George Elliott Posted March 13, 2007 Share Posted March 13, 2007 (edited) Just installed from the "Jas 10.4.8 with v1p and Deviant Utility Patches" torrent on Demonoid. My hardware all seems to be working fine but the Apple displays utility in the system preferences doesn't detect the full resolution of my Acer AL2032W LCD, the best fit I can get is 1360x768 but this is quite a bit below the 1680x1050 the panel supports. Titan seems to be doing its job as I'm free to select quite a few different screen resolutions, just not the native screenmode. I think the monitor might be passing false information to the driver but I'm not sure, in windows vista the Nvidia driver seems to think that native resloution of the LCD is 1280x1024, but it will quite happily use 1680x1050. Has anyone else got this problem, or a solution for it? Full hardware specs are MOBO - ASROCK 775dual VSTA Processor- Core 2 duo E6600 Video - Nvidia 7900GS (PCI-E) Ram - 2G DDR400 Harddrive - 30G Maxtor (just happened to have it laying around) Monitor - Acer AL2032W (connected via DVI port) Any help would be appreciated, I've seen displayx mentioned a few places but can't seem to track it down. Edited March 13, 2007 by George Elliott Link to comment https://www.insanelymac.com/forum/topic/45092-any-way-of-getting-my-monitor-to-run-at-full-resolution/ Share on other sites More sharing options...
George Elliott Posted March 14, 2007 Author Share Posted March 14, 2007 Just bumping this up to see if anyone has any ideas. So far I've tried playing around with the EDID info stored in my LCD, thankfully I haven't broken anything but I've just had a bit of a scare. I first tried creating my own 1680x1050 screen mode to replace the one that my ACER recommends to GPU's by default. Was able to get it trying to run at 1680x1049 (couldn't get the viewsonic EDID editor to accept 1050 for some reason). XP and Vista both worked fine with it but OSX just gave a no signal error after the inital Apple bootscreen. I guess my screenmode creation wasn't quite up to scratch. I then programmed the Monitor with the EDID code from a Dell 20" monitor I found here on the forum. That was my scare, no monitor output at all. I had to reset, press F11 for boot popup menu (good job this ASROCK MB does that, wouldn't fancy trying to change BIOS on the blind), select floppy as startup disk and program my backup ACER EDID all with the aid of a black screen. Back up and running again, I think my next attempt will be to enter the DELL monitor mode manually into the Viewsonic program and see if I can get a working 1680x1050 mode that way. Success I now have my ACER AL2032W running OSX in native 1680x1050 mode. Much easier on the eyes. If anyone else has one of these monitors and an Nvidia card I can post up instructions and the modified EDID for you to try it yourself. Was surprised to see an extra screenmode appear, 1600x1000 is now available too. Link to comment https://www.insanelymac.com/forum/topic/45092-any-way-of-getting-my-monitor-to-run-at-full-resolution/#findComment-323741 Share on other sites More sharing options...
FreeOSX Posted March 15, 2007 Share Posted March 15, 2007 That is a wonderful thing to get the res correct. I can not get that to work on my compaq r3000z. Link to comment https://www.insanelymac.com/forum/topic/45092-any-way-of-getting-my-monitor-to-run-at-full-resolution/#findComment-324054 Share on other sites More sharing options...
feriso Posted March 15, 2007 Share Posted March 15, 2007 Try forcing teh res on the boot loader , press f8 and then type in "Graphics Mode"="1280x1024x32" or whatever you want your res + depth to be BTW include " as well Link to comment https://www.insanelymac.com/forum/topic/45092-any-way-of-getting-my-monitor-to-run-at-full-resolution/#findComment-324689 Share on other sites More sharing options...
George Elliott Posted March 16, 2007 Author Share Posted March 16, 2007 For anyone who wants to try here are the files. You'll need to copy them to a bootable floppy and boot from it. I've included three files, ddcw.exe - to perform the flash, acermod.txt - the new EDID information and acer.txt - a backup of the original EDID from the AL2032W. Before you start make sure that 1. You have an ACER AL2032 monitor 2. You have an Nvidia graphics card 3. They are connected with a DVI cable. You can compare your current EDID info by typing ddcw -c acer.txt -m 0 (or ddcw -c acer.txt -m 1 depending on the DVI connector your monitor is connected to). You should see the program options appear then two blocks of hex numbers and a pass or fail for the comparision. If the comparison fails don't proceed any further. If the comparison passes then type ddcw -f acermod.txt -m 0 (or -m 1 if that worked for you before). You should see the same options and then two blocks of hex numbers again (although the second block will be slightly different) and then after about a minute or two it should say it was successful. Remove the floppy and reboot. That's all there is to it. ACER_EDID_flash.zip Link to comment https://www.insanelymac.com/forum/topic/45092-any-way-of-getting-my-monitor-to-run-at-full-resolution/#findComment-324773 Share on other sites More sharing options...
FreeOSX Posted March 16, 2007 Share Posted March 16, 2007 I tried the "Graphics Mode"="1280x800x32" in the past and doe not do anything. Link to comment https://www.insanelymac.com/forum/topic/45092-any-way-of-getting-my-monitor-to-run-at-full-resolution/#findComment-324923 Share on other sites More sharing options...
pointzero Posted March 26, 2007 Share Posted March 26, 2007 OMG I think you just solved so many peoples problems. I tried talking to ACER support, nVIDIA support even MS support to no avail trying to fix the problem on my AL2032W. Thanks for the tip. EDIT: I just played around with ViewSonics EDID editor and threw in your code for the AL2032. You can change the name of the monitor also to show your name or anything you like. Kinda neat! So yep it works now and I don't need to force a resolution anymore. Link to comment https://www.insanelymac.com/forum/topic/45092-any-way-of-getting-my-monitor-to-run-at-full-resolution/#findComment-333191 Share on other sites More sharing options...
atwixtor Posted December 17, 2008 Share Posted December 17, 2008 ddcw -c acer.txt -m 0 (or ddcw -c acer.txt -m 1 depending on the DVI connector your monitor is connected to). You should see the program options appear then two blocks of hex numbers and a pass or fail for the comparision. If the comparison fails don't proceed any further. If the comparison passes then type ddcw -f acermod.txt -m 0 (or -m 1 if that worked for you before). You should see the same options and then two blocks of hex numbers again (although the second block will be slightly different) and then after about a minute or two it should say it was successful. Remove the floppy and reboot. That's all there is to it. Does this process work by any chance if you have an ATI Radeon (4800 series)? Also, does the bootable disk *have* to be a floppy, or can it instead be a bootable USB drive (installed with basic FreeDOS)? And most importantly, does this have to be run on a Windows machine or a Mac (I have to ask, just to be sure). I've tried this procedure with your files with a bootable USB on a DVI-connected Radeon 4870, but upon running any command, I immediately get the result: incorrect read/write capabilities reported - failure to open DDC channel. I do have an Acer 2032, and it is connected as the only monitor, connected via DVI. Suggestions? Link to comment https://www.insanelymac.com/forum/topic/45092-any-way-of-getting-my-monitor-to-run-at-full-resolution/#findComment-1002425 Share on other sites More sharing options...
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