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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#c6">Comment # 6</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:gofabian@posteo.de" title="gofabian@posteo.de">gofabian@posteo.de</a>
</span></b>
<pre>I tried the kernel version 3.19.0-031900rc2-generic. With this kernel I cannot
switch the hardware multiplexer via vga_switcheroo to the external card at all.
(A further difference is that the "Reverse PRIME" feature is more stable now.)
I attached the dmesg output.</pre>
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