[trusty] [drm] HPD interrupt storm detected on connector DP-1: switching from hotplug detection to polling

[Chris Cheney]

I have a haswell motherboard with 3 1080p monitors connected, 2 directly via HDMI and a 3rd HDMI connected to an active displayport dongle. The monitor on the displayport connection had been working fairly reliably until I decided to finally upgrade my bios to fix some other issues (big mistake, since I late found out its nearly impossible to downgrade). Since I upgraded the monitor nearly never works, I did get it to show display a few times but I'm not sure how that happened. At the moment while researching information to add to this post it actually started working for the moment. When I run xrandr it causes the screens to blink rapidly for around 30sec-1min. Most of the time the system is unresponsive while the monitor is plugged in. It appears to occasionally cause the entire desktop to stop responding until the mate-session is killed.

In dmesg I see instances of:

[ 10.053292] [drm] HPD interrupt storm detected on connector DP-1: switching from hotplug detection to polling
[ 240.125029] [drm] HPD interrupt storm detected on connector DP-1: switching from hotplug detection to polling

Also fwiw I get different errors, and a kernel backtrace, but still no display on current drm-intel-nightly from here:

http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/

And of course it all still works fine under Windows 8.1.

Searching google I see other instances of people with the same problem on the i915 driver on other systems like ThinkPad, etc.

eg:

https://bugzilla.redhat.com/show_bug.cgi?id=1062571

http://comments.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/23611

And a few possibly unrelated things in fdo bugzilla

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Sat Aug 23 01:14:48 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: Gigabyte Technology Co., Ltd Device [1458:d000]
InstallationDate: Installed on 2014-03-16 (160 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140315)
MachineType: Gigabyte Technology Co., Ltd. Z87X-UD5H
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic.efi.signed root=UUID=19efb927-173d-42b5-bb48-163ee5cb72d8 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/18/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F9
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z87X-UD5H-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF9:bd03/18/2014:svnGigabyteTechnologyCo.,Ltd.:pnZ87X-UD5H:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ87X-UD5H-CF:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: Z87X-UD5H
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sat Aug 23 01:11:35 2014
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Video Bus KEYBOARD, id 7
 input Power Button KEYBOARD, id 8
 input Logitech Unifying Device. Wireless PID:101b MOUSE, id 9
 input Logitech Unifying Device. Wireless PID:2008 KEYBOARD, id 10
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 22746
 vendor GSM
xserver.version: 2:1.15.1-0ubuntu2

[Chris Cheney (ccheney)]

Still happens on linux-image-3.13.0-35-generic 3.13.0-35.62

Attached updated dmesg output

[Chris Cheney (ccheney)]

I forgot to mention in #2 that the reason I tested and uploaded a new dmesg was due to multiple entries in the 3.13.0-35.62 Ubuntu changelog relating to i915 dp support. The changes didn't appear to fix my issue though.

[Chris Cheney (ccheney)]

So I dug around in fdo intel BZ area and found that adding the following to the kernel may produce better logs:

"drm.debug=0xe log_buf_len=4M"

I have attached the resulting log. It looks a lot like the other bugs for ThinkPad that have been around for a long time now.

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1263681
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1314213

[merinodanilo (merinodanilo)]

Hi,
I dont if its related or not. But I have a Dell Inspiron 14R that was working great with his HDMI port for another monitor but it stop working I dont know if it was an update of ubuntu or any other configuration.
in dmesg I get this error:

[14531.399160] [drm] HPD interrupt storm detected on connector HDMI-A-1: switching from hotplug detection to polling

I also did a "dmesg | grep drm" and found this:

[ 1.015753] [drm] Initialized drm 1.1.0 20060810
[ 1.039022] [drm] hdmi device not found 2 0 1
[ 2.398709] [drm] Initialized nouveau 1.1.2 20120801 for 0000:02:00.0 on minor 0
[ 2.399884] [drm] Memory usable by graphics device = 2048M
[ 2.399890] fb: conflicting fb hw usage inteldrmfb vs EFI VGA - removing generic driver
[ 2.450388] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 2.450389] [drm] Driver supports precise vblank timestamp query.
[ 2.496242] fbcon: inteldrmfb (fb0) is primary device
[ 3.368304] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 3.371959] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 1
[ 3.826317] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
[11943.335954] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5
[14531.399160] [drm] HPD interrupt storm detected on connector HDMI-A-1: switching from hotplug detection to polling

Let me know what information should i upload to get more information.

Regards

[penalvch (penalvch)]

Chris Cheney, any change updating to the Vivid enablement stack as outlined in https://wiki.ubuntu.com/Kernel/LTSEnablementStack ?

[Launchpad Janitor (janitor)]

[Expired for xserver-xorg-video-intel (Ubuntu) because there has been no activity for 60 days.]

[Scott Stensland (scottstensland)]

I'm on Ubuntu 17.10 ... laptop has external monitor using HDMI cable and see this message I've never noticed before

dmesg
...

[drm] HPD interrupt storm detected on connector HDMI-A-2: switching from hotplug detection to polling

details :

uname -m && uname -r && cat /etc/*release
x86_64
4.11.0-13-generic
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=17.10
DISTRIB_CODENAME=artful
DISTRIB_DESCRIPTION="Ubuntu Artful Aardvark (development branch)"
NAME="Ubuntu"
VERSION="17.10 (Artful Aardvark)"
ID=ubuntu
ID_LIKE=debian