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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - The native screen(eDP) would be black when rotate the external screen to inverted from normal"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108764#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - The native screen(eDP) would be black when rotate the external screen to inverted from normal"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108764">bug 108764</a>
from <span class="vcard"><a class="email" href="mailto:quanxian.wang@intel.com" title="qwang13 <quanxian.wang@intel.com>"> <span class="fn">qwang13</span></a>
</span></b>
<pre>(In reply to Jani Nikula from <a href="show_bug.cgi?id=108764#c11">comment #11</a>)
<span class="quote">> Reopening, I don't think we have conclusive evidence the problem is in
> userspace, and even if the problem were in userspace, we'd need to identify
> where in the stack and reassign.
>
> qwang13, please elaborate on the issue. So do I understand correctly that:
>
> 1) The *external* DP/HDMI display works fine with all rotation options.
>
> 2) The *embedded* eDP goes black on some *external* DP/HDMI rotation options.
>
> The attached logs are insufficient. Please add drm.debug=0xf module
> parameter, probably also need log_buf_len=4M or similar because that debug
> option is going to be verbose, reboot, reproduce, attach dmesg all the way
> from boot.</span >
1) yes.
2)
a.without external, eDP works fine
b.with external DP/HMDI, eDP will black on *external* DP/HDMI rotation options.
-only inverted, others are fine.</pre>
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