kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Jcat-l, thank you for reporting this and helping make Ubuntu better.

As per http://www.dell.com/support/home/us/en/19/product-
support/product/latitude-e6540-laptop/drivers/advanced an update to your
computer's buggy and outdated BIOS is available (A16). If you update to
this following https://help.ubuntu.com/community/BIOSUpdate does it
change anything?

For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on if there was an improvement or not.
3) If the issue is still reproducible, please mark this report Status Confirmed. Otherwise, please mark this as Invalid.

Thank you for your understanding.

** Tags added: bios-outdated-a16

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** 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/1522094

Title:
  WARNING: CPU: 0 PID: 233 at /build/linux-lts-vivid-pTjnAT/linux-lts-
  vivid-3.19.0/drivers/gpu/drm/i915/intel_crt.c:145
  hsw_crt_pre_enable+0x7f/0x90 [i915]()

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  When I connect a monitor the VGA port on the laptop - this is found in
  dmesg, and some of the kernel modules linked in become unstable [
  btrfs for instance, if it's in use].

  [    2.962400] ------------[ cut here ]------------
  [    2.962424] WARNING: CPU: 0 PID: 233 at /build/linux-lts-vivid-pTjnAT/linux-lts-vivid-3.19.0/drivers/gpu/drm/i915/intel_crt.c:145 hsw_crt_pre_enable+0x7f/0x90 [i915]()
  [    2.962425] SPLL already enabled
  [    2.962426] Modules linked in: uas usb_storage hid_generic usbhid hid i915 psmouse i2c_algo_bit e1000e drm_kms_helper ahci libahci sdhci_pci drm ptp pps_core pata_acpi wmi sdhci_acpi video sdhci
  [    2.962437] CPU: 0 PID: 233 Comm: plymouthd Not tainted 3.19.0-37-generic #42~14.04.1-Ubuntu
  [    2.962438] Hardware name: Dell Inc. Latitude E6540/0PXPYJ, BIOS A15 05/19/2015
  [    2.962439]  ffffffffc02fd7f8 ffff880220d23ab8 ffffffff817af92b 0000000000003a7a
  [    2.962440]  ffff880220d23b08 ffff880220d23af8 ffffffff81074e0a 0000000000000046
  [    2.962442]  ffff880035fb0000 ffff88003615eb60 ffff880035f8f400 ffff88003615e800
  [    2.962444] Call Trace:
  [    2.962449]  [<ffffffff817af92b>] dump_stack+0x45/0x57
  [    2.962452]  [<ffffffff81074e0a>] warn_slowpath_common+0x8a/0xc0
  [    2.962453]  [<ffffffff81074e86>] warn_slowpath_fmt+0x46/0x50
  [    2.962464]  [<ffffffffc02b601f>] hsw_crt_pre_enable+0x7f/0x90 [i915]
  [    2.962475]  [<ffffffffc02a1a7c>] haswell_crtc_enable+0x3fc/0xaf0 [i915]
  [    2.962485]  [<ffffffffc029f1a2>] __intel_set_mode+0x872/0xc60 [i915]
  [    2.962495]  [<ffffffffc02a5af2>] intel_crtc_set_config+0x9e2/0xf60 [i915]
  [    2.962506]  [<ffffffffc010382f>] drm_mode_set_config_internal+0x6f/0x110 [drm]
  [    2.962511]  [<ffffffffc019e5c8>] restore_fbdev_mode+0xc8/0xf0 [drm_kms_helper]
  [    2.962515]  [<ffffffffc01a04e9>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x80 [drm_kms_helper]
  [    2.962525]  [<ffffffffc02b31ee>] intel_fbdev_restore_mode+0x1e/0x50 [i915]
  [    2.962536]  [<ffffffffc02d787e>] i915_driver_lastclose+0xe/0x20 [i915]
  [    2.962541]  [<ffffffffc00f6c4e>] drm_lastclose+0x2e/0x130 [drm]
  [    2.962546]  [<ffffffffc00f7088>] drm_release+0x338/0x540 [drm]
  [    2.962549]  [<ffffffff811ee077>] __fput+0xe7/0x220
  [    2.962551]  [<ffffffff811ee1fe>] ____fput+0xe/0x10
  [    2.962553]  [<ffffffff81091e3c>] task_work_run+0xac/0xd0
  [    2.962556]  [<ffffffff81015007>] do_notify_resume+0x97/0xb0
  [    2.962558]  [<ffffffff817b762f>] int_signal+0x12/0x17
  [    2.962559] ---[ end trace b6b778d930eaeda7 ]---

  This is the lts-vivid kernel.  downgrading to the lts-utopic kernel fixes the issue.
  I tried the wily-lts, same issue.

  I've also tried to recent kernels in http://kernel.ubuntu.com/~kernel-
  ppa :

  linux-image-4.3.0-040300-generic_4.3.0-040300 is still broken

  linux-image-4.4.0-040400rc3-generic_4.4.0-040400rc3.201511300321   works fine!  :)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jcat       2559 F.... pulseaudio
   /dev/snd/controlC1:  jcat       2559 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=b338325d-c293-4b5b-ab0a-542a7f02236f
  InstallationDate: Installed on 2015-11-25 (8 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  MachineType: Dell Inc. Latitude E6540
  NonfreeKernelModules: fglrx
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-39-generic.efi.signed root=UUID=8c468c94-323c-4526-b3a2-e1eddacbed42 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-39.44~14.04.1-generic 3.19.8-ckt9
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-39-generic N/A
   linux-backports-modules-3.19.0-39-generic  N/A
   linux-firmware                             1.127.19
  Tags:  trusty
  Uname: Linux 3.19.0-39-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 05/19/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A15
  dmi.board.name: 0PXPYJ
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA15:bd05/19/2015:svnDellInc.:pnLatitudeE6540:pvr01:rvnDellInc.:rn0PXPYJ:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6540
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1522094/+subscriptions