Displayport MTS fujitsu p-line p27

Hello everyone,

I'm a (almost) total linux newbie and just wanted to give it a go for my main desktop system. I installed ZORIN OS on a secondary SSD and use it in dual boot with windows right now, if that matters.

I have my first display (FUJITSU P27-9 TS QHD) connected to the back of my motherboard (GIGABYTE AORUS B550-M PRO / Ryzen 5 Pro 4650G) via DisplayPort. Daisy-Chained to my main display (via DisplayPort Out and an DisplayPort to HDMI converter) is my secondary monitor (generic SAMSUNG).

While installing ZORIN OS (still booted from the USB drive) both monitors were recognized. Since the fist reboot the secondary monitor doesn't get recognized anymore.

I don't have the same problem using windows 10, but I noticed similary behavior using a windows notebook (connected vis USB-C to the first monitor), which was always fiexed by replugging the secondary monitor. This didn't help using ZORIN OS.

Here are my outputs from uname -a
Linux MARKUS-ZENTRALE 5.15.0-89-generic #99~20.04.1-Ubuntu SMP Thu Nov 2 15:16:47 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
and sudo lshw -C video
*-display
Beschreibung: VGA compatible controller
Produkt: Renoir
Hersteller: Advanced Micro Devices, Inc. [AMD/ATI]
Physische ID: 0
Bus-Informationen: pci@0000:05:00.0
Version: d9
Breite: 64 bits
Takt: 33MHz
Fähigkeiten: pm pciexpress msi msix vga_controller bus_master cap_list rom
Konfiguration: driver=amdgpu latency=0
Ressourcen: irq:29 memory:d0000000-dfffffff memory:e0000000-e01fffff ioport:e000(Größe=256) memory:fcc00000-fcc7ffff memory:c0000-dffff

I'm very thankful for any kind of help or advice.

Hi, I have just tried a search using your information above to see if there have been similar posts on AskUbuntu as Zorin 16 is a fork of Ubuntu 20.04. I'm stumped. I will leave it to those with more knowledge. Hope it gets fixed soon!

Thank you very much for searching.
I tried to do a little research in advance but didn't find anything to.

Today, when I started my PC again the secondary monitor was not recognized again, but after I replugged it (similar to the behavior on my laptop) the screen worked flawless. When I locked my screen (Super + L) the second monitor stopped working even after a reboot.

Can you please post your terminal output of the command

xrandr

This is the output after booting (not working):

Screen 0: minimum 320 x 200, current 2560 x 1440, maximum 16384 x 16384
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     59.95*+
   1920x1200     59.88  
   1920x1080     60.00    50.00    59.94  
   1680x1050     59.95  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1440x900      59.89  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    60.00    59.94  
   720x400       70.08  
DisplayPort-2 disconnected (normal left inverted right x axis y axis)

This is the output, after I replugged the second monitor (working):

Screen 0: minimum 320 x 200, current 3640 x 1920, maximum 16384 x 16384
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 connected primary 2560x1440+0+337 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     59.95*+
   1920x1200     59.88  
   1920x1080     60.00    50.00    59.94  
   1680x1050     59.95  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1440x900      59.89  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    60.00    59.94  
   720x400       70.08  
DisplayPort-2 connected 1080x1920+2560+0 right (normal left inverted right x axis y axis) 598mm x 336mm
   1920x1080     60.00*+  50.00    59.94  
   1680x1050     59.88  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x800      59.91  
   1152x864      75.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08

Today after locking and unlocking the screen it kept working.

I know the cables could be expensive, and you may not have another around, but have you tried using a different cable?

Check the cable you connect to your second monitor for breaks, creases and attempt to switch it with the first monitor cable.

This really sounds like a wiring issue. Where bumping the table shifts the cable just enough to be detected/undetected.

I was sure to have this confirmed to myself and tried the following a few minutes ago:

  1. Booting to Zorin: Second screen not recognized.
  2. Booting to Windows (no cables touched): Second screen is recognized.
  3. Booting to Zorin: Second screen not recognized.
  4. Booting to Windows (no cables touched): Second screen is recognized.
  5. Booting to Zorin: Second screen not recognized.
  6. Switched to another cable: Second screen is recognized.
  7. Booting to Zorin: Second screen not recognized.
  8. Switched to a third cable while shut down: Second screen not recognized.

IMHO this rules out any issue with the cable, because windows (on the same hardware) has no problems and different cables only help so much when replugged.

I don't think it's a ZORIN specific issue, as my Windows-Laptop behaves exactly the same. TBH I'm surprised my desktop running windows doesn't have this problem.

I'm open for any suggestions. I'll try some other distros from a USB-drive this weekend and try to contact the screen manufacturer too.

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This makes me wonder if the Monitor power draw is too high for the notebook computers.

In case of the notebook (or the desktop) no power should be drawn.
The main monitor (fujitsu) has a (for my understanding strong) power supply and is able to charge the notebook.

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Yes, I crossed topics,here, sorry. I was just reading about Tablet Monitors and my brain did not catch up with reality before I posted.

I've heard back from the displays manufacturer: In his word no linux-distro are ever to be supported by fujistu.
He gave me the tip to try to accomplish the following windows-settings:

  1. Öffnen Sie die Systemsteuerung
  2. Suchen Sie nach Energieoptionen
  3. Energiesparplaneinstellungen ändern
  4. Erweiterte Energieeinstellungen ändern
  5. Erweitern Sie den Reiter PCI Express
  6. Erweitern Sie Link State Power management
  7. Wählen Sie sowohl unter Akku und Netzbetrieb – Aus
  8. Klicken Sie übernehmen

Roughly translated to:
1st Open system control panel
2nd Search for energy options
3rd Change plan settings
4th Change advanced power settings
5th Expand tab PCI Express
6th Expand tab Link State Power management
7th Choose Off
8th Click Apply

Does anyone know if there are similar PCIe power settings in ZORIN OS or any kind of Linux?

Actually, there is such an application, though it doesn't come with Zorin OOB. Tlp is what you need to make these modifications. Directions to install it are here.

Be careful in what you change.

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I could install tlp and tlp-rdw via apt-get, but it didn't finde tlpui.
But I found it in the Zorin Software Store.
The required setting as far as I can tell would be in the tab PCIe:
PCIE_ASPM_ON_AC set to "off", as I couldn't find "off" I guess "performance" has to be the right one.
I also set PCIE_ASPM_ON_BAT to "off"

I'm gonna report back if this solved it.

EDIT: This didn't help!
I checked my BIOS too and the PICE ASPM level is set to disabled there as well.

This was the only software that I'm aware of that modified these settings. You may be able to manually change it, though I'm not aware of what available options are for that setting.

Performance would assign the PCIe preference and more voltage, keeping it active more. If conservative or on-demand are options, you may want to choose one of them.

I will see if I can find a solution for this, but I warn not to expect one, as not all Linux issues have resolutions until kernel updates allow for them.

Edit: i understand now, my mistake. You don't want to disable power for a PCIe slot, you don't want it to be managed or shut off.

You can disable gnome's automatic power saving. There may be a way to disable power saving globally in tlp as well.

Forgive my mistake.

According to 20.04 - Disabling Power Saving features via command line - Ask Ubuntu, you can disable auto suspend (which may help) with the following:

To disable automatic suspend:

gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing' 
gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-type 'suspend'

I'm not sure if that was a shot in the right direction but neverteless tried to disable automatic suspend.
Unfortunately it didn't work.

Edit: I'm starting to question the setting the Fujitsu-dude told me.
Neither the windows-notebook he was talking about nor my PC use a discrete GPU.
Maybe I'm to tired right now, but does setting PCIe power management even affect integrted graphics?

Integrated graphics are a part of the cpu, meaning it doesn't require a high speed path to the processor, as it is a part of it. That is the point of PCIe. Direct, fast, path directly to the processor.

If anything, you would want to disable power management of the processor, or set it to performance.

After many e-mails back and forth between FUJITSU, SAMSUNG and GIGABYTE it seems like the DP to HDMI adapter is the problem.

Just to conclude:
Setup A: Desktop PC Win 10 - DP <-> DP - FUJITSU Monitor - DP <-> DP-HDMI-Converter <-> HDMI SAMSUNG Monitor --> flawless

Setup B: Desktop PC Zorin/Ubunutu/Mint - DP <-> DP - FUJITSU Monitor - DP <-> DP-HDMI-Converter <-> HDMI SAMSUNG Monitor --> only working after un- and replugging
Setup C: DELL Notebook Win 10 - DP <-> DP - FUJITSU Monitor - DP <-> DP-HDMI-Converter <-> HDMI SAMSUNG Monitor --> only working after un- and replugging

Setup D: Desktop PC Zorin/Ubunutu/Mint - DP <-> DP - FUJITSU Monitor - DP <-> DP DELL Monitor --> flawless
Setup E: DELL Notebook Win 10 - DP <-> DP - FUJITSU Monitor - DP <-> DP DELL Monitor --> flawless

It seems like the DP-HDMI converter is only working with my Windows-Desktop system but I have no clue why this cloud be.
Another possiblity could (?) be to un- and replug the SAMSUNG Monitor in Software. Does anybody have a idea how I cloud do this in Zorin?

A converter is a separately produced and independent component by a manufacturer. That manufacturer likely only flashed the converter device with Windows OS drivers. This is not unusual.

I ran into similar issues with a converter from HDMI to DP and I solved it by buying a normal Display Port Cable. In another circumstance, I purchased a Linux Compatible HDMI to DP cable on Amazon and that one worked properly.

You can use lshw to list your hardware, if the monitors are detected, you can get their IDs and block/unblock them. They will be listed as /dev/ and then whatever the id is.