Re: XFree86 4.1.0.1 problems on Tangerine iMac DV
On Wed, 2002-01-16 at 17:03, Adam Goode wrote:
> Well, the iMac is somewhat unusual, because for the 3 resolutions
> supported, only one refresh rate is allowed. These refresh rates
> are a bit higher than you find normally.
>
> Notice:
>
> (**) R128(0): Mode "1024x768": 78.5 MHz, 59.8 kHz, 74.8 Hz
> (II) R128(0): Modeline "1024x768" 78.50 1024 1033 1129 1312 768 769 772 800
> +hsync +vsync
> (**) R128(0): Mode "800x600": 62.4 MHz, 60.0 kHz, 94.9 Hz
> (II) R128(0): Modeline "800x600" 62.40 800 813 893 1040 600 601 604 632 +hsy
> nc +vsync
> (**) R128(0): Mode "640x480": 49.9 MHz, 60.0 kHz, 116.7 Hz
> (II) R128(0): Modeline "640x480" 49.90 640 653 717 832 480 481 484 514 +hsyn
> c +vsync
>
>
> That's 1024x768 ~75 Hz: pretty standard,
> 800x600 ~95 Hz: somewhat odd,
> 640x480 ~117 Hz: (!)
>
> At any other refresh rate, the iMac monitor is completely blank.
Looks like the monitor only groks horizontal frequencies around 60 kHz.
Section "Monitor" should be adapted accordingly, but that will just
cause the standard lower resolution modes to be rejected. The modelines
will still be needed for them.
> I know that 1024x768 generally always worked,
I was going to ask. :)
> but that I needed modelines for 800x600 and 640x480. Now that I look
> at my current XF86Config-4, recent versions of debconf has taken out
> all the modeline stuff. I guess UseFBDev teaches X about these modes?
No. Do the lower resolutions still work?
--
Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member / CS student, Free Software enthusiast
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