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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - After archlinux system update switching on both of internal and external graphics card does not work anymore (vgaswitcheroo)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87649#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - After archlinux system update switching on both of internal and external graphics card does not work anymore (vgaswitcheroo)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87649">bug 87649</a>
from <span class="vcard"><a class="email" href="mailto:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> <span class="fn">Imre Deak</span></a>
</span></b>
<pre>(In reply to gofabian from <a href="show_bug.cgi?id=87649#c7">comment #7</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=112034" name="attach_112034" title="dmesg v3.19rc2">attachment 112034</a> <a href="attachment.cgi?id=112034&action=edit" title="dmesg v3.19rc2">[details]</a></span>
> dmesg v3.19rc2</span >
Based on the "vga_switcheroo: client x refused switch" message I assume some
user space app keep the relevant device nodes open and switching isn't possible
at that time. Did you make sure all interesting apps are stopped (desktop,
pulse audio etc.) before switching?</pre>
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