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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
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<item>
            <title>[MC-5243] Option &#8220;Use VSync: Off&#8221; gets ignored after restart but is still set to &#8220;Off&#8221;</title>
                <link>https://bugs.mojang.com/browse/MC-5243</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;If setting the use VSync option to &lt;tt&gt;On&lt;/tt&gt; I have micro-lags (not really lags, more like frame rate issues) that are very annoying, and frames nailed to around 60 FPS. This is what VSync does, and I&#8217;m aware of that. Because of that I disabled VSync and instantly frame rate goes up to around 110 FPS which is fine on my machine in full-screen mode.&lt;/p&gt;

&lt;p&gt;After I quit Minecraft and restarted it in the evening again I noticed that micro-lags and overall &#8220;stuttering&#8221; behavior again. This behavior felt like the same I noticed with VSync enabled. I checked the configuration but &lt;tt&gt;Use VSync&lt;/tt&gt; was still &lt;tt&gt;Off&lt;/tt&gt;.&lt;/p&gt;

&lt;p&gt;After setting it to &lt;tt&gt;On&lt;/tt&gt;, and directly after that setting it to &lt;tt&gt;Off&lt;/tt&gt; again, frame rate goes up and the game acts normal again.&lt;/p&gt;

&lt;p&gt;This is reproducible: Whenever I enter Minecraft, it seems like &lt;tt&gt;Use VSync&lt;/tt&gt; is &lt;tt&gt;On&lt;/tt&gt; even if the option is set to &lt;tt&gt;Off&lt;/tt&gt; in video configuration menu. After setting it to &lt;tt&gt;On&lt;/tt&gt; and direct after that setting it to &lt;tt&gt;Off&lt;/tt&gt; again, it&#8217;s good.&lt;/p&gt;</description>
                <environment>$ uname -rms&lt;br/&gt;
Linux 3.6.10-1-ARCH x86_64&lt;br/&gt;
&lt;br/&gt;
$ java -version&lt;br/&gt;
java version &amp;quot;1.7.0_09&amp;quot;&lt;br/&gt;
OpenJDK Runtime Environment (IcedTea7 2.3.3) (ArchLinux build 7.u9_2.3.3-1-x86_64)&lt;br/&gt;
OpenJDK 64-Bit Server VM (build 23.2-b09, mixed mode)&lt;br/&gt;
&lt;br/&gt;
$ xrandr | grep &amp;#39; connected&amp;#39;&lt;br/&gt;
DVI-I-3 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm&lt;br/&gt;
&lt;br/&gt;
$ lspci -s 01:00.00&lt;br/&gt;
01:00.0 VGA compatible controller: NVIDIA Corporation G94 [GeForce 9600 GT] (rev a1)&lt;br/&gt;
&lt;br/&gt;
$ cat /proc/cpuinfo | grep model\ name | uniq&lt;br/&gt;
model name	: Intel(R) Core(TM)2 Duo CPU     E8400  @ 3.00GHz</environment>
        <key id="17821">MC-5243</key>
            <summary>Option &#8220;Use VSync: Off&#8221; gets ignored after restart but is still set to &#8220;Off&#8221;</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="dsohler">dirk (switched to Minetest)</reporter>
                        <labels>
                            <label>framerate</label>
                            <label>graphics</label>
                            <label>lag</label>
                            <label>options</label>
                    </labels>
                <created>Sun, 23 Dec 2012 03:50:56 +0100</created>
                <updated>Wed, 12 Aug 2020 22:01:59 +0200</updated>
                            <resolved>Sun, 23 Dec 2012 15:31:10 +0100</resolved>
                                    <version>Minecraft 1.4.6</version>
                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                            <comments>
                            <comment id="45429" author="aza6001" created="Tue, 12 Feb 2013 18:21:50 +0100"  >&lt;p&gt;I&apos;m getting the opposite problem when I start minecraft, Vsync is off but it says in the menu that its on (my moniter is only 60hz so I need it). Really annoying because the tearing is horrible.&lt;/p&gt;</comment>
                            <comment id="30443" author="dsohler" created="Mon, 24 Dec 2012 07:47:44 +0100"  >&lt;p&gt;Not duplicate, related. &lt;a href=&quot;https://bugs.mojang.com/browse/MC-715&quot; title=&quot;V-Sync in Window mode, settings not activated between sessions.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-715&quot;&gt;&lt;del&gt;MC-715&lt;/del&gt;&lt;/a&gt; is about windowed mode, this here is about fullscreen mode.&lt;/p&gt;</comment>
                            <comment id="30290" author="bljat" created="Sun, 23 Dec 2012 15:31:10 +0100"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-715&quot; title=&quot;V-Sync in Window mode, settings not activated between sessions.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-715&quot;&gt;&lt;del&gt;MC-715&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                    </comments>
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                            <issuelinktype id="10102">
                    <name>Duplicate</name>
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            <issuekey id="11993">MC-715</issuekey>
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