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Message-Id: <200709221746.14429.mihai.dontu@gmail.com>
Date: Sat, 22 Sep 2007 17:46:14 +0300
From: Mihai Donțu <mihai.dontu@...il.com>
To: linux-kernel@...r.kernel.org
Subject: Re: 2.6.23-rc7 + radeonfb/s2ram
On Saturday 22 September 2007, Mihai Donțu wrote:
> Hi,
>
> Today, out of curiosity, I pulled 2.6.23-rc7 (leave on the edge in a quiet weekend).
> Anyway, it seems that radeonfb and my:
> "01:05.0 VGA compatible controller: ATI Technologies Inc ATI Radeon XPRESS 200M 5955 (PCIE)"
> don't get along anymore, by:
> a) X somehow fails to initialize the card and everything moves really slow (I can
> see how surfaces are drawn pixel-by-pixel); furthermore, garbage stuff appears
> on the screen;
> b) after powering up from a s2ram, the system freezes;
>
> b) is not that bad, s2ram never worked on my machine (kjournald and some other kernel
> processes, enter disk-sleep and in a matter of seconds, everything just... freezes.
> I can type a few commands at the normal console but that is all);
>
> Following the advices in 'Documentation/power/s2ram.txt' helped. Using the regular
> VGA console got X on the right track (no more slowness);
>
> Now that I got my hands "dirty", I'm in the mood to make my s2ram work (I've
> been using Linux (exclusively) for three years now, it's about time I do a small
> contribution). What kernel option must I enable to determine why some processes
> enter (and stay in) disk-sleep? I'm on a laptop and I don't think it will withstand
> too many reboots :)
>
> I've also attached the output of lspci and dmesg. Maybe someone spots something.
>
> Thanks,
>
Since there was no reply, I assume people *do* take the weekend off :)
Anyway, I took matters into my own hands and enabled whatever debugging
feature seamed reasonable enough (ACPI, SysRq, etc).
Reboot, play, echo "mem" >/sys/power/state. I waited 5s and powered up
and found this in dmesg
"
hda:task_out_intr:status = 0x51 { DriveReady SeekComplete Error }
hda:task_out_intr:error = 0x04 { DriveStatusError }
ide:failed opcode was: unknown
"
I figured my IDE woke up in a bad mood so I alt-sysrq-s, alt-sysrq-u and
alt-sysrq-b (blessed be he who invented alt-sysrq-<command>). After
boot I went back to my "make menuconfig" and stared for ... 15s, when I
found this: "IDE ACPI support" (boy do I feel silly).
Reboot, play, echo "mem" >/sys/power/state ... [5s] ... power up. Ta-da!
Everything works. Well, maybe the audio needed a little "jolt" (turn sound
off, back on, move the volume a bit and voila!).
I've attached the dmesg, again, maybe someone spots something bad.
Thanks,
--
Mihai Donțu
View attachment "dmesg-dbg.txt" of type "text/plain" (47971 bytes)
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