linux-kernel - Re: [2/6] 2.6.21-rc2: known regressions

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Date:	Sun, 11 Mar 2007 09:20:02 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Pavel Machek <pavel@...e.cz>
Cc:	Stefan Seyfried <seife@...e.de>,
	Johannes Stezenbach <js@...uxtv.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Michael S. Tsirkin" <mst@...lanox.co.il>,
	Adrian Bunk <bunk@...sta.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	Jeff Chua <jeff.chua.linux@...il.com>, linux-pm@...ts.osdl.org,
	lenb@...nel.org, linux-acpi@...r.kernel.org, luming.yu@...el.com,
	Arkadiusz Miskiewicz <arekm@...en.pl>,
	Konstantin Karasyov <konstantin.a.karasyov@...el.com>,
	Greg KH <greg@...ah.com>,
	linux-usb-devel@...ts.sourceforge.net,
	Thomas Meyer <thomas.mey@....de>, Meelis Roos <mroos@...ux.ee>,
	Alexey Starikovskiy <alexey.y.starikovskiy@...ux.intel.com>,
	Janosch Machowinski <jmachowinski@....de>,
	vladimir.p.lebedev@...el.com,
	Ash Milsted <thatistosayiseenem@...ab.com>,
	dmitry.torokhov@...il.com
Subject: Re: [2/6] 2.6.21-rc2: known regressions

* Pavel Machek <pavel@...e.cz> wrote:

> > Probably tweaking the webpage doesnt help because people dont get 
> > there - as the results plainly show it. Maybe some more automation 
> > would be useful too, a tool that detects failed resume and tries all 
> > those options that makes sense on that box or something? It's not 
> > like that
> 
> Unfortunately, these tend to crash the box when you pass wrong 
> options, and I do not see easy way to test "can user see whats on 
> display" automatically.

you could perhaps try what X's modesetting utility does: display a 
dialog box that times out if it does not get clicked on, and reboot if 
it did not get clicked on. Likewise, detect upon the next bootup that a 
suspend-test was in progress (and didnt get back via normal resume), via 
some temporary file. That way both the 'did not resume and i had to 
power-cycle' and the 'resume did not restore my X' problems can be 
handled.

Finally, when the correct options have been established (worse-case with 
a small number of reboots and "yes, indeed the resume did not work fine" 
clicks done upon bootup by the user), automatically fill in a webform in 
firefox and ask the user to do a single click to submit that form.

techniques like that have more chance i think to get Linux 
suspend/resume anywhere near to working. The current 'rely on the 
developer' technique apparently does not work.

	Ingo
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