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<blockquote data-quote="mcmonkey" data-source="post: 739646" data-attributes="member: 111048">After changing the refresh rate I get a cpu load up to 100% while playing h.264 videos (Iam not using an external player) and they are lagging very heavy. I have the same problem with the mpc-hc.The dynamic refresh rate change is disabled. Until now I change the refreshrate via hotkey from the ccc. In the future I want to do this with the dynamic refresh rate changer from mediaportal. After rebooting mediaportal the playback is smooth (cpu load about 0-10%).My System:Silverstone GD02-MTAsus M4A88T-M/USB3 (AMD 880G Chip incl. Radeon HD 4250)AMD Athlon II X2 2604x 1GB Kingston Value DDR3ATI Radeon HD 5750Samsung SpinPont F3 1TB 5200rpmWin XP Pro 32Bit-------h.264 decoder: ffdshow DXVA (hardware acceleration activated in config)sound decoder: ffdshowsound renderer: ATI HD Audio (Radeon HD 5750)Iam using 2 displays:1) Epson TW3200 Projector (1080p) -&gt; connected via HDMI to my AVR and the AVR is connected via HDMI to the Radeon 57502) iMon 4.3&quot; TouchScreen from the Silverstone (800x600@60Hz) -&gt; connected via D-Sub to the Radeon 4250 from the Mainboard !!I want to change the refreshrate because the projector has a pulldown feature I dont wanna miss - so I wont using 60Hz all the time.Has someone an idea why this happens?</blockquote>

[QUOTE="mcmonkey, post: 739646, member: 111048"] After changing the refresh rate I get a cpu load up to 100% while playing h.264 videos (Iam not using an external player) and they are lagging very heavy. I have the same problem with the mpc-hc. The dynamic refresh rate change is disabled. Until now I change the refreshrate via hotkey from the ccc. In the future I want to do this with the dynamic refresh rate changer from mediaportal. After rebooting mediaportal the playback is smooth (cpu load about 0-10%). My System: Silverstone GD02-MT Asus M4A88T-M/USB3 (AMD 880G Chip incl. Radeon HD 4250) AMD Athlon II X2 260 4x 1GB Kingston Value DDR3 ATI Radeon HD 5750 Samsung SpinPont F3 1TB 5200rpm Win XP Pro 32Bit ------- h.264 decoder: ffdshow DXVA (hardware acceleration activated in config) sound decoder: ffdshow sound renderer: ATI HD Audio (Radeon HD 5750) Iam using 2 displays: 1) Epson TW3200 Projector (1080p) -> connected via HDMI to my AVR and the AVR is connected via HDMI to the Radeon 5750 2) iMon 4.3" TouchScreen from the Silverstone (800x600@60Hz) -> connected via D-Sub to the Radeon 4250 from the Mainboard !! I want to change the refreshrate because the projector has a pulldown feature I dont wanna miss - so I wont using 60Hz all the time. Has someone an idea why this happens? [/QUOTE]

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