kernel-packages team mailing list archive
Mailing list archive
[Bug 1575467] Re: [Dell Inspiron 3451] WARNING: CPU: 1 PID: 1297 at /build/linux-lts-utopic-vy2yyy/linux-lts-utopic-3.16.0/drivers/gpu/drm/i915/intel_display.c:1743 vlv_wait_port_ready+0x126/0x170 [i915]()
Confirming problem exactly as described in original description. Freezes are frequently triggered by video playback in browsers, but also in normal browser use. Chrome and other browsers using the Blink rendering engine (like Opera) trigger freezes much more often than firefox. But regularly I can trigger a freeze even in Firefox by showing a video on youtube in fullscreen mode for in than 15 minutes.
We provide Ubuntu for 700+ users at a school and cannot switch from 14.04 to 16.04 while this problem persists. It was already present in the last updates to 14.04 we made around march 2016, if this helps.
Appreciating your effort on solving this bug!
** Attachment added: "Hardware configuration as of lshw"
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to the bug report.
[Dell Inspiron 3451] WARNING: CPU: 1 PID: 1297 at /build/linux-lts-
Status in linux package in Ubuntu:
After upgrading from stock Ubuntu 14.04 to 16.04 my laptop
consistently freezes up and is unresponsive to keyboard or mouse. The
only way is to do a hard shutdown. I'm usually in a browser when this
happens, and often watching a video or two. It seems to happen more
often in Google Chrome than Firefox, but it happens with both. It has
happened at least once with no videos loaded. I haven’t observed it
freeze / hang when I’m not in a browser, but that's mainly what i use
my laptop for, so that's where most of my time is spent.
USER PID ACCESS COMMAND
/dev/snd/controlC0: andrew 1949 F.... pulseaudio
DistroRelease: Ubuntu 16.04
InstallationDate: Installed on 2015-08-08 (263 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: Dell Inc. Inspiron 3451
Package: linux (not installed)
PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=d01f07be-c906-4024-8eef-a58ba3935298 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
Uname: Linux 4.4.0-21-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-04-22 (4 days ago)
dmi.bios.vendor: Dell Inc.
dmi.board.vendor: Dell Inc.
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.product.name: Inspiron 3451
dmi.sys.vendor: Dell Inc.
To manage notifications about this bug go to: