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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - freezes with dual monitors"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104513#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - freezes with dual monitors"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104513">bug 104513</a>
from <span class="vcard"><a class="email" href="mailto:blumens@fi.muni.cz" title="blumens@fi.muni.cz">blumens@fi.muni.cz</a>
</span></b>
<pre>In the meantime I have a bit more information.
First of all the hang also occurs if I run one of the monitors at a lower
resolution.
Also I had hangs where there was no drawing on one of the monitors.
Finally, I had hangs with dmesg output. In most of the cases one of the last
messages did refer to
[drm:intel_plane_atomic_calc_changes [i915]]
with various values. As example is
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_state_init [drm]] Allocated atomic
state ffff98b61bc9a400
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_get_crtc_state [drm]] Added
[CRTC:46:pipe B] ffff98b61f8cd000 state to ffff98b61bc9a400
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_get_plane_state [drm]] Added
[PLANE:37:plane 1B] ffff98b61bc1ec00 state to ffff98b61bc9a400
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_set_crtc_for_plane [drm]] Link
plane state ffff98b61bc1ec00 to [CRTC:46:pipe B]
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_set_fb_for_plane [drm]] Set
[FB:143] for plane state ffff98b61bc1ec00
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_check_only [drm]] checking
ffff98b61bc9a400
Jan 13 18:35:43 wasp kernel: [drm:intel_plane_atomic_calc_changes [i915]]
[CRTC:46:pipe B] has [PLANE:37:plane 1B] with fb 143
Jan 13 18:35:43 wasp kernel: [drm:intel_plane_atomic_calc_changes [i915]]
[PLANE:37:plane 1B] visible 1 -> 1, off 0, on 0, ms 0
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_nonblocking_commit [drm]]
committing ffff98b61bc9a400 nonblocking
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_state_init [drm]] Allocated atomic
state ffff98b61bc98c00
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_get_crtc_state [drm]] Added
[CRTC:36:pipe A] ffff98b61f8cf000 state to ffff98b61bc98c00
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_get_plane_state [drm]] Added
[PLANE:27:plane 1A] ffff98b61bc1e200 state to ffff98b61bc98c00
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_set_crtc_for_plane [drm]] Link
plane state ffff98b61bc1e200 to [CRTC:36:pipe A]
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_set_fb_for_plane [drm]] Set
[FB:71] for plane state ffff98b61bc1e200
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_check_only [drm]] checking
ffff98b61bc98c00
Jan 13 18:35:43 wasp kernel: [drm:intel_plane_atomic_calc_changes [i915]]
[CRTC:36:pipe A] has [PLANE:27:plane 1A] with fb 71
Jan 13 18:35:43 wasp kernel: [drm:intel_plane_atomic_calc_changes [i915]]
[PLANE:27:plane 1A] visible 1 -> 1, off 0, on 0, ms 0
Jan 13 18:35:43 wasp kernel: [drm:drm_atomic_nonblocking_commit [drm]]
committing ffff98b61bc98c00 nonblocking</pre>
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