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List: freedesktop-xorg
Subject: Re: No video after resume from suspend
From: Markus Strobl <mstrobl2 () yahoo ! com>
Date: 2016-04-14 16:59:00
Message-ID: 1232884357.494584.1460653140931.JavaMail.yahoo () mail ! yahoo ! com
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I haven't had the exact problem you're having, but I have seen similar issues with \
suspend. In my case the system would lock up when going to suspend, requiring a power \
cycle to come back. Turned out to be caused by multiple frame buffer drivers being \
loaded at the same time. I had uvesafb as well as efifb loading at boot. The system \
worked fine until trying to suspend. I removed uvesafb from the kernel and everything \
worked fine. Just a thought,Markus
From: "russell.poffenberger@xcerra.com" <russell.poffenberger@xcerra.com>
To: xorg@lists.x.org
Sent: Thursday, April 14, 2016 11:29 AM
Subject: Re: No video after resume from suspend
Thanks for the info Thomas.
ctrl+alt+f2 does not appear to do anything.I see no visible effects when the display \
is running normally (before suspend)nor does it wake the screen after resuming from \
suspend. Failsafe mode also fails to restorethe display when resuming.
One odd note I found is that I havesome difficulty with hibernate also. If I attempt \
to hibernate this system,it takes about 2 minutes for it to actually go into \
hibernation. I havetried many things to see what is going on including booting with \
parameterssuch as ignore_loglevel, initcall_debug, no_console_suspend, etc. but \
thereare no messages indicating why it takes so long to hibernate. The funny thing is \
that if I suspend/resume,then rlogin to the machine and invoke hibernate, it goes \
into hibernationin about 10 seconds. Booting and restoring from hibernation restores \
everything(including the screen) right where it ought to be.
My workaround for now is to make a scriptwith the following commands
rtcwake -m mem -s 5;systemctl hibernate
Although it takes longer to recoverthan suspend/resume, it is within acceptable \
parameters.
-----------------------------------------------------
Russ Poffenberger | System Architecture Group
Phone: +1 / 408 / 635-6049
russell.poffenberger@xcerra.com
Xcerra Corporation, LTX/Credence Division
1355 California Circle
Milpitas, CA 95035, USA
-----------------------------------------------------
> From: | Thomas Lübking <thomas.luebking@gmx.de> |
> To: | russell.poffenberger@xcerra.com |
> Date: | 04/14/2016 03:47 AM |
> Subject: | Re: No video after resume from suspend |
On Wed, Apr 13, 2016 at 05:44:27PM -0700, russell.poffenberger@xcerra.comwrote:
> When I put the system to sleep, after resuming from sleep, the system
> comes alive (I can rlogin fine), but there is no video signal, as reported
> by the monitor and a blank display. No amount of pressing keys or moving
> the mouse have any effect.
Can you switch to another VT (ctrl+alt+f2) and does the framebuffer
change get you a signal?
> Is there something I can send or do to wake the video up, at leastto try
> and understand what is not resuming properly?
No idea whether that's related, but at least the nvidia blob has/d trouble
moving data between VRAM and RAM across STR.
Are you running gnome and does it also happen with a failsafe login?
(Anything that's not a GL composited DE)
Cheers,
Thomas
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[Attachment #5 (text/html)]
<html><head></head><body><div style="color:#000; background-color:#fff; \
font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, \
sans-serif;font-size:16px"><div dir="ltr">I haven't had the exact problem you're \
having, but I have seen similar issues with suspend. In my case the system would lock \
up when going to suspend, requiring a power cycle to come back.</div><div \
id="yui_3_16_0_ym19_1_1460485261134_52627" dir="ltr"><br></div><div \
id="yui_3_16_0_ym19_1_1460485261134_52628" dir="ltr">Turned out to be caused by \
multiple frame buffer drivers being loaded at the same time. I had uvesafb as well as \
efifb loading at boot. The system worked fine until trying to suspend. I removed \
uvesafb from the kernel and everything worked fine.<br></div><div \
id="yui_3_16_0_ym19_1_1460485261134_52614"><span></span></div><div \
id="yui_3_16_0_ym19_1_1460485261134_52559" class="qtdSeparateBR"><div \
id="yui_3_16_0_ym19_1_1460485261134_52697">Just a thought,</div><div \
id="yui_3_16_0_ym19_1_1460485261134_52698">Markus<br></div><br></div><div \
style="display: block;" id="yui_3_16_0_ym19_1_1460485261134_52504" \
class="yahoo_quoted"> <blockquote id="yui_3_16_0_ym19_1_1460485261134_52503" \
style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; \
padding-left: 5px;"> <div id="yui_3_16_0_ym19_1_1460485261134_52502" \
style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, \
sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1460485261134_52501" \
style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, \
sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1460485261134_52543" \
dir="ltr"> <font id="yui_3_16_0_ym19_1_1460485261134_52542" face="Arial" size="2"> \
<hr size="1"> <b><span style="font-weight:bold;">From:</span></b> \
"russell.poffenberger@xcerra.com" <russell.poffenberger@xcerra.com><br> \
<b><span style="font-weight: bold;">To:</span></b> xorg@lists.x.org <br> <b><span \
style="font-weight: bold;">Sent:</span></b> Thursday, April 14, 2016 11:29 AM<br> \
<b><span style="font-weight: bold;">Subject:</span></b> Re: No video after resume \
from suspend<br> </font> </div> <div id="yui_3_16_0_ym19_1_1460485261134_52500" \
class="y_msg_container"><br><div id="yiv7220117187"> <br><font face="sans-serif" \
size="2">Thanks for the info Thomas.</font> <br>
<br><font id="yui_3_16_0_ym19_1_1460485261134_52541" face="sans-serif" \
size="2">ctrl+alt+f2 does not appear to do anything. I see no visible effects when \
the display is running normally (before suspend) nor does it wake the screen after \
resuming from suspend.</font> <br><font id="yui_3_16_0_ym19_1_1460485261134_52699" \
face="sans-serif" size="2">Failsafe mode also fails to restore the display when \
resuming.</font> <br><font id="yui_3_16_0_ym19_1_1460485261134_52700" \
face="sans-serif" size="2">One odd note I found is that I have some difficulty with \
hibernate also. If I attempt to hibernate this system, it takes about 2 minutes for \
it to actually go into hibernation. I have tried many things to see what is going on \
including booting with parameters such as ignore_loglevel, initcall_debug, \
no_console_suspend, etc. but there are no messages indicating why it takes so long to \
hibernate.</font> <br><font id="yui_3_16_0_ym19_1_1460485261134_52701" \
face="sans-serif" size="2">The funny thing is that if I suspend/resume, then rlogin \
to the machine and invoke hibernate, it goes into hibernation in about 10 seconds. \
Booting and restoring from hibernation restores everything (including the screen) \
right where it ought to be.</font> <br>
<br><font id="yui_3_16_0_ym19_1_1460485261134_52702" face="sans-serif" size="2">My \
workaround for now is to make a script with the following commands</font>
<br><font id="yui_3_16_0_ym19_1_1460485261134_52703" face="sans-serif" \
size="2">rtcwake -m mem -s 5;systemctl hibernate</font> <br><font face="sans-serif" \
size="2">Although it takes longer to recover than suspend/resume, it is within \
acceptable parameters.</font> <br>
<br><font id="yui_3_16_0_ym19_1_1460485261134_52704" face="sans-serif" \
size="2">-----------------------------------------------------<br> Russ Poffenberger \
| System Architecture Group<br>
Phone: +1 / 408 / 635-6049<br>
russell.poffenberger@xcerra.com<br>
Xcerra Corporation, LTX/Credence Division<br>
1355 California Circle<br>
Milpitas, CA 95035, USA<br>
-----------------------------------------------------</font>
<br>
<br>
<br>
<table class="yahoo-compose-table-card" width="100%">
<tbody><tr valign="top">
<td><font color="#5f5f5f" face="sans-serif" size="1">From:</font>
</td><td><font face="sans-serif" size="1">Thomas Lübking \
<thomas.luebking@gmx.de></font> </td></tr><tr valign="top">
<td><font color="#5f5f5f" face="sans-serif" size="1">To:</font>
</td><td><font face="sans-serif" size="1">russell.poffenberger@xcerra.com</font>
</td></tr><tr valign="top">
<td><font color="#5f5f5f" face="sans-serif" size="1">Date:</font>
</td><td><font face="sans-serif" size="1">04/14/2016 03:47 AM</font>
</td></tr><tr valign="top">
<td><font color="#5f5f5f" face="sans-serif" size="1">Subject:</font>
</td><td><font face="sans-serif" size="1">Re: No video after resume from \
suspend</font></td></tr></tbody></table> <br>
<hr noshade="">
<br>
<br>
<br><tt><font size="2">On Wed, Apr 13, 2016 at 05:44:27PM -0700, \
russell.poffenberger@xcerra.com wrote:<br>
>When I put the system to sleep, after resuming from sleep, the system<br>
>comes alive (I can rlogin fine), but there is no video signal, as reported<br>
>by the monitor and a blank display. No amount of pressing keys or moving<br>
>the mouse have any effect.<br>
<br>
Can you switch to another VT (ctrl+alt+f2) and does the framebuffer<br>
change get you a signal?<br>
<br>
>Is there something I can send or do to wake the video up, at least
to try<br>
>and understand what is not resuming properly?<br>
<br>
No idea whether that's related, but at least the nvidia blob has/d trouble<br>
moving data between VRAM and RAM across STR.<br>
<br>
Are you running gnome and does it also happen with a failsafe login?<br>
(Anything that's not a GL composited DE)<br>
<br>
Cheers,<br>
Thomas<br>
</font></tt>
<br>
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</div></div></body></html>
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