Multiple monitors connected to computer

[KGranger]

At least half of our users have two monitors connected to their computer; however, LANSweeper will oftentimes only register that one monitor is connected. Can anyone tell me a)what LANSweeper is looking at to detect the monitor, b)why it sometimes picks up two and sometimes only picks up one, and c)how to make sure it picks up everything? Any help would be greatly appreciated.

[Esben_D]

Odd, theoretically that would also mean that the adaptor's data must have been stored in the registry

[FischbachM]

I solved the Problem on my own.

We use different Adapter from vga to HDMI and lansweeper use the serial numbers from the adapter and not from the actual Monitor.


Best regards


Michael Fischbach

[FischbachM]

Hi everyone,

have you found any solution for your problem yet?

we have the same issue (about 1/3 of our monitors are not shown in the assets bc of same serial numbers).

Best regards

Michael

[laurentiune]

I get this error:
There was an error parsing the query. [ Token line number = 1,Token line offset = 1114,Token in error = Left ]

[Susan_A]

laurentiune wrote:
I get this error:
There was an error parsing the query. [ Token line number = 1,Token line offset = 1114,Token in error = Left ]

Your database is likely hosted in SQL Compact, which doesn't support the LEFT function. You'll need to use SUBSTRING instead.

[fjca]

We have the same issue with some LG and Samsung monitors, they don't report model names.
They do however report correct PNP Device ID's, so what I did was to modify a custom monitor report that was posted on the forums, and them add a column with the PNP Device ID, so I could see all the models on one report.

I grabbed the PNP Device ID's from DriverAgent's Database, here

Select Top 1000000 tblAssets.AssetID,
  tblAssets.AssetName,
  tsysAssetTypes.AssetTypeIcon10 As icon,
  tsysOS.OSname,
  LTrim(RTrim(tblMonitor.MonitorManufacturer)) + Case
    When tblMonitor.MonitorManufacturer = 'ACR' Then ' (Acer)'
    When tblMonitor.MonitorManufacturer = 'ACI' Then ' (Asus)'
    When tblMonitor.MonitorManufacturer = 'AUO' Then ' (AU Optronics)'
    When tblMonitor.MonitorManufacturer = 'BA_' Then ' (Barco)'
    When tblMonitor.MonitorManufacturer = 'DEL' Then ' (Dell)'
    When tblMonitor.MonitorManufacturer = 'HWP' Then ' (HP)'
    When tblMonitor.MonitorManufacturer = 'IFS' Then ' (InFocus)'
    When tblMonitor.MonitorManufacturer = 'LEN' Then ' (Lenovo)'
    When tblMonitor.MonitorManufacturer = 'LGD' Then ' (LG)'
    When tblMonitor.MonitorManufacturer = 'LPL' Then ' (LG)'
    When tblMonitor.MonitorManufacturer = 'GSM' Then ' (LG)'
    When tblMonitor.MonitorManufacturer = 'PHL' Then ' (Philips)'
    When tblMonitor.MonitorManufacturer = 'SAM' Then ' (Samsung)'
    When tblMonitor.MonitorManufacturer = 'SEC' Then ' (Samsung)'
    When tblMonitor.MonitorManufacturer = 'TQ_' Then ' (Totoku)'
    When tblMonitor.MonitorManufacturer = '' And Left(tblMonitor.MonitorModel,
    4) = 'IBM ' Then 'IBM' Else '' End As MonitorManufacturer,
  Case When tblMonitor.PNPDeviceID Like '%GSM4B7A%' Then 'W1934'
    When tblMonitor.PNPDeviceID Like '%GSM443C%' Then 'L1718S'
    When tblMonitor.PNPDeviceID Like '%GSM446F%' Then 'L1753S'
    When tblMonitor.PNPDeviceID Like '%GSM4B32%' Then 'L192WS'
    When tblMonitor.PNPDeviceID Like '%GSM4B6A%' Then 'L194W'
    When tblMonitor.PNPDeviceID Like '%GSM4B6F%' Then 'W1942'
    When tblMonitor.PNPDeviceID Like '%GSM4E47%' Then 'L204WT'
    When tblMonitor.PNPDeviceID Like '%GSM43CC%' Then 'L1750S'
    When tblMonitor.PNPDeviceID Like '%SAM02B6%' Then '245B'
    When tblMonitor.PNPDeviceID Like '%SAM03D0%' Then '923NW'
    When tblMonitor.PNPDeviceID Like '%SAM04D3%' Then '2494H'
    Else tblMonitor.PNPDeviceID End Model_PNPDeviceID,
  tblMonitor.MonitorModel,
  tblMonitor.SerialNumber As MonitorSerial,
  Convert(VarChar(10),tblMonitor.ManufacturedDate,120) As ManufacturedDate,
  tblAssets.Domain,
  tblAssets.IPAddress,
  tsysIPLocations.IPLocation,
  tblAssetCustom.Model,
  tblBaseBoard.Product,
  tblAssetCustom.Serialnumber,
  tblAssets.Memory,
  tblAssets.Processor,
  tblAssets.Lastseen
From tblAssets
  Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
  Inner Join tsysAssetTypes On tsysAssetTypes.AssetType = tblAssets.Assettype
  Inner Join tblSystemEnclosure
    On tblAssets.AssetID = tblSystemEnclosure.AssetID
  Inner Join TsysChassisTypes On tblSystemEnclosure.ChassisTypes =
    TsysChassisTypes.Chassistype
  Inner Join tsysIPLocations
    On tblAssets.IPNumeric Between tsysIPLocations.StartIP And
    tsysIPLocations.EndIP
  Inner Join tsysOS On tblAssets.OScode = tsysOS.OScode
  Inner Join tblComputersystem On tblAssets.AssetID = tblComputersystem.AssetID
  Inner Join tblMonitor On tblMonitor.AssetID = tblAssets.AssetID
  Inner Join tblBaseBoard On tblAssets.AssetID = tblBaseBoard.AssetID
Where tblAssetCustom.State = 1

[Daniel_B]

Is it possible for lansweeper to get a list of serial/model numbers from actual monitor manufactures or is lansweeper dependent on users providing the information as specified?

Serial numbers should be unique to each single monitor. But as posted earlier, sometimes data aren't correctly written into the registry by the monitor driver. We recommend that you write a mail to our support in order to have a look at the issue.

[crashff]

As an aside, the windows registry information is based on the EDID stored in the monitor. For some reason, not all brands transmit the EDID, or the information is different/wrong (CTL comes to mind) The easiest way to check this is to look at your resolution settings and see if the monitor is detected as a generic, or if a make/model is shown.

If the EDID information is not being read correctly, there is a way to override it with an INF file to make a custom monitor definition for the computer: https://msdn.microsoft.com/en-us/library/windows/hardware/jj133967%28v=vs.85%29.aspx

[ritecithelp]

Is it possible for lansweeper to get a list of serial/model numbers from actual monitor manufactures or is lansweeper dependent on users providing the information as specified?