Originally Posted by Wo0zy
You can either try using Powerstrip to adjust the frequency or use DTDCalc. I believe Dave (DPlettner) has had some success with Powerstrip but many claim that 24Hz just isn't smooth enough and revert to 60 (or 50 here in PAL land). At least now you're not using the 15.8 drivers you can experiment
I use Powerstrip to tweak the timing of 1920x1080 from 60.121 Hz (the Intel driver default) to 59.844 Hz. Ideally, I would like 59.94 Hz, but PS will not let me get any closer.
Even though my HP DLP is a native 59.94 Hz display, it will accept a 24 Hz 1080p input. I just tried setting the refresh rate to 24Hz using the PS predefined timing for 1920x1080 @ 24 Hz, and it worked fine with the Vista 15.8 drivers. Here are the PS timing details:
PowerStrip timing parameters:
Generic timing details for 1920x1080:
HFP=640 HSW=48 HBP=144 kHz=27 VFP=4 VSW=5 VBP=36 Hz=24
VESA detailed timing:
PClk=74.24 H.Active=1920 H.Blank=832 H.Offset=624 HSW=48 V.Active=1080 V.Blank=45 V.Offset=4 VSW=5
Linux modeline parameters:
"1920x1080" 74.240 1920 2560 2608 2752 1080 1084 1089 1125 +hsync +vsync
Powerstrip is free to try, so anyone that wants 24 Hz with the 15.8 drivers should give it a test.
Edit: By the way, I highly recommend that you install UltraVNC on the G35 and another PC on your network. It makes it a lot easier to tweak timings. If you select a timing that causes your TV to lose sync, you can fiddle around with Powerstrip from the other PC using UltraVNC until you regain sync. UltraVNC is free.