Author Topic: Help me fix generateCRTCTimings  (Read 2447 times)

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Help me fix generateCRTCTimings
« on: December 17, 2009, 09:30:48 PM »
I posted this already in feature requests, which probably wasn't the right place. Hopefully no one gets mad.

I found something that this guy called TRAC added back in 2006 that fixed it in boot-132, so I tried it. Undid the comment out on generateCRTCTimings, and added this:

Code: [Select]
__asm__("movl %cr4,%eax \n"
"orl $1536,%eax \n"
"movl %eax,%cr4 \n");

right after this:

Code: [Select]
if ( (vesaVersion >> 8) >= 3 && refreshRate >= 60 &&
             (gBootMode & kBootModeSafe) == 0 )
            VBECRTCInfoBlock timing;

So first I just un commented out generateCRTCTimings, and then sure enough I would get a crash/reboot if I tried to set a refresh rate. Then I added the code above, and it didn't crash anymore, but the refresh rate was still 60 no matter what I specified.