Joseph, This has been happening since at least last Fall. I entered a question, https://answers.launchpad.net/ubuntu/+question/403642, but got no responses.
That was after I upgraded to 16.04 (from 12.04) sometime last summer, but I don't remember exactly. I also don't remember whether this problem occurred immediately after the upgrade or at some other point in time. That was the same time I added an 955Q tuner (required the 4.* kernel) to the 950Q. I will give the latest upstream kernel a try later today/tomorrow and update the bug report. Thanks, Art On 3/29/2017 10:38 AM, Joseph Salisbury wrote: > Did this issue start happening after an update/upgrade? Was there a > prior kernel version where you were not having this particular problem? > > Would it be possible for you to test the latest upstream kernel? Refer > to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest > v4.11 kernel[0]. > > If this bug is fixed in the mainline kernel, please add the following > tag 'kernel-fixed-upstream'. > > If the mainline kernel does not fix this bug, please add the tag: > 'kernel-bug-exists-upstream'. > > Once testing of the upstream kernel is complete, please mark this bug as > "Confirmed". > > > Thanks in advance. > > [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc4 > > ** Changed in: linux (Ubuntu) > Importance: Undecided => Medium > > ** Changed in: linux (Ubuntu) > Status: Confirmed => Incomplete > -- 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/1676945 Title: xc5000 driver/firmware intermittent failure Status in linux package in Ubuntu: Incomplete Bug description: xc5000 driver fails to load intermittently in up-to-date 16.04 On reboot, sometimes driver loads, sometimes it does not. Timing seems to be the issue I am attaching dmesg output from a successful and an unsuccessful boot. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-70-generic 4.4.0-70.91 ProcVersionSignature: Ubuntu 4.4.0-70.91-generic 4.4.49 Uname: Linux 4.4.0-70-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: a_herzog 1372 F.... pulseaudio /dev/snd/controlC2: a_herzog 1372 F.... pulseaudio /dev/snd/controlC1: a_herzog 1372 F.... pulseaudio CurrentDesktop: XFCE Date: Tue Mar 28 12:16:52 2017 HibernationDevice: RESUME=UUID=4b66b4c4-fbb2-4948-b3d5-91af7705f20d InstallationDate: Installed on 2016-06-14 (286 days ago) InstallationMedia: Mythbuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-70-generic root=UUID=ec52f45a-20fb-4d15-aee5-5fef0c006149 ro quiet splash RelatedPackageVersions: linux-restricted-modules-4.4.0-70-generic N/A linux-backports-modules-4.4.0-70-generic N/A linux-firmware 1.157.8 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/12/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 080015 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: To be filled by O.E.M. dmi.board.vendor: To be filled by O.E.M. dmi.board.version: To be filled by O.E.M. 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.:bvr080015:bd10/12/2009:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnTobefilledbyO.E.M.:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.: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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1676945/+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