Portal 2

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Portal 2
Release dates
April 19, 2011
April 19, 2011
June 17, 2014
Portal 2 at Co-Optimus
Portal 2 at SteamDB
 Portal 2 at Wikipedia
Portal 2007
Portal 2 2011
Peer Review
Perpetual Testing Initiative
Sixense Perceptual Pack

Key points

Advantage Runs on low-end hardware.
Advantage Includes two-player split-screen co-op and controller support.
Advantage Built-in level editor with Steam Workshop support.[1]

General information

More information Official Portal 2 Site
More information Official Valve Portal 2 Site
More information Unofficial Portal Wiki
More information Portal Section of the Half-Life Wikia
More information Steam Community Discussions
More information Steam Users' Forums
More information Steam Workshop for Portal 2


Source DRM Notes Keys
Green Man Gaming Availability Table Icons - Steam.svg
Steam Availability Table Icons - Steam.svg
Retail Availability Table Icons - Steam.svg All copies of Portal 2 on PlayStation 3 come with a Steam key. Availability Table Icons - Steam.svg
Advantage Soundtrack is available for free in here.
Information All versions require Steam.

PlayStation 3[edit]

Information The PlayStation 3 version includes a single-use product key for Steam.
Advantage Can be linked to a Steam account, which allows cross-platform multiplayer with Steam players, access to your Steam friend list (chat, invites, etc.), Steam Achievements, and Steam Cloud save-games (PlayStation 3 saves are not compatible with other versions).

Essential improvements[edit]

Skip intro videos[edit]

Fix -novid

  1. Find Portal 2 in your Steam Library
  2. Right-click the game name
  3. Select Properties
  4. Select Set Launch Options...
  5. Input -novid
  6. Press OK and launch the game

Game data[edit]

Configuration files location[edit]

Steam <path-to-game>/portal2/cfg/

Save game data location[edit]

Steam <path-to-game>/portal2/SAVE/

Save game cloud syncing[edit]

System Native Notes
Steam Cloud Native
GameSave Manager Native

Video settings[edit]

In-game general video settings.
In-game advanced video settings.
Graphics option Option WSGF Notes
Widescreen resolution Native WSGF WS Gold.svg
Multi-monitor Native WSGF MM Gold.svg
Ultra-widescreen Native WSGF Incomplete.svg
4K Ultra HD Native WSGF Incomplete.svg
Field of view (FOV) Hackable See Field of view (FOV).
Windowed Native
Borderless fullscreen windowed Native
Anisotropic filtering (AF) Native Up to 16 samples.
Anti-aliasing (AA) Native MSAA (up to 8x), and CSAA (up to 16xQ).
Vertical sync (Vsync) Native Double and triple buffered.
High frame rate Native No frame rate or refresh rate cap.[2]

Field of view (FOV)[edit]

Fix Enter console commands[3]

  1. Go to Options, Keyboard/Mouse, and set Allow Developer Console to Enabled.
  2. Press ~ to toggle the console.
  3. Type in bind w "+forward; cl_fov 110" and press Enter.
  4. Type in viewmodel_offset_y 6 and press Enter. This moves the portal gun's position further away.
  5. Every time you load a map, press w to change the FOV to 110°.

Split-screen without bezels[edit]

Information Portal 2 split-screen mode was meant to be played on a single 16:9 screen only. If you have a different setup then, the image could not entirely fit the monitor(s).

Fix Edit split-screen aspect-ratio[4]

  1. Go to <path-to-game>/portal 2
  2. Open splitscreen_config.txt with a text editor
  3. Look for "aspect" "8 by 9" string
  4. Change it accordingly to your actual aspect ratio divided by 2


Information If you are interested to horizontal split-screen aspect ratio, you should look instead for "aspect" "32 by 9" string (remember that you need to multiply by 2 the aspect ratio now)

Input settings[edit]

In-game general controls settings.
In-game gamepad settings.
In-game key map settings.
Keyboard and mouse Native Notes
Remapping Native
Mouse acceleration Native
Mouse input in menus Native
Mouse Y-axis inversion Native
Controller support Native
Full controller support Native
Controller remapping Native
Controller Y-axis inversion Native

Audio settings[edit]

In-game audio settings.
Audio options Native Notes
Separate volume controls Native Over-all game volume and separate music slider.
Surround sound Native 7.1, 5.1 surround sound, 4 speaker surround[5]
Subtitles Native For non-English subtitles, see Changing subtitle language.
Closed captions Native
Mute on focus lost Native


Language UI Audio CC Notes
English Native Native Native
Finnish Native Impossible Native
French Native Native Native
German Native Native Native
Spanish Native Native Native
Czech Native Impossible Native
Danish Native Impossible Native
Dutch Native Impossible Native
Hungarian Native Impossible Native
Italian Native Impossible Native
Japanese Native Impossible Native
Korean Native Impossible Native
Norwegian Native Impossible Native
Polish Native Impossible Native
Portuguese Native Impossible Native
Romanian Native Impossible Native
Russian Native Native Native
Simplified Chinese Native Impossible Native
Swedish Native Impossible Native
Thai Native Impossible Native
Traditional Chinese Native Impossible Native
Turkish Native Impossible Native

Changing subtitle language[edit]

Fix Enter cc_lang LanguageName into the console

  1. Open the console and enter cc_lang LanguageName
  2. Substitute LanguageName with available language.


Multiplayer types

Type Native Players Notes
Local play Native 2 Co-op
Two player split-screen
LAN play Unknown
Online play Native 2 Co-op

Connection types

Type Native Notes
Matchmaking Native
Peer-to-peer Native
Dedicated Impossible
Self-hosting Native
Direct IP Hackable Open the console (~) and enter connect followed by the IP and port.


Protocol Port(s) and/or port range(s)
TCP (outbound) 27014-27050
UDP (outbound) 3478, 4379-4380, 27000-27030

VR support[edit]

3D modes Native GG3D Notes
Nvidia 3D Vision Native GG3D gold.svg
TriDef 3D Native GG3D gold.svg
iZ3D Native GG3D gold.svg

Issues unresolved[edit]

Hang on exit[edit]

Disadvantage New patch on July 12, 2013, introduced a crash when exiting the game. Application hangs and does not respond when the game is exited via the quit button on the main menu or task manager. Steam Cloud synchronisation resumes when forcefully quit. No fix has been announced.[6]

Issues fixed[edit]

Purple and black broken textures[edit]

Information A generic fix for this issue can be found on our Source engine page.

Split-screen co-op[edit]

Information As of November 20, 2012, splitscreen mode has been officially added for Standard Co-Op.[7]
Information If you'd like to use a keyboard/mouse for Player 1 and a controller for Player 2 in Windows, follow these instructions:

Fix Input joy_remap_player_for_controller1 2

  1. Open the console in Portal 2
  2. Input joy_remap_player_for_controller1 2
  3. Play
Information If you'd like to use a keyboard/mouse for Player 2 and a controller for Player 1 in OS X or Linux, follow these instructions:

Fix Use in_forceuser to switch keyboard and mouse to player 2

  1. Make sure your controller is connected beforehand
  2. Open Portal 2
  3. Open the console
  4. Start a coop game ss_map mp_coop_start
  5. Run the following commands sv_cheats 1 then in_forceuser 1
  6. Keyboard/mouse is now controlling player 2 and the gamepad is controlling player 1.
  7. Play

Black screen at launch[edit]

Fix Set your resolution to your native desktop resolution

'Visual 2005 Runtime' error[edit]

Fix Install Microsoft Visual Runtime Libraries

  1. Visit Microsoft Visual Runtime Libraries
  2. Download and install the files provided
  3. Run the game

'Portal 2 Failed to create D3D device' error[edit]

Fix Install DirectX

  1. Install/update DirectX
  2. Find Portal 2 in your Steam Library
  3. Right-click the game name
  4. Select Properties
  5. Select Set Launch Options...
  6. Input -w # -h #, where each # is your monitor's width and height respectively.

Freezes after logo intro video[edit]

Fix -novid

  1. Find Portal 2 in your Steam Library
  2. Right-click the game name
  3. Select Properties
  4. Select Set Launch Options...
  5. Input -novid
  6. Press OK and launch the game

Fix Verify Your Game Cache

  1. Find Portal 2 in your Steam Library
  2. Right-click the game name
  3. Select Properties
  4. Go to the Local Files tab
  5. Select Verify Integrity of Game Cache...
  6. This may take a while, just wait for it to finish
  7. Once it's done press OK
  8. Launch the game
Information If you have an FX Bulldozer CPU, such as the AMD FX 4100, you may need to:

Fix Update the BIOS

Information Updating the BIOS may fix this issue

Fix Orocho-CEG

  1. Visit this thread
  2. Download and open the Orocho-CEG application


Information Orocho-CEG must be restarted after each reboot

'Could not Load Library Client' error[edit]

Fix Add Steam.exe and portal2.exe to your firewall's exception lists

  1. Open your firewall's software
  2. Find your exception list
  3. Add Steam.exe and portal2.exe to your exceptions list
  4. Open the game

No sound[edit]

Fix Run the game with Stereo Sound

Sound causing stuttering[edit]

Fix Update your sound card drivers

Generic crash fixes[edit]

Fix Run as Administrator

  1. Go to the installation folder.
  2. Right-click on Portal2.exe and select Run as Administrator

Fix Run in compatibility mode

  1. Go to the installation folder.
  2. Right-click on Portal2.exe and select Run in Compatibility Mode
  3. Make it run in compatibility mode with Windows XP SP3

Cinematic audio stutter[edit]

Fix Update your audio device drivers

  1. Update audio device drivers
  2. Uninstall extra codecs you have installed

Lag physics blob fix[edit]

Fix Input r_threaded_blobulator 0 in the console

  1. Open the console in Portal 2
  2. Input r_threaded_blobulator 0

Display driver has stopped working[edit]

Fix Description

  1. Go to the installation folder.
  2. Right-click portal2.exe
  3. Select troubleshoot in compatibility issues
  4. Run Portal 2

Portal 2 with Integrated Intel Graphics[edit]

Information Portal 2 may have problems running on integrated Intel graphics cards, including crashing and black screens. Windowed mode may fix this.

Fix -windowed

  1. Find Portal 2 in your Steam Library
  2. Right-click the game name
  3. Select Properties
  4. Select Set Launch Options...
  5. Input -windowed
  6. Launch Portal 2

Other information[edit]


Technical specs Supported Notes
Direct3D 9
OpenGL 2.1 OS X and Linux only.
Shader Model support 2, 3
64-bit executable Native OS X and Linux only.[citation needed]


Middleware Notes
Physics Havok Heavily modified variant.
Audio Miles Sound System
Cutscenes Bink Video
Multiplayer Steamworks

Console commands[edit]

Information Games running on the Source engine can utilize Source Engine Console Commands for various tasks.

Fix Enabling the console in Source games

  1. Launch the game
  2. From the main menu select Options
  3. Select the Keyboard tab
  4. Click the Advanced button
  5. Check the box next to Enable developer console (~)
  6. Click Apply


Information Press ~ to open the console.
Information Some commands may first require you enabling sv_cheats. You can do so with sv_cheats 1.
Disadvantage Users without a US keyboard could experience some problems.
Information You can also have the console open by default on launch by following this guide:

Fix -console

  1. Find Portal 2 in your Steam Library
  2. Right-click the game name
  3. Select Properties
  4. Select Set Launch Options...
  5. Input -console
  6. Press OK
  7. Launch the game

Launch options[edit]

Information View this Steam Support Article regarding launch options as well as the relevant Valve Developer wiki page for further information and a list of useful Source engine launch options.

Fix Enabling a launch parameter

  1. Find the game in your Steam Library
  2. Right-click the game name
  3. Select Properties
  4. Select Set Launch Options...
  5. Input your selected launch options and separate each command with a space
  6. Press OK
  7. Launch the game

System requirements[edit]

Operating system (OS) XP, Vista, 7
Processor (CPU) Intel Pentium 4 3.0 GHz or 2 GHz dual-core
System memory (RAM) 1 GB (XP)
2 GB (Vista, 7)
Hard disk drive (HDD) 7.6 GB
Video card (GPU) 128 MB of VRAM
DirectX 9.0 compatible
Minimum Recommended
Operating system (OS)
Processor (CPU)
Intel Core Duo 2.0 GHz
System memory (RAM) 2 GB 4 GB
Hard disk drive (HDD)
7.6 GB
Video card (GPU)
NVIDIA GeForce 8600M
ATI Radeon HD 2400
Intel HD Graphics 3000


  1. News - Portal 2 Perpetual Testing Initiative Begins May 8
  2. New 120Hz Games Report
  3. Permanent FOV in Portal 2 and Change Portal Gun Position - YouTube
  4. Widescreen gaming blog post on Eyefinity in Left 4 Dead 1
  5. Portal 2 EAX sound fix for sublime sound - Steam Users' Forums
  6. http://community.pcgamingwiki.com/topic/398-portal-2-hangs-on-exit/
  7. Portal 2 Update Released - Steam News for Portal 2