1 OpenChrome DDX Version 0.6 Release Note (March 7th, 2017) 2 --------------------------------------------------------- 3 4 OpenChrome DDX is an open source implementation of X.Org Server 5 DDX (Device Dependent X) graphics device driver for VIA Technologies 6 UniChrome and Chrome9 IGPs. (Integrated Graphics Processor) 7 OpenChrome DDX handles only 2D and video acceleration. 8 Please note that OpenChrome does not support VIA Technologies IGPs 9 that are related to Trident Microsystems (i.e., Apollo MVP4, PLE133, 10 and KLE133) or S3 Graphics (i.e., KM266). Here is the project home 11 page for OpenChrome. 12 13 http://www.freedesktop.org/wiki/Openchrome/ 14 15 Please note that VIA Technologies does not support OpenChrome in any way. 16 17 18 19 Supported Chipsets 20 ------------------ 21 22 - CLE266 23 - KM400(A) / KN400(A) / P4M800 24 - K8M800 / K8N800 25 - PM800 / PN800 / PM880 / CN333 / CN400 26 - P4M800 Pro / VN800 / CN700 27 - CX700 / VX700 28 - P4M890 / VN890 / CN800 29 - K8M890 / K8N890 30 - P4M900 / VN896 / CN896 31 - VX800 / VX820 32 - VX855 / VX875 33 - VX900 34 35 36 37 Supported Features 38 ------------------ 39 40 - VGA 41 - DVI from an integrated TMDS transmitter (CX700, VX700, and VX800 42 chipsets) 43 - DVI from Silicon Image SiI 164 and VIA Technologies VT1632(A) TMDS 44 transmitters 45 - Flat Panel 46 - EXA acceleration (RENDER acceleration) 47 - Xv and XvMC 48 - Dual monitor support 49 50 51 52 Unproven Features 53 ----------------- 54 55 - Standby resume 56 - TV out 57 - KMS support 58 (Kernel Mode Setting; requires the use of still in 59 development KMS supporting OpenChrome DRM. See "Where to Obtain 60 OpenChrome Source Code" section for more details.) 61 62 63 64 Unimplemented Features 65 ---------------------- 66 67 - Hardware cursor support for CLE266, KM400(A) / KN400(A), and 68 P4M800 chipsets 69 - DVI via Chrontel TMDS transmitter 70 - LVDS via VT1631 / VT1636 LVDS transmitter 71 - External HDMI transmitter 72 (i.e., Jetway J7F5M-VHE-LF motherboard, VIA Embedded EPIA-P720 73 motherboard, etc.) 74 - HDMI support for VX900 chipset 75 (HDMI is supported via still in development KMS supporting 76 OpenChrome DRM. See "Where to Obtain OpenChrome Source Code" 77 section for more details.) 78 - DisplayPort support for VX900 chipset 79 80 81 82 OS Support 83 ---------- 84 85 - X.Org Server Version 1.7 or later 86 (It might not work correctly if it is compiled against an older 87 X.Org Server.) 88 - Linux Version 2.6.32 or later 89 (Note: For Linux Version 4.5 or later, you may have to blacklist 90 vesafb. This is a bug that has not been fixed so far.) 91 92 93 94 What's New for OpenChrome DDX Version 0.6 95 ----------------------------------------- 96 97 OpenChrome DDX Version 0.6 is an improved version of OpenChrome DDX 98 Version 0.5 with a number of improvements made to the code. OpenChrome 99 DDX Version 0.6 is written in a way to completely replace Version 100 0.2.904 through 0.5. 101 102 OpenChrome DDX Version 0.6 has added the following new features. 103 104 - First official support for CX700, VX700, and VX800 chipsets 105 integrated TMDS transmitter (i.e., DVI support) 106 - Initial support for Silicon Image SiI 164 TMDS transmitter 107 108 109 OpenChrome DDX Version 0.6 has the following improvements. 110 111 - Improved FP reinitialization when resuming from standby 112 (HP 2133 Mini-Note, FIC CE260 / CE261 based netbooks like 113 Everex CloudBook and Sylvania g netbook) 114 - Improved automatic detection of display resources 115 - Improved X Server stability in dual monitor mode 116 - Automatic active steering of the display controller channel to the 117 correct display output device 118 119 120 OpenChrome DDX Version 0.6 fixes the following bugs. 121 122 - Fix for the disruption of the VT (Virtual Terminal) screen bug 123 introduced in Version 0.5 124 - Fix for HP 2133 Mini-Note's PCIe WLAN getting turned off 125 inadvertently bug introduced in Version 0.5 126 127 128 129 How to Contact OpenChrome Developers 130 ------------------------------------ 131 132 Please visit these OpenChrome mailing lists. 133 134 http://lists.freedesktop.org/mailman/listinfo/openchrome-users 135 http://lists.freedesktop.org/mailman/listinfo/openchrome-devel 136 137 openchrome-users mailing list is meant for non-technical users asking 138 questions about how to use OpenChrome, etc. openchrome-devel mailing 139 list is for discussing OpenChrome development issues. 140 141 142 143 Support for Older Versions 144 -------------------------- 145 146 The OpenChrome Project practices rolling release update policy for 147 OpenChrome DDX. What this means is that the older version of 148 OpenChrome DDX will not be supported once a new version is out. 149 It is sometimes useful to try out the older version, in order to see 150 if a regression has occurred, but generally speaking, there will be 151 no fixes for the older versions. OpenChrome DDX is written so that it 152 can be compiled against X.Org Server Version 1.7 or later and Linux 153 Version 2.6.32 or later. We will likely maintain this minimum platform 154 requirement for the foreseeable future. What this means is that if the 155 user wanted to try the latest OpenChrome DDX, it can do so with an OS 156 that was released around Year 2010. OpenChrome DDX might still compile 157 for anything older than that, but it might not be stable enough to be 158 useful. 159 160 161 162 Where to File a Bug Report 163 -------------------------- 164 165 In order to file a bug report, please visit http://bugs.freedesktop.org. 166 When you file the bug, file it against "xorg." When specifying the 167 component, please select "Driver/openchrome." This allows a message to 168 be sent to openchrome-devel mailing list, so that developers can be 169 notified of the bug. 170 It is highly recommended to file the bug report over at 171 http://bugs.freedesktop.org rather than sending a message to 172 openchrome-devel mailing list. Also, filing a bug report against the 173 Linux / BSD distribution you are using (i.e., Debian, Ubuntu, Fedora, 174 etc.) will likely be a waste of your time since the developers for those 175 distributions do not directly work on developing OpenChrome. 176 177 178 179 Where to Submit a Patch 180 ----------------------- 181 182 In order to submit a patch to improve OpenChrome, please visit 183 http://bugs.freedesktop.org. Open a bug report and upload the patch there. 184 When you file the bug, file it against "xorg." When specifying the 185 component, please select "Driver/openchrome." This allows a message to 186 be sent to openchrome-devel mailing list, so that developers can be 187 notified of the bug. 188 189 190 191 Where to Obtain OpenChrome Source Code 192 -------------------------------------- 193 194 OpenChrome source code repository is located at. 195 196 http://cgit.freedesktop.org/openchrome/xf86-video-openchrome/ 197 198 199 OpenChrome DRM (Direct Rendering Manager) module source code 200 repository is located at. 201 202 https://cgit.freedesktop.org/openchrome/drm-openchrome/ 203 https://cgit.freedesktop.org/openchrome/drm-openchrome/tree/drivers/gpu/drm/via 204 205 206 207 If You See a Bug 208 ---------------- 209 210 If you see a bug, please don't be surprised. OpenChrome has been in 211 development for more than 10 years. In that process, there were many 212 different developers that wrote the code in varying ways. OpenChrome 213 is a unified graphics device driver that supports 12 generations of 214 VIA Technologies IGP starting from CLE266 chipset all the way to 215 VX900 chipset. Even the VIA Technologies in house unified graphics 216 device driver does not support the number of devices OpenChrome does. 217 Furthermore, VIA Technologies IGPs tend to rely heavily on many 218 different external encoders and transmitters to display the image. 219 As a result, it is very difficult to get the code right for every 220 possible configuration you can think of. 221 Starting with OpenChrome Version 0.4, the project is under new 222 management, and moving forward, the emphasis will be on device driver 223 reliability and code maintainability. 224 225 (End of document.) 226
Indexes created Mon Oct 26 00:26:21 UTC 2026