The Linux remote desktop server built on open source technology.

ThinLinc 3.0.0 Release Notes


The Swedish spring has arrived. ThinLinc 3.0.0 is finally ready. As before, this version includes many new features and corrections, in total more than 120 enhancements. As the version number indicates, this release contains extensive improvements:

  • We are shipping the third generation VNC server core. It is based on the latest X.Org and TigerVNC versions, and includes amazing performance enhancements. Given a reasonable fast server, client, and network, it is now possible to play back motion graphics, in full screen mode. This can be done without any client side video decoder software or specialized handling of video. These performance enhancements also means that ThinLinc works very well in conjunction with the VirtualGL software, which provides hardware accelerated OpenGL on the server side. This allows applications such as Google Earth to run with good performance.
  • Support for Virtual Desktop Infrastructure (VDI) has been added. The VDI concept combines the power of thin client technology with personal single-user machines, typically virtualized. The ThinLinc VDI support requires no additional client software, and unique features such as microphone support is available for VDI users as well.
  • The size of the session can now be dynamically changed, since support for the Resize and Rotate Extension (RandR) has been added.

Changes in This Release

For each enhancement, the issue number is given in parentheses.


  • ThinLinc works on most modern Linux distributions and Sun Solaris (R). This release has been extensively tested on the following platforms:
    • Red Hat (R) Enterprise Linux 5.3 (32-bit)
    • SUSE Linux Enterprise Desktop 11 (R) (32-bit)
    • Ubuntu (R) 9.04 beta (64-bit)
    • Sun Solaris (R) 10
  • Solaris 10 is now required: Older versions are no longer supported. (2911)
  • Installation now works correctly on 64-bit systems based on Debian, such as Ubuntu. (2952, 1812)
  • The server software now requires a Pentium III (i686 with MMX and SSE support) or compatible CPU. (2982)
  • The X server is now based on the latest X.Org release, version 7.4. X.Org is the most popular implementation of the X Window System, now used in most Linux distributions and BSD variants, Sun Microsystems' Solaris, and Mac OS X. (2408)
  • The default color depth of the X server has been changed from 16 to 24 bits per pixel. This has been done to maximize performance, compatibility, and image quality. (275)
  • This version features a new session profile selection dialog. In addition to its more modern style, it also supports translations, screenshots, and dynamically fetched descriptions. (2267)
  • ThinLinc can now act as a VDI Broker (Virtual Desktop Infrastructure Broker). The broker is implemented as an extension to the existing profile selection dialog and Application Server Groups concept. This means that the selection between different Linux and Windows desktops, and personal and multiuser machines, can be done within the same user interface. The normal mechanism for assigning profiles can be used to activate VDI for certain users. If the virtual machine is powered off, ThinLinc can start it up before connect. This feature is currently limited to VMware environments. (2908, 3004, 3035)
  • A default background image is now set. The background color and image can also be configured more easily. (2768)
  • Windows XP has been added to the list of officially supported RDP servers. (3022)
  • Shadowing of users with uppercase usernames is now functional. (2884)
  • Shadowing by a user with an uppercase username should now work correctly. (3053)
  • Submitting print jobs to the nearest and thinlocal queues should now work correctly even if the username contains uppercase characters. (2901)
  • The server software now allows up to ten concurrent sessions without a license file. (3050)
  • The scalability of the VSM agent has been improved. (2856)


  • ThinLinc 3.0.0 is based on a new VNC project called TigerVNC. This new project has been founded by developers from Cendio, Red Hat, and the VirtualGL project. TigerVNC features many enhancements, including performance optimizations from TurboVNC. For example, JPEG compression and decompression has been accelerated using the "SIMD" extensions present in modern CPUs. (2751, 2926, 2930, 3034)
  • ThinLinc now supports the RandR Extension. This means that the size of the session can be dynamically changed. The change can be initiated either from the server or client. The size will be automatically changed when reconnecting to disconnected sessions. This is useful when reconnecting from a terminal with a different screen resolution. (2043)
  • The Webmin interface now includes support for managing Application Server Groups. (2908)
  • The client and server software has been translated to German. The Swedish, Spanish, and Brazilian Portuguese translations have been updated. (2917)
  • Exported directories which contains special characters such as whitespace are now correctly handled. (2943)
  • The End User License Agreement has been updated. (2744)


  • The client now requires a Pentium (i586) or compatible CPU, with MMX support. (2983)
  • A package for eLux RL terminals is now available. This means that the ThinLinc client can be easily installed on terminals such as Fujitsu Futro S450, S500, and S550. (2859)
  • A client package for Linux based EEE PC:s is now included. (2610)
  • The Linux client is now available in the Debian package format (.deb). This makes installation easier on 64-bit systems. (2951)
  • The UNIX client no longer uses ~/.ssh for SSH related configuration files. Instead, the directory ~/.thinlinc is used. Please note that this change means that server host keys must be reconfirmed. (2542)
  • The OS X client now reports the client's hardware address. (2643)
  • The OS X client now supports local printers. (2179)
  • The installation of the OS X client is now easier. (2175)
  • The "Current screen size" and "Near current screen size" settings in the OS X client should now work as expected. (2183)
  • The Windows client includes support for exporting the "My Documents" folder in a way that is independent of the underlying directory path. (2898)
  • The client includes a mechanism for notifying the user when an updated client is available. (100)
  • Version 2.1.0 of the client could only retrieve hardware addresses beginning with "00". This problem has now been corrected. (2977)
  • The client now retrieves the hardware address when logging in, instead of during startup. This means that the hardware address will be correctly reported even if the network is started after the ThinLinc client. This is often the case when using NetworkManager. (2893)
  • A new client parameter, HOST_ALIASES, can be used to specify client side host and port translations. This feature can be used with special network and connection scenarios, such as when running ThinLinc over existing SSH or TLS tunnels, or to work around incorrect DNS configurations. (1580)
  • With version 2.1.0 of the UNIX client, the screen size setting "Current screen size" was not working. Instead, it behaved just like "Near current screen size". This problem has now been corrected. (3056)

Smart Card Support

  • Previous versions of the Windows client restricted the username to 99 characters. This caused problems when the client was configured to automatically connect when the card was inserted, since the username derived from the certificate can be longer. This problem has been corrected. (3049)
  • Enabling smart card authentication for eDirectory/LDAP users can now be done automatically, since the tl-ldap-certalias tool can create the authorized_keys file. (2790)

Novell Integration

  • When connecting to a Windows XP machine with the Novell Client, using Single Sign-On, it is necessary to send the fully qualified Novell username. However, if later reconnecting to a disconnected session, the Novell client requires that that short username is used. ThinLinc 3.0.0 includes a mechanism for solving this problem. (3041)

Windows (R) Integration

  • Smart Card Single Sign-On with Active Directory environments is now supported: A custom GINA is provided, which can retrieve the PIN code via RDP. This function is currently limited to Windows Server 2003 and 2003R2. (2743)
  • When initiating RDP connections, a graphical progress dialog is displayed. In case any errors occurs, these are also displayed to the user. (1346)
  • The bandwidth used during sound playback has been reduced. (2924)


  • When using NetworkManager, keys for wireless networks can be saved in a "keyring". This means that it is no longer necessary to type in the key after each reboot. (2780)


  • Instructions on how to install a 32-bit runtime environment is included. (2894)

Corrected Issues

ThinLinc has also been enhanced in many other ways. The complete list of corrected issues is:

 100,  275,  365,  718,  719,  720,  721,  722,  737,  767,  787,
 788,  792,  794,  795,  796,  797,  913, 1180, 1232, 1346, 1386,
1580, 1664, 1812, 2043, 2052, 2074, 2174, 2175, 2179, 2183, 2184,
2186, 2267, 2347, 2386, 2408, 2414, 2525, 2536, 2542, 2597, 2610,
2643, 2658, 2659, 2743, 2744, 2751, 2752, 2756, 2765, 2767, 2768,
2780, 2790, 2834, 2836, 2843, 2844, 2845, 2846, 2856, 2859, 2865,
2866, 2869, 2875, 2878, 2879, 2880, 2883, 2884, 2889, 2893, 2894,
2898, 2899, 2900, 2901, 2907, 2908, 2911, 2916, 2917, 2920, 2923,
2924, 2926, 2930, 2938, 2943, 2944, 2951, 2952, 2955, 2970, 2971,
2972, 2977, 2982, 2983, 2987, 2990, 2993, 2994, 2995, 2996, 2997,
2998, 2999, 3007, 3008, 3018, 3019, 3022, 3023, 3025, 3034, 3035,
3038, 3041, 3042, 3049, 3050, 3053, 3056, 3068, 3071, 3081, 3083,
3088, 3090, 3091, 3093, 3095, 3097, 3101, 3102, 3110, 3129, 3130,
eLux (R) is a registered trademark of UniCon Software GmbH.
Fedora (R) is a registered trademark of Red Hat, Inc.
Google Earth (R) is a trademark of Google Inc.
Linux (R) is a registered trademark of Linus Torvalds.
Mac OS X is a trademark of Apple Inc.
Red Hat (R) is a registered trademark of Red Hat, Inc.
Solaris (R) is a registered trademark of Sun Microsystems, Inc.
SUSE (R) is a registered trademarks of Novell, Inc.
ThinLinc (R) is a registered trademark of Cendio AB.
Ubuntu (R) is a registered trademark of Canonical Ltd.
VMware (R) is a trademark of VMware, Inc.
Windows (R) is a registered trademark of Microsoft, Inc.