[Intel-gfx] Intel Pineview 3150 DPMS not working (monitor doesn't power off)

[Alexander Lam]

On Sat, Aug 7, 2010 at 11:31 AM, Brian Hall <hallbw at gmail.com> wrote:
> I have a nice little Atom motherboard, the D510MO, with the integrated
> Pineview graphics (GMA 3150). Everything works fine, but my LCD monitor
> never turns off. "xset dpms force suspend" turns off the screen image, but
> the monitor stays in "on mode", and after a few seconds the monitor says
> "Cable not connected". LCD turns off just fine with dpms suspend from other
> video cards. Console blanking doesn't work either: "setterm -powersave on",
> although I didn't test that with other video cards.
> Is this a known problem with Intel KMS, or the xf86-video-intel driver? Just
> trying to figure out if I need to file a bug report against the kernel or
> xorg.
> I did find this closed bug but it didn't seem to resolve anything:
> https://bugs.freedesktop.org/show_bug.cgi?id=20294
> I have installed the latest driver, xf86-video-intel-newest 2.12.0-1, but
> that didn't change the DPMS issue. Neither did updating the motherboard
> BIOS.
>> uname -a
> Linux brain 2.6.35-ARCH #1 SMP PREEMPT Mon Aug 2 21:54:18 CEST 2010 x86_64
> Intel(R) Atom(TM) CPU D510 @ 1.66GHz GenuineIntel GNU/Linux
> xf86-video-intel-newest 2.12.0-1
> xorg-server 1.8.1.902-1
> I'm using the autodefault xorg config (no /etc/X11/xorg.conf file). DPMS
> itself appears to be enabled and thinks it's "working".
> # grep -i DPMS /var/log/Xorg.0.log
> [    87.339] (II) Loading extension DPMS
> [    87.663] (II) intel(0): DPMS capabilities: StandBy Suspend; RGB/Color
> Display
> [    87.717] (==) intel(0): DPMS enabled
> 00:02.0 VGA compatible controller: Intel Corporation Pineview Integrated
> Graphics Controller (rev 02) (prog-if 00 [VGA controller])
>         Subsystem: Intel Corporation Device 4f4d
>         Flags: bus master, fast devsel, latency 0, IRQ 47
>         Memory at f0200000 (32-bit, non-prefetchable) [size=512K]
>         I/O ports at 20c0 [size=8]
>         Memory at e0000000 (32-bit, prefetchable) [size=256M]
>         Memory at f0100000 (32-bit, non-prefetchable) [size=1M]
>         Expansion ROM at <unassigned> [disabled]
>         Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
>         Capabilities: [d0] Power Management version 2
>         Kernel driver in use: i915
>         Kernel modules: i915
>
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>
>

I have an acer aspire one and on my old 17" CRT, I have to use "xset
dpms force standby." If i use "xset dpms force suspend," the display
does the same exact thing you describe.

-- 
Alexander Lam