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<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>LKML: Benjamin Herrenschmidt: Re: Linux 2.6.12-rc2</title><link href="/css/message.css" rel="stylesheet" type="text/css" /><link href="/css/wrap.css" rel="alternate stylesheet" type="text/css" title="wrap" /><link href="/css/nowrap.css" rel="stylesheet" type="text/css" title="nowrap" /><link href="/favicon.ico" rel="shortcut icon" /><script src="/js/simple-calendar.js" type="text/javascript"></script><script src="/js/styleswitcher.js" type="text/javascript"></script><link rel="alternate" type="application/rss+xml" title="lkml.org : last 100 messages" href="/rss.php" /><link rel="alternate" type="application/rss+xml" title="lkml.org : last messages by Benjamin Herrenschmidt" href="/groupie.php?aid=447" /><script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(["setDoNotTrack", true]); _paq.push(["disableCookies"]); _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function() { var u="//m.lkml.org/"; _paq.push(['setTrackerUrl', u+'matomo.php']); _paq.push(['setSiteId', '1']); var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); })(); </script></head><body onload="es.jasper.simpleCalendar.init();" itemscope="itemscope" itemtype="http://schema.org/BlogPosting"><table border="0" cellpadding="0" cellspacing="0"><tr><td width="180" align="center"><a href="/"><img style="border:0;width:135px;height:32px" src="/images/toprowlk.gif" alt="lkml.org" /></a></td><td width="32">聽</td><td class="nb"><div><a class="nb" href="/lkml"> [lkml]</a> 聽 <a class="nb" href="/lkml/2005"> [2005]</a> 聽 <a class="nb" href="/lkml/2005/4"> [Apr]</a> 聽 <a class="nb" href="/lkml/2005/4/7"> [7]</a> 聽 <a class="nb" href="/lkml/last100"> [last100]</a> 聽 <a href="/rss.php"><img src="/images/rss-or.gif" border="0" alt="RSS Feed" /></a></div><div>Views: <a href="#" class="nowrap" onclick="setActiveStyleSheet('wrap');return false;">[wrap]</a><a href="#" class="wrap" onclick="setActiveStyleSheet('nowrap');return false;">[no wrap]</a> 聽 <a class="nb" href="/lkml/mheaders/2005/4/7/260" onclick="this.href='/lkml/headers'+'/2005/4/7/260';">[headers]</a>聽 <a href="/lkml/bounce/2005/4/7/260">[forward]</a>聽 </div></td><td width="32">聽</td></tr><tr><td valign="top"><div class="es-jasper-simpleCalendar" baseurl="/lkml/"></div><div class="threadlist">Messages in this thread</div><ul class="threadlist"><li class="root"><a href="/lkml/2005/4/4/242">First message in thread</a></li><li><a href="/lkml/2005/4/7/187">Moritz Muehlenhoff</a><ul><li><a href="/lkml/2005/4/7/208">Nish Aravamudan</a><ul><li class="origin"><a href="/lkml/2005/4/7/294">Benjamin Herrenschmidt</a><ul><li><a href="/lkml/2005/4/7/294">Nish Aravamudan</a></li></ul></li><li><a href="/lkml/2005/4/8/29">AsterixTheGaul</a><ul><li><a href="/lkml/2005/4/8/33">AsterixTheGaul</a><ul><li><a href="/lkml/2005/4/8/41">AsterixTheGaul</a></li></ul></li><li><a href="/lkml/2005/4/8/169">Nish Aravamudan</a><ul><li><a href="/lkml/2005/4/8/217">AsterixTheGaul</a></li></ul></li></ul></li></ul></li><li><a href="/lkml/2005/4/7/258">Benjamin Herrenschmidt</a></li></ul></li></ul></td><td width="32" rowspan="2" class="c" valign="top"><img src="/images/icornerl.gif" width="32" height="32" alt="/" /></td><td class="c" rowspan="2" valign="top" style="padding-top: 1em"><table><tr><td><table><tr><td class="lp">Subject</td><td class="rp" itemprop="name">Re: Linux 2.6.12-rc2</td></tr><tr><td class="lp">From</td><td class="rp" itemprop="author">Benjamin Herrenschmidt <></td></tr><tr><td class="lp">Date</td><td class="rp" itemprop="datePublished">Fri, 08 Apr 2005 08:45:02 +1000</td></tr></table></td><td></td></tr></table><pre itemprop="articleBody">On Thu, 2005-04-07 at 11:54 -0700, Nish Aravamudan wrote:<br />> On Apr 7, 2005 10:50 AM, Moritz Muehlenhoff <jmm@inutil.org> wrote:<br />> > Benjamin Herrenschmidt wrote:<br />> > > > 1. When resuming from S3 suspend and having switched off the backlight<br />> > > > with radeontool the backlight isn't switched back on any more.<br />> > ><br />> > > I'm not sure what's up here, it's a nasty issue with backlight. Can<br />> > > radeontool bring it back ?<br />> > <br />> > Before suspending I power down the backlight with "radeontool light off"<br />> > and with 2.6.11 the display is properly restored. With 2.6.12rc2 the<br />> > backlight remains switched off and if I switch it on with radeontool it<br />> > becomes lighter, but there's still no text from the fbcon, just the blank<br />> > screen.<br />> <br />> FWIW, I have the same problem on a T41p with 2.6.11 and 2.6.12-rc2,<br />> except that neither returns from suspend-to-ram with video restored on<br />> the LCD. I believe I was able to get video restored on an external CRT<br />> in either 2.6.12-rc2 or 2.6.12-rc2-mm1, but the LCD still didn't<br />> restore (can verify later today, if you'd like). I had dumped out the<br />> radeontool regs values before & after the sleep, in case they help.<br />> They are attached.<br />> <br />> I posted these problems in the "Call for help S3" thread, but no one responded.<br /><br />I would say the different value in LVDS_GEN_CNTL explains it. I'll see<br />if I can force radeonfb to save/restore this.<br /><br />Ben.<br /><br /><br />-<br />To unsubscribe from this list: send the line "unsubscribe linux-kernel" in<br />the body of a message to majordomo@vger.kernel.org<br />More majordomo info at <a href="http://vger.kernel.org/majordomo-info.html">http://vger.kernel.org/majordomo-info.html</a><br />Please read the FAQ at <a href="http://www.tux.org/lkml/">http://www.tux.org/lkml/</a><br /><br /></pre></td><td width="32" rowspan="2" class="c" valign="top"><img src="/images/icornerr.gif" width="32" height="32" alt="\" /></td></tr><tr><td align="right" valign="bottom"> 聽 </td></tr><tr><td align="right" valign="bottom">聽</td><td class="c" valign="bottom" style="padding-bottom: 0px"><img src="/images/bcornerl.gif" width="32" height="32" alt="\" /></td><td class="c">聽</td><td class="c" valign="bottom" style="padding-bottom: 0px"><img src="/images/bcornerr.gif" width="32" height="32" alt="/" /></td></tr><tr><td align="right" valign="top" colspan="2"> 聽 </td><td class="lm">Last update: 2005-04-08 00:53 聽聽 [from the cache]<br />漏2003-2020 <a href="http://blog.jasper.es/"><span itemprop="editor">Jasper Spaans</span></a>|hosted at <a href="https://www.digitalocean.com/?refcode=9a8e99d24cf9">Digital Ocean</a> and my Meterkast|<a href="http://blog.jasper.es/categories.html#lkml-ref">Read the blog</a></td><td>聽</td></tr></table><script language="javascript" src="/js/styleswitcher.js" type="text/javascript"></script></body></html>