From: Timo Hoenig <thoenig@suse.de>
To: Pavel Machek <pavel@suse.cz>
Cc: Stefan Seyfried <seife@suse.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
kernel list <linux-kernel@vger.kernel.org>
Subject: Re: thinkpad suspend to ram and backlight
Date: Tue, 04 Oct 2005 14:13:09 +0200 [thread overview]
Message-ID: <1128427990.14551.20.camel@nouse.suse.de> (raw)
In-Reply-To: <20051004120334.GE17458@elf.ucw.cz>
Hi,
On Tue, 2005-10-04 at 14:03 +0200, Pavel Machek wrote:
> > When eying the display precisely it seems to be switched off for a short
> > moment once the system enters S3 but then gets turned on again.
>
> Yes, same with radeonfb here.
>
> I use
>
> #!/bin/bash
> radeontool light off
> echo 3 > /proc/acpi/sleep
> radeontool light on
Well, if we're already discussing workarounds which shouldn't be needed.
With ibm_acpi loaded this should help:
#!/bin/bash
echo lcd_disable > /proc/acpi/ibm/video
echo 3 > /proc/acpi/sleep
echo lcd_enable > /proc/acpi/ibm/video
> ...and it works most of the time. Sometimes screen is corrupted after
> resume, another suspend/resume cycle cures that. (Strange!)
I haven't encountered screen corruption until now.
> Pavel
Timo
prev parent reply other threads:[~2005-10-04 12:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-02 17:57 Pavel Machek
2005-10-02 18:07 ` Jan Spitalnik
2005-10-02 18:10 ` Pavel Machek
2005-10-02 18:23 ` Pavel Machek
2005-10-02 23:11 ` Benjamin Herrenschmidt
2005-10-02 23:35 ` Pavel Machek
2005-10-03 0:15 ` Benjamin Herrenschmidt
2005-10-02 18:14 ` Dan C Marinescu
2005-10-03 10:00 ` Stefan Seyfried
2005-10-04 11:44 ` Pavel Machek
2005-10-04 12:04 ` Rolf Offermanns
2005-10-04 12:00 ` Timo Hoenig
2005-10-04 12:03 ` Pavel Machek
2005-10-04 12:13 ` Timo Hoenig [this message]
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