Bug 662

Summary:	backlight doesn't turn off on dell inspiron 8200
Product:	xorg	Reporter:	reza <reza>
Component:	Driver/nVidia (open)	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	high	CC:	alec
Version:	6.7.0
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description reza 2004-05-23 20:40:25 UTC

Switching to fedora core 2, and hence x.org, the backlight will no longer turn
off on my laptop -- though the screen does blank.  I've tried all possible dpms
permuatations, and tried both the vesa and nv driver (I have the GeForce4 440
Chipset).  

I've done a lot of googling, and it seems that some other people also have the
same problem, but no one has found a solution.

Thanks,
Reza

Comment 1 reza 2004-05-23 20:46:56 UTC

I just want to add that it all worked perfectly fine with XFree86 (at least the
versions that came with RH9 and Fedora Core 1).  I did some searching and found
that theres is another bug reported regarding a similar problem.  I'm wondering
why it used to work, and what happened to break it (between xfree86 and x.org)

Comment 2 Egbert Eich 2004-05-27 23:01:22 UTC

I don't think it was broken between X.Org and XFree86. It was probably broken
between XFree86 4.3 and 4.4RC.

Comment 3 DEMAINE Benoit-Pierre 2004-09-14 07:11:47 UTC

Same bug on gericom Laptop ( S3 savage)

it was all the same for me : DPMS worked fine with latest Debian SID xfree, and
switching off the screen stopped working when I switched to xorg.

No patch to offer.

Comment 4 Alex Deucher 2004-09-29 08:06:07 UTC

Savage dpms for lcds should work fine with xorg cvs (previous versions of xorg
had no code to handle this).

Comment 5 Alec Edworthy 2004-10-12 02:53:28 UTC

Same problems for me on a Dell Inspiron 8200 with NVIDIA GeForce Go 2 chipset,
i.e. the backlight does not turn off. I am using the latest xorg release from
Fedora Core 2 (xorg-x11-6.7.0-9) which is the only release I've used on this
laptop (only just installed FC2 on it). The output from lspci follow,

01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 Go] (rev
b2) (prog-if 00 [VGA])
        Subsystem: Dell Computer Corporation: Unknown device 00d4
        Flags: bus master, VGA palette snoop, 66Mhz, medium devsel, latency 32,
IRQ 11
        Memory at fc000000 (32-bit, non-prefetchable)
        Memory at e0000000 (32-bit, prefetchable) [size=128M]
        Capabilities: [60] Power Management version 2
        Capabilities: [44] AGP version 2.0

Any idea when we might see a fix for this please?

Thanks, Alec

Comment 6 DEMAINE Benoit-Pierre 2004-12-02 13:30:52 UTC

(In reply to comment #4)
> Savage dpms for lcds should work fine with xorg cvs (previous versions of xorg
> had no code to handle this).

You can close the bug. It really works fine with CVS version ( on my Gericom box ).

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