bug: https://bugs.freedesktop.org/show_bug.cgi?id=88012 After switching my DELL Inspiron 3646 to the 3.16 kernel, I've had little to no trouble(even stressing the system using: glmark2 --run-forever). I got my 3.16 kernel here: http://kernel.ubuntu.com/~kernel- ppa/mainline/v3.16.7-ckt18-utopic/ Hope this helps !! ** Bug watch added: freedesktop.org Bugzilla #88012 https://bugs.freedesktop.org/show_bug.cgi?id=88012 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1503731] Re: 8086:0f31 Ubuntu 15.04-15.10 freezes totally
** https://bugs.freedesktop.org/show_bug.cgi?id=92464 ** On Tue, 13 Oct 2015, Chris Rainey wrote: > [1.] One line summary of the problem: 8086:0f31_freezes_totally > > [2.] Full description of the problem/report: Total lockup(cannot even > switch to console via Alt-F1, F2, etc.). Bug is most easily > reproducible via Chromium browser when opening multiple > background-tabs(middle-button(wheel) mouse-clicks) and when using > ALT-TAB to switch between browser and Xterms, etc. Very difficult to > pin due to randomness(i.e. system may run for 30-seconds, 30-minutes > or 30-hours before freeze). However -- it rarely runs stable for more > that 24-48/hrs without a lockup. Please file a bug at [1] running drm-intel-nightly and attach dmesg from boot with drm.debug=14 module parameter set. BR, Jani. [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel -- Jani Nikula, Intel Open Source Technology Center ** Bug watch added: freedesktop.org Bugzilla #92464 https://bugs.freedesktop.org/show_bug.cgi?id=92464 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503731 Title: 8086:0f31 Ubuntu 15.04-15.10 freezes totally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs