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--- dell_e5400 [2009/11/04 20:23] – Suspend and hibernate. jim
+++ dell_e5400 [2010/01/20 09:51] (current) – Suspend and hibernate update. jim
@@ Line 3: / Line 3: @@
 First the screen and then the power supply of the Acer 5051AWXMI I've been using for work died some 9 months after the warranty expired. Work said 'Pick a Dell', so I did.
-I wanted something not too large but with a screen with plenty of resolution. I picked the [[http://www.dell.com/us/en/enterprise/notebooks/laptop_latitude_e5400/pd.aspx?refid=laptop_latitude_e5400&cs=555&s=biz|E5400]] with the WXGA+ display after reading good things about its Linux compatability.
+I wanted something not too large but with a screen with plenty of resolution. I picked the [[http://www.dell.com/us/en/enterprise/notebooks/laptop_latitude_e5400/pd.aspx?refid=laptop_latitude_e5400&cs=555&s=biz|E5400]] with the WXGA+ display after reading good things about its Linux compatibility.
-This time I'm installed Debian Unstable (Sid) from scratch. Or rather installed Debian Stable (currently Lenny) from a CD I had lying around and then upgraded.
+This time I'm installed Debian Unstable (Sid) from scratch. Or rather installed Debian Stable (currently Lenny) from a CD I had lying around and then upgraded. I need to build some work stuff targetting i386 with GCC 3.3, so for simplicity this is a i386 install, and not x86_64.
 ===== The Quick Summary =====
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+The video and kernel support kernel modesetting, so I enabled it using the [[http://wiki.debian.org/KernelModesetting|instructions on the Debian wiki]]. With that and the dependency startup in Sid, I get to a KDM login screen a little over 20s after power on.
 ===== Networking =====
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 Audio is the Intel HDA. So far this has just worked without me needing to do anything. I have yet to try audio capture or the headphone socket.
 ===== Suspending/Hibernating =====
-To my delight both seem to work solidly.
+Initially both seemed to work solidly. Then, sadly, it turned out this was an illusion. Suspend does seem to be reliable. Hibernate mostly works. Mixing the two seems to greatly increases the chances of the system wedging. The Dell BIOS DSDT shows the usual selection of warnings from the Intel compiler.
-I've installed ''uswsusp'' to give me a little console feedback during suspend and resume. This seems to be OK. I tried adding ''splashy'' for some eye candy, but immediately fell found of kernel memory corruption on resume.
+I've installed ''uswsusp'' to give me a little console feedback during suspend and resume. This seems to be OK. I tried adding ''splashy'' for some eye candy, but immediately fell found of kernel memory corruption on resume. I suspect this may be an interaction with the kernel modesetting. The modesetting stays, ''splashy'' goes.

dell_e5400.1257366209.txt.gz · Last modified: 2009/11/04 20:23 by jim

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