Big desktop

T221 Radeon

とりあえず取り急ぎの備忘録。
海外の方で自分と同じ環境でビッグデスクトップ成功した方が
http://www.alabamawomen.org/link.php?url=----://www.widescreengamingforum.com/forum/viewtopic.php?t=17538&p=175418#p175418

Win7@64bit
Radeon HD5750*2
IBM T221
簡単にはこの環境で構築
以下英語のまま引用

このままうまくいくといいな

Step by step:
This is for folks with two converter boxes for each DG5. I have 2 DG5's and 4 converter boxes. I am using Windows 7 x64 and two Sapphire 5750 cards.
You should also download Moninfo and Phoenix EDID designer (easily googled).
1. I read off the EDID from the DG5 in the mode which allows for 2 x 1920x2400@48Hz (can't remember off hand which number it is), using Monifo from Entech (the company that makes powerstrip).

2. Using Phoenix EDID designer, make a new (blank) EDID file and type in as many values from the real EDID that I could, EXCEPT for all the timings (leave everything blank).

3. In the "Detailed timings" section, set up in Block #1 the 1920x2400 @ 48Hz timing:
Modeline............... "1920x2400" 312.490 1920 2072 2280 2640 2400 2401 2404 2466 -hsync +vsync
Took me a while to figure out which numbers corresponded to what in Phoenix EDID designer. I'd attach the INF file here but am not sure how.

4. Once you get everything close (by saving the EDID file as a .dat file and opening/confirming with MonInfo), you can use MonInfo to generate a EDID override monitor INF file.

5. This part I am cribbing from user Tulli in the AVSforum. He wrote a nice step-by-step guide to overriding the EDID with a INF file generated by Moninfo:
==========================================================

  • Right click on desktop and select "Personalize".
  • Click on Display->Change display settings.
  • Now click on the Screen of the AVR display.
  • Click on "Advanced settings"
  • Select Monitor Tab and click on "Properties".
  • Select Driver Tab and click on "Update Driver"
  • Select "Browse my computer for driver updates".
  • Select "Let me pick from a list of drivers on my computer".
  • Click on "Have Disk".
  • Click on "Browse".
  • Navigate to directory with the display device .inf file (Note: just in case, make sure that it's THE ONLY .inf file in that directory).
  • Click on Open, OK, and install the new driver.
  • Reboot.

=====================================================

6. So now you have tricked the card into thinking that the only available mode on the DG5 is 1920x2400@48Hz. On reboot the display should show up as 2 x 1920x2400 stripes @ the magical 48Hz.

7. Now go into Catalyst -> Desktops and Displays panel. Right click on your primary monitor, it will give you the option to "Create Group". Click yes to the dialog box if one pops up warning about disabling extended desktop. Another dialog box pops up "Select Layout". Here, choose horizontal span (2x1) layout.

8. Now, the Screen will flash, and usually go back to 2 x 1920x2400 stripes with duplicated screens on each, which is obviously what we don't want. Also, the Desktop and Displays panel is sort of frozen too, but you can close the panel. I was stuck at this step for several hours. Here's how to get around it.

9. Close the unresponsive Catalyst panel. Open it again (right click on desktop -> catalyst). Again, go to Desktops and Displays, and right click on the desktop icon. Choose "Display Group -> Disable".
Click yes.

10. The monitor goes blank and comes back with 1920x1200 x 2 stripes, again duplicated.

11. Again, in the Desktops and Displays panel, right click on the desktop icon, and select "Display Group -> Create Group"

12. Again, choose the 2x1 option here.

13. Voila!!!! Hallelujah! 3840x2400@48Hz, one desktop, Aero acceleration, all the Win7 goodness!!! Thank you ATI ENGINEERS!!!! I'm so psyched to be able to move away from XP though it did serve me well.

Yeang