backlight does not turn off with xset dpms...works with vbetool

Can you check that your /etc/X11/xorg.conf references i810 rather than VESA?

yes it does reference i810.

thanks

Matthew Garrett wrote:
> Can you check that your /etc/X11/xorg.conf references i810 rather than VESA?
>
> ** Changed in: acpi-support (Ubuntu)
> Sourcepackagename: acpi-support => xserver-xorg-driver-i810

i just checked with vesa as well. with vesa "xset dpms off" does not
work but vbetool works correctly.

with vesa the screensaver still becomes completely white when it is
supposed to blank.

so the problem appears to not be specific to i810 after all...

sorry to bother you again.
but i want to make sure that im filing this bug against the right package. from my last attempt with vesa it seems that the bug is with gnome-screensaver after all.

1, gnome-screensaver makes the screen comepletely white when it "locks the screen" (both with i810 and vesa)
2, when the screen is turned off with ''xset dpms off'' with i810 the backlight stays on. vbetool does the job correctly...

thanks

If xset dpms off doesn't turn the screen off, the bug is with X.

Jens: are you using a 64-bit (amd64) machine or standard i386?

i386

Paul Sladen wrote:
> Jens: are you using a 64-bit (amd64) machine or standard i386?
>

I have also this issue, using both dapper and edgy on an hp nx7400 and an Acer 5612wlmi (both with intel 950gma).
If I use vbesave dpms off the backlight goes off, with gnome-power-manager, xset dpms force off, the backlighy remains on.

..and my Xorg log

The problem is present also using the failsafe terminal xsession. So it's not gnome-related...

See also:
https://bugs.launchpad.net/distros/ubuntu/+source/acpi-support/+bug/19410

This is still happening with current Feisty package for X.org 7.2 (package xorg v. 7.2-0ubuntu2)

i can confirm this behaviour too.
using an hp nx7400 with flying toasters as screansaver.

the blacklight issue is happening when im resuming from a long idle time.
i've noticed that system is actually resuming , no blacklight & no keyboard/mouse too..

hard shutdown each time..

Still not fixed for me. When Xscreensaver tries to 'standby' after 10 minutes my screen backlight does not turn off - although I see an interesting pattern which kinda looks like a grid of transistors in bright white against the black background, so I suspect it is trying to turn off.

Could you please recheck it with Gutsy Final Live CD? In Gutsy i810 driver is deprecated and intel driver is used instead.

With intel driver, bug is fixed, you can close this bug for me.

As per the last comment, I'm marking this fixed.

If anyone still experiences this same problem with the released version of Gutsy, feel free to reopen.

In my case the problem is with the S3 Savage (xserver-xorg-video-savage?) driver, so you can close this one and I'll hang on to some of the other reports of the same problem, such as bug 71368, bug 117836, bug 140644 and 158022.