Re: [patch] suspend: update documentation

[randy_dunlap <rdunlap@xenotime.net>]

On Tue, 12 Jul 2005 11:05:10 +0200 Pavel Machek wrote:

| Update suspend documentation.
| 
| Signed-off-by: Pavel Machek <pavel@suse.cz>
| 
| ---
| 
| diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
| --- a/Documentation/power/swsusp.txt
| +++ b/Documentation/power/swsusp.txt
| @@ -318,3 +318,10 @@ As a rule of thumb use encrypted swap to
|  system is shut down or suspended. Additionally use the encrypted
|  suspend image to prevent sensitive data from being stolen after
|  resume.
| +
| +Q: Why we cannot suspend to a swap file?

Q: Why can't we suspend to a swap file?
or
Q: Why can we not suspend to a swap file?

| +
| +A: Because accessing swap file needs the filesystem mounted, and
| +filesystem might do something wrong (like replaying the journal)
| +during mount. [Probably could be solved by modifying every filesystem
| +to support some kind of "really read-only!" option. Patches welcome.]
| diff --git a/Documentation/power/video.txt b/Documentation/power/video.txt
| --- a/Documentation/power/video.txt
| +++ b/Documentation/power/video.txt
| @@ -46,6 +46,12 @@ There are a few types of systems where v
|    POSTing bios works. Ole Rohne has patch to do just that at
|    http://dev.gentoo.org/~marineam/patch-radeonfb-2.6.11-rc2-mm2.
|  
| +(8) on some systems, you can use the video_post utility mentioned here:
| +  http://bugzilla.kernel.org/show_bug.cgi?id=3670. Do echo 3 > /sys/power/state

That attachment is weird for me.  It downloads as "attachment.cgi", but
it's a tar.gz file.  :(        (using firefox if it matters)

| +  && /usr/sbin/video_post - which will initialize the display in console mode.
| +  If  you are in X, you can switch to a virtual terminal and back to X using
| +  CTRL+ALT+F1 - CTRL+ALT+F7 to get the display working in graphical mode again.


---
~Randy