Custom Resolution Utility (CRU)
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11-28-2014, 02:20 AM
Post: #1118
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RE: Custom Resolution Utility (CRU)
(11-26-2014 10:12 PM)LTC Wrote: Hello ToastyX, I've used your CRU app to add EDID overrides to set the correct modes for my Dell P1130 21" CRT, which I'm trying to run in my new rig with a R9 280 (DVI-I to VGA adapter). My problem is with that bug you mentioned about AMD and Windows 8.1. The overrides don't take over after reboot and I need to use your restart64.exe not once, but several times checking and unchecking and applying the "Use Extended Display Identification Data (EDID) or driver defaults", until Catalyst decides to let me run my games, but not the windows desktop itself, with all the correct modes (some don't work on the desktop, only in fullscreen D3D and OGL apps, go figure). Not only is this time consuming, as it also apparently led to my display becoming garbled at the return to the desktop after a gaming session, with a subsequent crash of the display driver (atikmdag.sys), after which I've used your reset-all.exe to undo the changes to the registry and stopped trying for the moment to get this triple damned driver to work right.This sounds like a different driver bug. Restarting once should be sufficient, and the driver shouldn't crash. This is something AMD needs to fix. (11-26-2014 10:12 PM)LTC Wrote: Is there anything else I might try that doesn't involve scrapping my newly bought Win 8.1 licence or using outdated drivers?I've thought about making a new version of CRU that doesn't use EDID overrides, but the amount of work involved in creating a new program that supports both AMD and NVIDIA would be too much for me right now. You can try adding custom resolutions using this method: http://www.wsgf.org/article/force-custom...s-amd-gpus HSyncStart = Horizontal Active + Front Porch PixelClock = same as in CRU without the "." (148.50 MHz = 14850) I might make a command-line program for AMD to simplify that process and to bypass some restrictions it has for downsampling, but I don't know when I'll get around to doing that. Another idea is to try flashing the monitor's EDID with the override if it isn't write protected, if you can find some program to do that with your video card. CRU can export the override as a .bin file. Another option is to use a hardware EDID emulator that plugs in between the monitor and the video card, but user-programmable ones tend to be costly. |
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