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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - After S3 resume, kernel: [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:57:crtc-0] flip_done timed out"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110886#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - After S3 resume, kernel: [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:57:crtc-0] flip_done timed out"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110886">bug 110886</a>
from <span class="vcard"><a class="email" href="mailto:kai.heng.feng@canonical.com" title="Kai-Heng Feng <kai.heng.feng@canonical.com>"> <span class="fn">Kai-Heng Feng</span></a>
</span></b>
<pre><span class="quote">> Now it always shows PSP fail.</span >
I've dug up more info about this issue. It always times out in
psp_cmd_submit_buf(). Particularly, this code section:
while (*((unsigned int *)psp->fence_buf) != index) {
if (--timeout == 0)
break;
msleep(1);
}
psp->fence_buf stuck at 406 and index stuck at 407 and it eventually times out.
This _always_ happens at 27th time of S3, and freeze the whole system at 28th
S3 attempt.</pre>
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