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<span>ps: </span></div><div><span>I print the status the xserver replies while executing xwininfo( <em>xcb_grab_pointer_reply</em> function returns). And the value of status is 1.
</span></div><div><span>I check it at <a href="https://gitlab.freedesktop.org/xorg/proto/xcbproto/-/blob/1388374c7149114888a6a5cd6e9bf6ad4b42adf8/src/xproto.xml#L2573-2579:" _src="https://gitlab.freedesktop.org/xorg/proto/xcbproto/-/blob/1388374c7149114888a6a5cd6e9bf6ad4b42adf8/src/xproto.xml#L2573-2579:">https://gitlab.freedesktop.org/xorg/proto/xcbproto/-/blob/1388374c7149114888a6a5cd6e9bf6ad4b42adf8/src/xproto.xml#L2573-2579</a> :</span></div><div><pre class="code highlight" lang="xml"><span id="LC2573" lang="xml" data-testid="content" class="line hll"><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">enum</span><span class="hljs-tag"> </span><span class="hljs-attr">name</span><span class="hljs-tag">=</span><span class="hljs-string">"GrabStatus"</span><span class="hljs-tag">></span></span><span class=""></span></span>
<span id="LC2574" lang="xml" data-testid="content" class="line hll"><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">item</span><span class="hljs-tag"> </span><span class="hljs-attr">name</span><span class="hljs-tag">=</span><span class="hljs-string">"Success"</span><span class="hljs-tag">></span></span><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="">0</span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">item</span><span class="hljs-tag">></span></span><span class=""></span></span>
<span id="LC2575" lang="xml" data-testid="content" class="line hll"><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">item</span><span class="hljs-tag"> </span><span class="hljs-attr">name</span><span class="hljs-tag">=</span><span class="hljs-string">"AlreadyGrabbed"</span><span class="hljs-tag">></span></span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="">1</span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">item</span><span class="hljs-tag">></span></span><span class=""></span></span>
<span id="LC2576" lang="xml" data-testid="content" class="line hll"><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">item</span><span class="hljs-tag"> </span><span class="hljs-attr">name</span><span class="hljs-tag">=</span><span class="hljs-string">"InvalidTime"</span><span class="hljs-tag">></span></span><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="">2</span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">item</span><span class="hljs-tag">></span></span><span class=""></span></span>
<span id="LC2577" lang="xml" data-testid="content" class="line hll"><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">item</span><span class="hljs-tag"> </span><span class="hljs-attr">name</span><span class="hljs-tag">=</span><span class="hljs-string">"NotViewable"</span><span class="hljs-tag">></span></span><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="">3</span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">item</span><span class="hljs-tag">></span></span><span class=""></span></span>
<span id="LC2578" lang="xml" data-testid="content" class="line hll"><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">item</span><span class="hljs-tag"> </span><span class="hljs-attr">name</span><span class="hljs-tag">=</span><span class="hljs-string">"Frozen"</span><span class="hljs-tag">></span></span><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"><</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="">4</span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">value</span><span class="hljs-tag">></span></span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">item</span><span class="hljs-tag">></span></span><span class=""></span></span>
<span id="LC2579" lang="xml" data-testid="content" class="line hll"><span class=""> </span><span class="hljs-tag"><span class="hljs-tag"></</span><span class="hljs-name">enum</span><span class="hljs-tag">></span></span></span>
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<span>so the status is AlreadyGrabbed !!!
</span></div><div><span>then is seems i need to debug the xserver finding out why there is no existed active grab but status is </span><span style="line-height: 22.4px;">AlreadyGrabbed. Where the part of code about xserver?</span></div>
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<div style="font-size:12px;line-height:1.5;word-break:break-all;margin-left:10px;margin-right:10px">On <span class="mail-date">1/5/2024 16:10</span>，<a class="mail-to" style="text-decoration:none;color:#2a83f2;" href="mailto:starcold14@gmail.com">starcold14<starcold14@gmail.com></a> wrote： </div>
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<div style="line-height: 22.4px;">Hi, alan & Uli & xcb friends,</div><div style="line-height: 22.4px;"><br></div><div style="line-height: 22.4px;">I was trying to reproduce my problem, and today it comes.</div><div style="line-height: 22.4px;">When the problem happened, I typed "xdotool key XF86LogGrabInfo" twice.</div><div style="line-height: 22.4px;">And the result seems no "active grab" exists :</div><div style="line-height: 22.4px;">......</div><div style="line-height: 22.4px;">[ 3094.823] (II) Printing all currently active device grabs:<br>[ 3094.823] (II) End list of active device grabs</div><div style="line-height: 22.4px;">......</div><div style="line-height: 22.4px;"><br></div><div style="line-height: 22.4px;">How it be possible? QAQ</div><div style="line-height: 22.4px;">Since we think it could be FROZEN or ALREADYGRABED.</div><div style="line-height: 22.4px;"><br></div><div style="line-height: 22.4px;">The attachment is Xorg.0.log</div><div style="line-height: 22.4px;"><br></div><div style="line-height: 22.4px;">Yours sincerely.</div><span>
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<div style="font-size:12px;line-height:1.5;word-break:break-all;margin-left:10px;margin-right:10px">On <span class="mail-date">1/4/2024 01:45</span>，<a class="mail-to" style="text-decoration:none;color:#2a83f2;" href="mailto:alan.coopersmith@oracle.com">Alan Coopersmith<alan.coopersmith@oracle.com></a> wrote： </div>
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On 1/2/24 23:56, Uli Schlachter wrote:<br> <blockquote class="mmbqc1">Sadly, I have no good suggestion on what to do about this random grab or <br> how to figure out which program grabbed the mouse.<br></blockquote><br>Xorg allows defining a hotkey to log current grabs to the log file - you<br>can trigger it via the command line with:<br> xdotool key "XF86LogGrabInfo"<br><br>Google finds some pages with additional tips on using it, such as:<br>https://thesynack.com/posts/hotkeys-grabbed/<br>https://unix.stackexchange.com/questions/23164/manipulating-x-key-and-pointer-grabs-on-the-command-line<br>https://gitlab.freedesktop.org/xorg/xserver/-/commit/7d2543a3cb3089241982ce4f8984fd723d5312a1<br><br>-- <br> -Alan Coopersmith- alan.coopersmith@oracle.com<br> Oracle Solaris Engineering - https://blogs.oracle.com/solaris<br><br></blockquote><!--😀-->
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