From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on sa.int.altlinux.org X-Spam-Level: X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00, DNS_FROM_OPENWHOIS, SPF_PASS autolearn=no version=3.2.5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1310098129; bh=wp3Vef/QVORqjPj/fs06YuvqtYASg/aIYJSawQYS6G8=; h=Message-ID:Date:From:MIME-Version:To:Subject:References: In-Reply-To:Content-Type:Content-Transfer-Encoding; b=s8m7JqK4BtQ0oZFe1618ydOOgcBKD2PpCwFrPRICL5D1vSs6kTrvNoPRH1PVO6j/0 Xos9+jybyzSu+EGiaKPNocIRjSZ+Qt1lbD9B2kGuWACRCkfLqSB6HFV4rpv6OIeORG 7llH1/FSOb1W1m7QQKAjG48HckYbfED/KiZZ6iao= Message-ID: <4E1682D0.9060407@yandex.ru> Date: Fri, 08 Jul 2011 07:08:48 +0300 From: Speccyfighter User-Agent: Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: community@lists.altlinux.org References: <201107080715.44720.vladimir.didenko@gmail.com> <4E1678C9.3090407@yandex.ru> <201107080736.07632.vladimir.didenko@gmail.com> In-Reply-To: <201107080736.07632.vladimir.didenko@gmail.com> Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: 8bit X-Yandex-Spam: 1 Subject: Re: [Comm] =?koi8-r?b?89XE2MLBIOLSwc7ewSA1LjE=?= X-BeenThere: community@lists.altlinux.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: ALT Linux Community general discussions List-Id: ALT Linux Community general discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Jul 2011 04:08:54 -0000 Archived-At: List-Archive: List-Post: 08.07.2011 06:36, Vladimir Didenko пишет: > В сообщении от 8 июля 2011 07:26:01 автор Speccyfighter написал: >> 08.07.2011 06:15, Vladimir Didenko пишет: >>> Возможно, в Debian vsync по умолчанию выключен. >> Там xorg.conf вообще отсутствует. > И что? Если бы vsync был включен, то FPS совпадал с частотой обновления > монитора - в вашем случае с 236. Как-то я сомневаюсь, что экран EeePC > обновляется с частотой 236 Hz. > Конечно. Оно и надо. И синхронизировать есть из чего. Но тут речь о 30-ти - 40-ка fps на eeepc А это уже не есть хорошо *Refresh Rate*: The rate at which your video card is sending complete screens from its frame buffer memory to your monitor, and the corresponding rate at which the monitor refreshes the whole image. 60hz = 60 complete refreshes per second. *FPS*: Frames Per Second, the rate at which your video card is drawing frames to its frame buffer. If the FPS is higher than than the refresh rate, then the extra frames are lost and tearing could occur. *Tearing:* A screen artifact characterized by the display updating the screen to a portion of a new frame and a portion of an old frame instead of the entire new frame. The result can be best identified by jagged horizontal bands during scenes of constant diagonal motion. *Vertical Sync:* The act of synchronizing the FPS rate to a multiple of the refresh rate. For instance, if the video card can output 79 FPS but the refresh rate is 60hz, the video card will time the drawing of its completed frames to the frame buffer to exactly 60 times a second. If the video card is only capable of outputting 50 FPS and the refresh rate is 60hz, the video card will either stagger the output to span multiple monitor refresh cycles or it will reduce the frame rate to 30fps, so that each frame is sent to the monitor twice. Note that the refresh rate stays 60hz in this scenario, but the viewer will only see 30 unique frames every second. http://knol.google.com/k/refresh-rate-frames-per-second-and-response-times-in-lcd-and-crt-technologies#