Since the last updates, the UI doesn't crash anymore. However, I still have the following errors in dmesg:
[ 5.564714] brcmf_c_preinit_dcmds: Firmware version = wl0: Nov 10 2015 06:38:10 version 7.35.177.61 (r598657) FWID 01-ea662a8c [ 5.603562] brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30) ... [ 17.702866] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready [ 17.804985] brcmf_inetaddr_changed: fail to get arp ip table err:-23 [ 348.522923] nouveau 0000:01:00.0: DRM: resuming kernel object tree... [ 348.662487] nouveau 0000:01:00.0: priv: HUB0: 10ecc0 ffffffff (1b40822c) I don't know if it's important. My system feels stable now, so I won't mind if you closed the bug right now. But given I still have those errors, maybe you want to keep it open. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1658632 Title: [drm:intel_pipe_update_end [i915_bpo]] *ERROR* Atomic update failure on pipe C Status in linux package in Ubuntu: Triaged Status in linux source package in Xenial: Triaged Bug description: Dell XPS 15, Ubuntu 16.04 (Ubuntu 4.4.0-59.80-generic 4.4.35), freshly updated. Running BTRFS and nouveau. The UI crashes, and put me back to the login screen after 30 seconds. This happens when I start softwares based on webkit (stremio, opera, chrome, etc). But generally only the first time. After login back and starting the program again, it works without crashing. The full dmesg error message is: [ 113.711453] [drm:intel_pipe_update_end [i915_bpo]] *ERROR* Atomic update failure on pipe C (start=5158 end=5159) time 130 us, min 1073, max 1079, scanline start 1071, end 1080 Repeated several times. I also get a: [ 762.958586] nouveau 0000:01:00.0: priv: HUB0: 10ecc0 ffffffff (1d40822c) And a: [13925.500344] brcmf_cfg80211_reg_notifier: not a ISO3166 code but don't know if it's relevant. --- ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: user 2730 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=4b156e2d-c1e9-435f-9a56-825b0c577742 InstallationDate: Installed on 2016-09-20 (206 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Dell Inc. XPS 15 9550 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-46-generic root=UUID=1e6d33f9-ac0e-48bb-b69e-e48ae79db74c ro rootflags=subvol=@ quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.8.0-46.49~16.04.1-generic 4.8.17 RelatedPackageVersions: linux-restricted-modules-4.8.0-46-generic N/A linux-backports-modules-4.8.0-46-generic N/A linux-firmware 1.157.8 Tags: xenial xenial Uname: Linux 4.8.0-46-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo www-data _MarkForUpload: True dmi.bios.date: 02/17/2017 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.21 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.21:bd02/17/2017:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1658632/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp