GameEsCZ Posted August 5, 2009 Share Posted August 5, 2009 Is there any way to change resolution on this card? I`ve got 16:10 display and resolution 1024x768 looks really bad. Link to comment https://www.insanelymac.com/forum/topic/178241-radeon-mobility-3430-changing-resolution/ Share on other sites More sharing options...
rudbull Posted August 5, 2009 Share Posted August 5, 2009 Is there any way to change resolution on this card? I`ve got 16:10 display and resolution 1024x768 looks really bad. Method 1: Temporary When OSX is booting, tap F8 to get to the boot prompt Type in "Graphics Mode"="1280x1024x32" (with quotations, replacing the resolution with the resolution you want) Method 2: Permanent Boot OS X Open the TextEdit program in the Applications folder With TextEdit, open the file: /Library/Preferences/SystemConfiguration/com.apple.Boot.plist Open the file, and add these two lines (right after the <string>Yes</string> line if you are on Tiger or <string></string> line if you are on Leopard) <key>Graphics Mode</key> <string>1280x1024x32</string> Replace the 1280x1024x32 with the resolution you want Then, in go to File >> Save As.. Save the file as com.apple.Boot.plist on the Desktop (make sure the .plist part is there!) Navigate the the /Library/Preferences/SystemConfiguration/ folder Drag your com.apple.Boot.plist file on the Desktop into the folder window When a messages appears, click Authenticate and Replace and enter your password You're done! Reboot OS X to see the changes Here is an example of what the com.Apple.boot.plist file looks like with Leopard: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http:// www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>kernel</key> <string>mach_kernel</string> <key>Kernel Flags</key> <string></string> <key>Graphics Mode</key> <string>1280x1024x32</string> </dict> </plist> Link to comment https://www.insanelymac.com/forum/topic/178241-radeon-mobility-3430-changing-resolution/#findComment-1217341 Share on other sites More sharing options...
GameEsCZ Posted August 5, 2009 Author Share Posted August 5, 2009 I tried that "Temporary" option.. I type "Graphics Mode"="1280x800x32" (I need 16:10 resolution) and hit Enter, but it start in 1024x768 again. Link to comment https://www.insanelymac.com/forum/topic/178241-radeon-mobility-3430-changing-resolution/#findComment-1217374 Share on other sites More sharing options...
rudbull Posted August 5, 2009 Share Posted August 5, 2009 I tried that "Temporary" option.. I type "Graphics Mode"="1280x800x32" (I need 16:10 resolution) and hit Enter, but it start in 1024x768 again. 1280x800 is the maximum resolution for your screen? sorry but i don't think that 1280x800 will work until you install the driver for your videocard. You can try 1152x864. Link to comment https://www.insanelymac.com/forum/topic/178241-radeon-mobility-3430-changing-resolution/#findComment-1217775 Share on other sites More sharing options...
Antonio92 Posted August 7, 2009 Share Posted August 7, 2009 Mobility Radeon HD series are so weird that no one with one of them can change resolution. I have a Mobility Radeon HD 3470 and I can't boot with a higher resolution than 1024x768 even if I do any of the things rudbull said. Two years ago, I had a nvidia geforce 8800GTS on my desktop and it was not supported yet, although rudbull advice worked for that case. So I guess there is no way to get more than this with our mobility HD radeon cards. We will have to wait for ages @rudbull: It's not a resolution problem. Whatever is wrong, it's wrong with drivers. So don't think setting up 1152x864 will help, it won't. Link to comment https://www.insanelymac.com/forum/topic/178241-radeon-mobility-3430-changing-resolution/#findComment-1219498 Share on other sites More sharing options...
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