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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - display getting garbled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89857">89857</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>display getting garbled
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>sudipm.mukherjee@gmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>my display was getting garbled for a moment very frequently. it looked
like when the screen was getting refreshed then something was going
wrong.
git bisect gave <0f71979ab7fbd0c71c41c2798de3d33937915434> as the first bad
commit, and after reverting it now display is not having that problem.
lspci -k gives:
"VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
processor Graphics Controller (rev 09)
Subsystem: Foxconn International, Inc. Device 0d74
Kernel driver in use: i915"
This is my bisect log:
# bad: [e42391cd048809d903291d07f86ed3934ce138e9] Linux 4.0-rc6
# good: [b7392d2247cfe6771f95d256374f1a8e6a6f48d6] Linux 3.19-rc2
git bisect start 'v4.0-rc6' 'v3.19-rc2' '--' 'drivers/gpu/drm/i915/'
# good: [d2182a660808d9053a605e3ebc8c46a323ec6e5d] drm/i915: Don't register
HDMI connectors for eDP ports on VLV/CHV
git bisect good d2182a660808d9053a605e3ebc8c46a323ec6e5d
# bad: [36d21f4c557a2b18ed7c9d254060d4ca07a6c5c7] drm/i915/dsi: remove
unnecessary dsi device callbacks
git bisect bad 36d21f4c557a2b18ed7c9d254060d4ca07a6c5c7
# good: [72f95afa5faaf899f7344879b6ccd5f0cb271b28] drm/i915: Removed duplicate
members from submit_request
git bisect good 72f95afa5faaf899f7344879b6ccd5f0cb271b28
# good: [2844a9214759901f382086644842e39ad6f7d894] drm/i915: Use pipe_name() in
the get_plane_config() functions
git bisect good 2844a9214759901f382086644842e39ad6f7d894
# bad: [1b842c89bd8eb0e9619e1aba071c9a5529b7a179] drm/i915: Fix kzalloc()
smatch warnings in get_initial_plane_config()
git bisect bad 1b842c89bd8eb0e9619e1aba071c9a5529b7a179
# good: [8d360dffd6d8634868e433128d5178bea14cc42c] drm/i915: Specify bsd rings
through exec flag
git bisect good 8d360dffd6d8634868e433128d5178bea14cc42c
# good: [1197b4f230fb7c8fe3a9b549596fe130b09a0db2] drm/i915: Balance context
pinning on reset cleanup
git bisect good 1197b4f230fb7c8fe3a9b549596fe130b09a0db2
# bad: [0f71979ab7fbd0c71c41c2798de3d33937915434] drm/i915: Performed deferred
clflush inside set-cache-level
git bisect bad 0f71979ab7fbd0c71c41c2798de3d33937915434
# good: [a7cbedec8317a5cacecb567674fdbc1c3fb22de8] drm/i915: Rename unpin_count
to pin_count
git bisect good a7cbedec8317a5cacecb567674fdbc1c3fb22de8
please let me know if you need any more information.
Regards
Sudip</pre>
</div>
</p>
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