amd64/181358: Suspend to RAM not working correctly on Lenovo X121e (ACPI issue?)

Sat Aug 24 21:50:02 UTC 2013

The following reply was made to PR amd64/181358; it has been noted by GNATS.

From: Matthias Petermann <matthias at petermann-it.de>
To: freebsd-amd64 at freebsd.org, current at freebsd.org, 
 freebsd-acpi at freebsd.org, bug-followup at FreeBSD.org
Cc:  
Subject: amd64/181358: Suspend to RAM not working correctly on Lenovo X121e
 (ACPI issue?)
Date: Sat, 24 Aug 2013 23:38:29 +0200

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 Hello,

 regarding the issue mentioned in the subject (Lenovo Thinkpad X121e not 
 able to resume after suspend to ram) there is finally some progress. I 
 found this few months old discussion[1] on freebsd-acpi (related to 
 Thinkpad X201):

 "I had a similar problem. After syncing with FreeBSD 10-CURRENT and 
 compiling a kernel without
 VESA support, I was able to get graphics to work on resume, but only 
 when running X. "

 This works for the X121e too! It is now able to suspend and resume 
 properly when running Xorg (with i915kms.ko). I'm really happy :-)

 There is only a (very minor) problem: after the first resume Xorg 
 graphics seem to slow down. When moving windows on the screen they leave 
 some traces behind and it takes some milliseconds until they are wiped 
 away and replaced with the background image.

 Kind regards,
 Matthias

 [1]

 http://freebsd.1045724.n5.nabble.com/Resume-failed-after-Suspend-on-Thinkpad-x201i-td5723622.html

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     Hello,<br>
     <br>
     regarding the issue mentioned in the subject (Lenovo Thinkpad X121e
     not able to resume after suspend to ram) there is finally some
     progress. I found this few months old discussion[1] on freebsd-acpi
     (related to Thinkpad X201):<br>
     <br>
     "I had a similar problem. After syncing with FreeBSD 10-CURRENT and
     compiling a kernel without
     <br>
     VESA support, I was able to get graphics to work on resume, but only
     when
     running X.
     "<br>
     <br>
     This works for the X121e too! It is now able to suspend and resume
     properly when running Xorg (with i915kms.ko). I'm really happy :-)<br>
     <br>
     There is only a (very minor) problem: after the first resume Xorg
     graphics seem to slow down. When moving windows on the screen they
     leave some traces behind and it takes some milliseconds until they
     are wiped away and replaced with the background image.<br>
     <br>
     Kind regards,<br>
     Matthias<br>
     <br>
     <br>
     [1]
     <p>
       <a
 href="http://freebsd.1045724.n5.nabble.com/Resume-failed-after-Suspend-on-Thinkpad-x201i-td5723622.html"
 title="http://freebsd.1045724.n5.nabble.com/Resume-failed-after-Suspend-on-Thinkpad-x201i-td5723622.html">http://freebsd.1045724.n5.nabble.com/Resume-failed-after-Suspend-on-Thinkpad-x201i-td5723622.html</a><br>
     </p>
     <meta name="Description" content="Copy-Paste Buffer">
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