Turn on the laptop whit/whitout VGA external conected, connected and
then wait to blank screen or simple close your laptop.
I get a blank screen and the follow log:
Jun 19 07:01:03 oemunoz kernel: [ 753.076621]
[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo
underrun on pch transcoder A
Jun 19 07:01:03 oemunoz kernel: [ 753.076638]
[drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO
underrun
Jun 19 07:01:03 oemunoz kernel: [ 753.082360]
[drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo
underrun on pipe B
Jun 19 07:01:03 oemunoz kernel: [ 753.082376]
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun
My setup:
product: 20AWS0JV0A (LENOVO_MT_20AW_BU_Think_FM_ThinkPad T440p)
vendor: LENOVO
version: ThinkPad T440p
00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core
Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA
controller])
Subsystem: Lenovo ThinkPad T440p [17aa:220e]
Flags: bus master, fast devsel, latency 0, IRQ 29
Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 3000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel modules: i915
Linux oemunoz 4.4.0-79-generic #100-Ubuntu SMP Wed May 17 19:58:14 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux
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https://bugs.launchpad.net/bugs/1568865
Title:
[drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
B FIFO underrun
Status in linux package in Ubuntu:
Confirmed
Bug description:
Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
using Intel graphics (Nvidia card turned off), I get this error in
syslog when plugging in an external monitor (HDMI).
Apr 11 14:28:38 miaco kernel: [ 2616.604641]
[drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
B FIFO underrun
Meanwhile both screens flash and show corruption. Most of the time
this has caused a hang that needs a hard power off to get out of, but
occasionally removing the external monitor is enough to get going
again and so I've been able to find this message in the logs.
Note that when using Nvidia (proprietary) drivers and Unity DE I do
not have this problem; so it seems to be related to the intel drivers,
or possibly Gnome Shell's use of them.
Happy to help if I can (would like to be able to use external
monitors!)
Rich
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-18-generic 4.4.0-18.34
ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
Uname: Linux 4.4.0-18-generic x86_64
ApportVersion: 2.20.1-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: rich 1943 F.... pulseaudio
Date: Mon Apr 11 14:31:26 2016
InstallationDate: Installed on 2016-03-21 (21 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp.
Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp.
Bus 001 Device 004: ID 0c45:6713 Microdia
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. XPS 15 9550
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
PulseList:
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.
RelatedPackageVersions:
linux-restricted-modules-4.4.0-18-generic N/A
linux-backports-modules-4.4.0-18-generic N/A
linux-firmware 1.157
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/25/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 01.01.19
dmi.board.name: 0N7TVV
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: XPS 15 9550
dmi.sys.vendor: Dell Inc.
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