Public bug reported:
Hello there!
I have an HP 840 G5, with an external docking station (HP USB-C Dock G4). All
the input and output devices are connected to this docking station"
- display on Displayport (x2)
- ethernet
- keyboard
- mouse
After I turn on the machine in the morning (probably from S3 sleep), it just
blinks the displays for a few moments, than it turns to black for seconds and
this is an endless loop. If I reconnect the docking station I can get back one
of the displays to life, but the other one remain in sleep state.
In the meanwhile after each of these problems, the intel_pstate driver seems to
fail, all the processors cores are clocked to 3.6GHz.
If I reboot the machine, both the screens are usable again and the intel_pstate
driver is able to change the freqency.
Kernel version 5.0.0-23 was not able to lower the frequency at all, I had to
use the ondemand scheduler.
I found these lines for about 5 days in a previous dmesg log.
[10443.450243] [drm:intel_mst_enable_dp [i915]] *ERROR* Timed out waiting for
ACT sent
[10443.703810] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[10444.257321] [drm:intel_mst_enable_dp [i915]] *ERROR* Timed out waiting for
ACT sent
If I can help in any other way, please let me know!
Regards
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu7.1
ProcVersionSignature: Ubuntu 5.0.0-31.33~18.04.1-generic 5.0.21
Uname: Linux 5.0.0-31-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: XFCE
Date: Tue Oct 15 06:29:14 2019
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Hewlett-Packard Company UHD Graphics 620 [103c:83b2]
InstallationDate: Installed on 2019-10-08 (6 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
MachineType: HP HP EliteBook 840 G5
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-31-generic
root=/dev/mapper/elxnoname--vg-root ro audit=0 noquiet nosplash
sysrq_always_enabled
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/17/2019
dmi.bios.vendor: HP
dmi.bios.version: Q78 Ver. 01.07.00
dmi.board.name: 83B2
dmi.board.vendor: HP
dmi.board.version: KBC Version 04.59.00
dmi.chassis.asset.tag: 5CG8322Y91
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrQ78Ver.01.07.00:bd04/17/2019:svnHP:pnHPEliteBook840G5:pvr:rvnHP:rn83B2:rvrKBCVersion04.59.00:cvnHP:ct10:cvr:
dmi.product.family: 103C_5336AN HP EliteBook
dmi.product.name: HP EliteBook 840 G5
dmi.product.sku: 3WQ22EC#ABB
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.97-1ubuntu1~18.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 19.0.8-0ubuntu0~18.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx 19.0.8-0ubuntu0~18.04.2
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic false-gpu-hang freeze ubuntu
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https://bugs.launchpad.net/bugs/1848123
Title:
Xorg freeze
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