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ATI issues at 1400x1050 (Thinkpad T42 w/ 8F1111A)

joshk

By joshk,
in OSx86 10.4 (Tiger)

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joshk
joshk
Posted
Posted

So I've got OSX 8F1111A running fine on my IBM Thinkpad T42. Except for some weird video problems which I'll demonstrate below:

 

http://www8.rapidupload.com/d.php?file=dl&filepath=16349

 

OK, so it only happens when using 1400x1050, the full resolution of my laptop. But I can't really stand 1024x768 at all.

 

Any idea how this might be fixed?

 

Also the usual, PRO/Wireless 2200 card doesn't work, I'm really looking forward to a functional iwi2200.

 

Thanks...

joshk
joshk
Posted
  • Author
Posted
Already discussed, use "search". When the window contents gets garbled, press F11 twice and you're done for the current displayed windows. For new windows, do the same.

 

Well, OK.. that does work but there is not a more permanent solution?

 

I've been searching and can't find a thread which discusses this issue specifically :X

sigxcpu
sigxcpu
Posted
Posted (edited)

Nope. Actually, afaik macs are 16:9 and 1400x1050 is not a known resolution. Maybe this triggers the bug. There is 1600x1050 or 1400x920 (if i'm not wrong). I have a HP NC8000 with exactly the same problem. You can get this resolution without any problem if you disable QE.

Edited by sigxcpu
sigxcpu
sigxcpu
Posted
Posted (edited)

Nope. Not by default. Specified "Graphics Mode"="1400x1050x32" as kernel parameteres in the boot loader. If it works, you can make it permanent like this:

laptop:~ sigxcpu$ cat /Library/Preferences/SystemConfiguration/com.apple.Boot.plist 
<?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>-v fn=3</string>
	<key>Boot Graphics</key>
	<string>Yes</string>
	<key>Graphics Mode</key>
	<string>1400x1050x32</string>
</dict>
</plist>

Edited by sigxcpu
  • 1 month later...
sev7en
sev7en
Posted
Posted
Nope. Not by default. Specified "Graphics Mode"="1400x1050x32" as kernel parameteres in the boot loader. If it works, you can make it permanent like this:

laptop:~ sigxcpu$ cat /Library/Preferences/SystemConfiguration/com.apple.Boot.plist 
<?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>-v fn=3</string>
	<key>Boot Graphics</key>
	<string>Yes</string>
	<key>Graphics Mode</key>
	<string>1400x1050x32</string>
</dict>
</plist>

 

Thank you but this way doesn't work for me... do you have any other suggestion?

 

 

 

Thanks!!!

Peelers
Peelers
Posted
Posted
So I've got OSX 8F1111A running fine on my IBM Thinkpad T42. Except for some weird video problems which I'll demonstrate below:

 

http://www8.rapidupload.com/d.php?file=dl&filepath=16349

 

OK, so it only happens when using 1400x1050, the full resolution of my laptop. But I can't really stand 1024x768 at all.

 

Any idea how this might be fixed?

 

Also the usual, PRO/Wireless 2200 card doesn't work, I'm really looking forward to a functional iwi2200.

 

Thanks...

 

This problem only happen on 1400x1050x32. If you change the resolutions to any other (1280x1024x32) it will be o.k. If you still want 1400x1050x32, then use "Mouse Expose", it will fix that problem but will slow down the computer a little bit.

 

hope that help...

java script:emoticon(':blink:', 'smid_2')

ZildjianKX
ZildjianKX
Posted
Posted
This problem only happen on 1400x1050x32. If you change the resolutions to any other (1280x1024x32) it will be o.k. If you still want 1400x1050x32, then use "Mouse Expose", it will fix that problem but will slow down the computer a little bit.

 

hope that help...

java script:emoticon(';)', 'smid_2')

 

Do you happen to know what the problem originates from? Is it just because 1440x1050 is an unsupported resoution? Or is it a VESA 2.0 thing?

ZildjianKX
ZildjianKX
Posted
Posted
Reduce the depth to 24 - this will reduce the problem, but not completely remove it.

 

I'm also on a T42 with the same issues.

 

Did you get the wireless to work? And the volume keys?

 

I don't think you can get the volume keys to work, since they require software. Does your sleep mode work?

Peelers
Peelers
Posted
Posted
Do you happen to know what the problem originates from? Is it just because 1440x1050 is an unsupported resoution? Or is it a VESA 2.0 thing?

 

Sorry, I don't know where it originates from. I'm still trying to figure out how to fix it and also a mouse tearing problem too.. I don't like to use Mouse Expose because its slow down the computer a little...

If you have an ATI card, you can type in "?" at begining before it boot, you can see that the card support 1400x1050x32 but OSX just have a problem only that particular resolution..

TribesMan
TribesMan
Posted
Posted

Volume keys on my T42 work, there is no on screen display of volume change like in windows, but volume is de/increased if I press the button. Even the mute button works just fine. Also Fn+F5 key combination works for enableing Bluetooth.

  • 1 year later...
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