Screen blanks on lid close, never comes back

[Colin Law]

On 17 January 2011 00:10, Nicolas Calderon
<nicolas.calderon.asselin at gmail.com> wrote:
> I have installed Ubuntu 10.10 on my ThinkPad R51 laptop, but have been
> having issues where the screen goes blank when I close the lid but never
> comes back. The computer is not crashed though, as I can still ssh in.
> I tried 3 settings in power management: do nothing, blank screen and
> suspend.

Where in Power Management are you setting this?  The options I have on
the Mains and Battery tabs for "When laptop lid is closed" are
Suspend, Hibernate and Shutdown.

Assuming that you want it to suspend, if you select Suspend from the
shutdown menu directly, without closing the lid, does that work ok?
If not then the issue is to do with suspend rather than the lid
operation.

Colin

> To set power manager to do nothing, I had to set through gconf, so I'm not
> sure that option is valid.
> Blank screen is a given option in power manager, and results in the
> described issue time after time.
> Suspend can also lead to the issue if the lid is reopened too quickly (the
> laptop doesn't have the time to go to sleep).
>
> I am left with the impression that this is a software issue (debian did not
> do that and I had it just before installing Ubuntu, but debian could not
> suspend) that leaves the video card state broken. I tried following
> instruction on to force pipe a quirck
> (https://wiki.ubuntu.com/X/Troubleshooting/BlankScreen#Problem: Lockup When
> Closing Lid with Intel Graphics) because I have an intel graphics card, but
> xorg tells me this option is not used (WW in xorg.conf). I attached the
> output to a few files or command outputs:
> lspci -vvnn | grep "VGA Compat":
> 00:02.0 VGA compatible controller [0300]: Intel Corporation 82852/855GM
> Integrated Graphics Device [8086:3582] (rev 02) (prog-if 00 [VGA
> controller])
>         Subsystem: IBM Device [1014:0557]
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx+
>         Latency: 0
>         Interrupt: pin A routed to IRQ 11
>         Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M]
>         Region 1: Memory at d0000000 (32-bit, non-prefetchable) [size=512K]
>         Region 2: I/O ports at 1800 [size=8]
>         Expansion ROM at <unassigned> [disabled]
>         Capabilities: [d0] Power Management version 1
>                 Flags: PMEClk- DSI+ D1+ D2- AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>         Kernel driver in use: i915
>         Kernel modules: i915
> /var/log/Xorg.0.log.old
> http://pastebin.com/55uX0D1r
> Notable errors:
> [    24.110] (EE) VESA: Kernel modesetting driver in use, refusing to load
> [    24.110] (WW) Falling back to old probe method for vesa
> and a few hundreds of:
> [    24.456] (EE) FBDEV(0): FBIOPUTCMAP: Invalid argument
>
> intel_reg_dumper (good and bad state)
> attached, and here is the diff:
> 110c110
> <             VGACNTRL: 0x22040000 (enabled)
> ---
>>             VGACNTRL: 0x80000000 (disabled)
> It might be worth noting that whenever I close the lid and reopen it (or
> just press the lid button), the screen comes visible for a fraction of
> second, but long enough for me to see that whatever needs to be shown gets
> updated (If I kill my gnome session through ssh, I can see gdm logging in
> that fraction of seconds). Also, it's not just an issue with the backlight
> as it does come back on on lid open, and stays on.
> Someone on #ubuntu (Freenode) suggested it might have to do with ACPI. I
> tried moving /etc/acpi/lid.sh to /etc/acpi/lid.sh.bak, but it didn't seem to
> make a diffrence. I don't know enough about ACPI to rule it out though.
> Thanks in advance,
> --
> Nicolas Calderon
>
>
>
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