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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - display corruption on 945GME on 4.3.0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92879#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - display corruption on 945GME on 4.3.0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92879">bug 92879</a>
from <span class="vcard"><a class="email" href="mailto:james@nurealm.net" title="James <james@nurealm.net>"> <span class="fn">James</span></a>
</span></b>
<pre>I am also seeing display corruption, on an Acer Aspire 3680, running 32b, where
lspci gives:
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML
Express Integrated Graphics Controller (rev 03)
On a 1280x800 display, the top two and bottom two lines appear normal. In the
corrupted area, successive scan lines are displaced from the correct position,
from the left to about 4/5 of the width, followed by normal text displaced
vertically.
This is still present in linux 4.3.3. In the 4.3.0 kernel, Xorg would still
produce a normal display, but not with 4.3.3, except that the mouse cursor is
displayed properly.
WARNING: CPU: 0 PID: 48 at drivers/gpu/drm/i915/intel_display.c:1389
assert_planes_disabled+0x100/0x140 [i915]()
plane B assertion failure, should be off on pipe B but is still active
...
WARNING: CPU: 0 PID: 38 at drivers/gpu/drm/drm_atomic.c:491
drm_atomic_check_only+0x4bf/0x5a0 [drm]()
...
WARNING: CPU: 0 PID: 38 at drivers/gpu/drm/i915/intel_fbdev.c:400
intel_fb_initial_config+0x2dc/0x5f0 [i915]()
WARN_ON(!encoder->crtc)
...
WARNING: CPU: 0 PID: 38 at drivers/gpu/drm/i915/intel_display.c:11599
intel_plane_atomic_calc_changes+0x51c/0x690 [i915]()
WARN_ON(was_visible)
...
WARNING: CPU: 0 PID: 38 at drivers/gpu/drm/drm_atomic_helper.c:674
drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]()
...
(first warning repeats)</pre>
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