<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - eDP laptop display flicker, Intel 915"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98583">98583</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>eDP laptop display flicker, Intel 915
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</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>nuorama@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>Created <span class=""><a href="attachment.cgi?id=127742" name="attach_127742" title="/sys/kernel/debug/dri/0/i915_vbt">attachment 127742</a> <a href="attachment.cgi?id=127742&action=edit" title="/sys/kernel/debug/dri/0/i915_vbt">[details]</a></span>
/sys/kernel/debug/dri/0/i915_vbt
Following upgrade from Debian kernel 4.3 to 4.8 the laptop's display started to
flicker every couple of minutes. It starts right after the native resolution is
set during boot, continues for 2-3 minutes, then stops for other 3-5 minutes.
This the repeats continuously. This flicker is especially obvious on darker
portions of the displayed image, while on red/orange/white I can't seem to
notice it.
Changing resolution in System Settings has no effect, but changing the refresh
rate (options are: auto, 59.93, 59.95, 60.01) does stop it sometimes. The
external display doesn't flicker.
Details:
Computer: 20C60073RI (LENOVO_MT_20C6_BU_Think_FM_ThinkPad Edge E540)
uname -a
Linux debian 4.8.0-1-amd64 #1 SMP Debian 4.8.5-1 (2016-10-28) x86_64 GNU/Linux
xrandr:
Screen 0: minimum 320 x 200, current 3968 x 1152, maximum 8192 x 8192
eDP-1 connected 1920x1080+2048+0 (normal left inverted right x axis y axis)
344mm x 194mm
1920x1080 60.01 + 59.93*
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1280x1024 60.02
1440x900 59.89
1280x960 60.00
1360x768 59.80 59.96
1152x864 60.00
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
960x600 60.00
960x540 59.99
800x600 60.00 60.32 56.25
840x525 60.01 59.88
800x512 60.17
700x525 59.98
640x512 60.02
720x450 59.89
640x480 60.00 59.94
680x384 59.80 59.96
576x432 60.06
512x384 60.00
400x300 60.32 56.34
320x240 60.05
VGA-1 connected primary 2048x1152+0+0 (normal left inverted right x axis y
axis) 510mm x 287mm
2048x1152 59.91*+
1680x1050 59.95
1280x1024 60.02
1440x900 59.89
1280x960 60.00
1280x800 59.81
1024x768 60.00
800x600 60.32 56.25
640x480 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
lsmod | grep -i 'video\|i915'
uvcvideo 90112 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_core 36864 2 uvcvideo,videobuf2_v4l2
videodev 176128 3 uvcvideo,videobuf2_core,videobuf2_v4l2
media 40960 2 uvcvideo,videodev
i915 1282048 58
drm_kms_helper 155648 1 i915
drm 360448 18 i915,drm_kms_helper
i2c_algo_bit 16384 1 i915
video 40960 2 thinkpad_acpi,i915
button 16384 1 i915
usbcore 249856 7
uvcvideo,usbhid,ehci_hcd,xhci_pci,btusb,xhci_hcd,ehci_pci
Also attached i915_opregion and i915_vbt, as I see was requested in similar bug
#91393</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are the assignee for the bug.</li>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>