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<body><span class="vcard"><a class="email" href="mailto:manikulin@gmail.com" title="max <manikulin@gmail.com>"> <span class="fn">max</span></a>
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<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - [GM965/GL960] blank screen after switching between VGA1 and LVDS1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=49688">bug 49688</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEEDINFO
</td>
<td>REOPENED
</td>
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - [GM965/GL960] blank screen after switching between VGA1 and LVDS1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=49688#c43">Comment # 43</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - [GM965/GL960] blank screen after switching between VGA1 and LVDS1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=49688">bug 49688</a>
from <span class="vcard"><a class="email" href="mailto:manikulin@gmail.com" title="max <manikulin@gmail.com>"> <span class="fn">max</span></a>
</span></b>
<pre>3.12.0-994-generic #201311220431 SMP Fri Nov 22 09:32:00 UTC 2013 x86_64 x86_64
x86_64 GNU/Linux
(ubuntu mainline drm-intel-nightly *x86_64*)
Ubuntu-13.10
The problem with dark screen persists.
Many warning in dmesg
[ 22.266431] [drm] initialized overlay support
[ 22.293106] fbcon: inteldrmfb (fb0) is primary device
[ 22.316061] ------------[ cut here ]------------
[ 22.316120] WARNING: CPU: 0 PID: 363 at
/home/apw/COD/linux/drivers/gpu/drm/i
915/intel_panel.c:792 intel_panel_enable_backlight+0xe0/0xf0 [i915]()
[ 22.316145] Modules linked in: ath9k_hw snd_seq_device bnep snd_timer rfcomm
ath microcode(+) snd mac80211 i915(+) btusb cfg80211 drm_kms_helper bluetooth
ps
mouse drm serio_raw soundcore lp parport asus_laptop lpc_ich i2c_algo_bit
sparse
_keymap input_polldev mac_hid video hid_a4tech usbhid hid ahci libahci r8169
mii
[ 22.316149] CPU: 0 PID: 363 Comm: systemd-udevd Not tainted
3.12.0-994-generi
c #201311220431
[ 22.316151] Hardware name: ASUSTeK Computer Inc. F80L
/F80L , BIOS 206 08/06/2008
[ 22.316155] 0000000000000318 ffff88007a0bd468 ffffffff81742f52
0000000000000
086
[ 22.316158] 0000000000000000 ffff88007a0bd4a8 ffffffff8106783c
0000000000000
282
[ 22.316160] ffff880078d41800 ffff88007b238000 ffff88007b23a19c
0000000000000
246
[ 22.316161] Call Trace:
[ 22.316171] [<ffffffff81742f52>] dump_stack+0x46/0x58
[ 22.316175] [<ffffffff8106783c>] warn_slowpath_common+0x8c/0xc0
<a href="http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/2013-11-16-trusty/">http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/2013-11-16-trusty/</a>
*i386* + kubuntu 13.04
The problem with dark screen persists (mainly with VGA1)
Many warnings with call traces in dmesg.
After several switches LVDS1<->VGA1 X server failed, image in text console did
not update (frozen).
So the bug has not been fixed.
The recent kernel have serious problems with GM965/GL960.
Unfortunately it is unlikely that I will be able to file bugs and test fixes in
the near future.</pre>
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