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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-3463] Minecraft Linux fullscreen issue</title>
                <link>https://bugs.mojang.com/browse/MC-3463</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;When switching in and out of fullscreen mode, using the fullscreen button in the options menu and pressing F11, the game creates a weird graphic issue over the entire screen and renders the game unplayable. You can&apos;t exit from the game nor try to get it working again. Everytime it has happened, I have to restart my computer manually. It happens with or without a custom texture pack, and both on singleplayer and multiplayer.&lt;/p&gt;</description>
                <environment>Ubuntu 12.04 64Bit, OpenJDK 6 64bit.</environment>
        <key id="15503">MC-3463</key>
            <summary>Minecraft Linux fullscreen issue</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="gamerfiend">Tyler Jessilynn</reporter>
                        <labels>
                            <label>ubuntu</label>
                    </labels>
                <created>Mon, 19 Nov 2012 05:34:18 +0100</created>
                <updated>Tue, 5 May 2015 06:40:30 +0200</updated>
                            <resolved>Sat, 29 Jun 2013 14:54:09 +0200</resolved>
                                    <version>Minecraft 1.4.4</version>
                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="29249" author="bljat" created="Tue, 18 Dec 2012 04:34:07 +0100"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-2067&quot; title=&quot;Switching to fullscreen does not work when running under Ubuntu 12.10&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-2067&quot;&gt;&lt;del&gt;MC-2067&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="23467" author="bmenrigh" created="Mon, 19 Nov 2012 23:37:15 +0100"  >&lt;p&gt;A few troubleshooting suggestions:&lt;/p&gt;

&lt;p&gt;Can you press CTRL+ALT+F1 to switch to a virtual terminal?  If not, can you start an SSH server and try connecting to your frozen machine remotely?&lt;/p&gt;

&lt;p&gt;If you can do either of these then you should be able to get a stack trace of the Java process for troubleshooting.  Use &quot;jstack&quot;:&lt;/p&gt;

&lt;p&gt;brenrigh@lambda ~ $ jstack --help&lt;br/&gt;
Usage:&lt;br/&gt;
    jstack &lt;span class=&quot;error&quot;&gt;&amp;#91;-l&amp;#93;&lt;/span&gt; &amp;lt;pid&amp;gt;&lt;br/&gt;
        (to connect to running process)&lt;br/&gt;
    jstack -F &lt;span class=&quot;error&quot;&gt;&amp;#91;-m&amp;#93;&lt;/span&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;-l&amp;#93;&lt;/span&gt; &amp;lt;pid&amp;gt;&lt;br/&gt;
        (to connect to a hung process)&lt;br/&gt;
    jstack &lt;span class=&quot;error&quot;&gt;&amp;#91;-m&amp;#93;&lt;/span&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;-l&amp;#93;&lt;/span&gt; &amp;lt;executable&amp;gt; &amp;lt;core&amp;gt;&lt;br/&gt;
        (to connect to a core file)&lt;br/&gt;
    jstack &lt;span class=&quot;error&quot;&gt;&amp;#91;-m&amp;#93;&lt;/span&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;-l&amp;#93;&lt;/span&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;server_id@&amp;#93;&lt;/span&gt;&amp;lt;remote server IP or hostname&amp;gt;&lt;br/&gt;
        (to connect to a remote debug server)&lt;/p&gt;

&lt;p&gt;Options:&lt;br/&gt;
    -F  to force a thread dump. Use when jstack &amp;lt;pid&amp;gt; does not respond (process is hung)&lt;br/&gt;
    -m  to print both java and native frames (mixed mode)&lt;br/&gt;
    -l  long listing. Prints additional information about locks&lt;br/&gt;
    -h or -help to print this help message&lt;/p&gt;

&lt;p&gt;You should also be able to kill the process, or kill X and recover your machine without rebooting.  Of course if your kernel is hung then none of these options will work.  In that case, try enabling the Magic SysReq key.  Take a look at the documentation in /usr/src/linux/Documentation/sysrq.txt&lt;br/&gt;
You can probably dump a kernel stack trace which will help if this is related to a video card driver issue.&lt;/p&gt;

&lt;p&gt;If not, at least the Magic SysReq will let you try to sync your disks and remount everything RO before rebooting.&lt;/p&gt;
</comment>
                            <comment id="23219" author="cubethethird" created="Mon, 19 Nov 2012 07:14:52 +0100"  >&lt;p&gt;Can you attach the crash report? Try updating your java, as your version is outdated. What are your system specs?&lt;/p&gt;</comment>
                    </comments>
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