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I know my laptop didn't crash because I'm able to put it into suspend mode. Thanks for the tip; I'll try it out. I also changed my BIOS and told it to disable power savings when plugged in. Maybe one of the two will help... > Date: Tue, 9 Sep 2008 06:57:44 -0700 > Subject: Re: LCD blanks out overnight > From: centos@xxxxxxxxxxxxxxxx > To: centos@xxxxxxxxxx > > Joe Tseng wrote: > > I inherited an ancient Dell Latitude C840 and recently installed CentOS 5.2 > > on it. It worked fine for the most part, but when I left it overnight and > > came back the next morning, the screen blacked out and wouldn't come back > > unless I did a hard reset. Even though I turned off all the power > > management settings and left it set like a desktop, the next morning after > > that it still blacked out. I thought maybe it'd come back if I switched > > from X to a virtual text console, but that didn't do the trick. Has anyone > > seen this and what do I do to fix it? > > Is the machine still responsive? e.g. does the caps light key work? Or > is it frozen solid? > > I don't know how many laptops it affects but my previous Toshiba laptops > had problems where if the screen went into power save mode about 70% of > the time the only way to get it to turn back on was to either reboot the > box or put it in suspend/sleep/hibernate and wake it up again. Toshiba > said this was a common problem across vendors that used multiple cores > in their laptops. Microsoft released a fix for it for XP about a year > and a half ago(though as the fix was a specialized fix not a generic > fix that was pushed out to users I didn't realize it until after I > switched off of XP and onto Ubuntu, took a while until a version > of Ubuntu came out that could suspend/resume on that system). I could > not find any related fix for X11, so I just disabled screen blanking > in the X server. > > It's been a while and I don't have that laptop anymore but what > I believe I did was add > > Options "-DPMS" > > To the monitor section of xorg.conf, see the man page for xorg.conf > for other DPMS related options. > > Of course that just turns off screen blanking/power off, if your > system is crashing, that's another topic.. See how Windows connects the people, information, and fun that are part of your life. See Now |
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