H265 Decoding for graphics

Supported on: All Citrix Workspace supported platforms

Description

Use this policy to enable or disable the use of H265 decoding for remote graphics. When not configured the use of H265 decoding is not attempted.When enabled, Citrix Workspace will attempt to use the client GPU to decode using H265 decoder as long the as server supports H265 encoding. On client devices that do not support this feature it is disabled silently and reverts back to H264

Registry

HKLM Software\Policies\Citrix\ICA Client\Graphics Engine

Value name: EnableH265

Enabled: EnableH265 = 1

Disabled: EnableH265 = 0

REG Builder

BETA

Configure the state and elements to generate .reg, PowerShell, Intune, and SCCM outputs.

These exports replicate the policy's registry effect. Editing the registry directly is not the same as applying the GPO through the management console (no gpupdate, no central reporting). Test before production; HKLM changes require administrator rights.

Not configured Enabled Disabled

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: H265 Decoding for graphics
; State: Enabled
; Supported on: All Citrix Workspace supported platforms

[HKEY_LOCAL_MACHINE\Software\Policies\Citrix\ICA Client\Graphics Engine]
"EnableH265"=dword:00000001

PowerShell

# Exported from gporais.com
# Policy: H265 Decoding for graphics
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKLM:\Software\Policies\Citrix\ICA Client\Graphics Engine'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableH265' -Value 1 -Type DWord

Intune XML

No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.

Intune Remediation

# === Detection script ===
# Exported from gporais.com
# Policy: H265 Decoding for graphics
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

function Test-RegistryValue {
  param(
    [Parameter(Mandatory = $true)][string]$Path,
    [Parameter(Mandatory = $true)][string]$Name,
    [object]$Expected,
    [ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
    [switch]$Absent
  )

  try {
    $item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
  } catch {
    return $Absent.IsPresent
  }

  if ($Absent.IsPresent) { return $false }
  $actual = $item.$Name

  if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
  if ($Kind -eq 'MultiString') {
    $actualValues = @($actual)
    $expectedValues = @($Expected)
    if ($actualValues.Count -ne $expectedValues.Count) { return $false }
    for ($i = 0; $i -lt $expectedValues.Count; $i++) {
      if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
    }
    return $true
  }

  return [string]$actual -eq [string]$Expected
}

$checks = @(
  (Test-RegistryValue -Path 'HKLM:\Software\Policies\Citrix\ICA Client\Graphics Engine' -Name 'EnableH265' -Expected 1 -Kind DWord)
)

if ($checks -notcontains $false) {
  Write-Output 'Compliant'
  exit 0
}

Write-Output 'Non-compliant'
exit 1

# === Remediation script ===
# Exported from gporais.com
# Policy: H265 Decoding for graphics
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKLM:\Software\Policies\Citrix\ICA Client\Graphics Engine'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableH265' -Value 1 -Type DWord

SCCM CI

# Exported from gporais.com
# Policy: H265 Decoding for graphics
# State: Enabled
# Supported on: All Citrix Workspace supported platforms
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.

# === Detection script ===
# Exported from gporais.com
# Policy: H265 Decoding for graphics
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

function Test-RegistryValue {
  param(
    [Parameter(Mandatory = $true)][string]$Path,
    [Parameter(Mandatory = $true)][string]$Name,
    [object]$Expected,
    [ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
    [switch]$Absent
  )

  try {
    $item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
  } catch {
    return $Absent.IsPresent
  }

  if ($Absent.IsPresent) { return $false }
  $actual = $item.$Name

  if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
  if ($Kind -eq 'MultiString') {
    $actualValues = @($actual)
    $expectedValues = @($Expected)
    if ($actualValues.Count -ne $expectedValues.Count) { return $false }
    for ($i = 0; $i -lt $expectedValues.Count; $i++) {
      if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
    }
    return $true
  }

  return [string]$actual -eq [string]$Expected
}

$checks = @(
  (Test-RegistryValue -Path 'HKLM:\Software\Policies\Citrix\ICA Client\Graphics Engine' -Name 'EnableH265' -Expected 1 -Kind DWord)
)

if ($checks -notcontains $false) {
  Write-Output 'Compliant'
  exit 0
}

Write-Output 'Non-compliant'
exit 1

# === Remediation script ===
# Exported from gporais.com
# Policy: H265 Decoding for graphics
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKLM:\Software\Policies\Citrix\ICA Client\Graphics Engine'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableH265' -Value 1 -Type DWord