Re: S3 resume and commit 24576d23976746cb52e7700c4cadbf4bc1bc3472

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On Tue, 17 Dec 2013 10:52:06 +0100
Daniel Vetter <daniel.vetter@xxxxxxxx> wrote:

> On Mon, Dec 16, 2013 at 7:52 PM, Colin Ian King
> <colin.king@xxxxxxxxxxxxx> wrote:
> > Hi there,
> >
> > There is a S3 resume issue that affects HP Mini Atom N270 with Intel
> > Mobile 945GSE on Linux 3.9.0 upwards.
> >
> > Device:
> > 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile
> > 945GSE Express Integrated Graphics Controller [8086:27ae] (rev 03)
> > (prog-if 00 [VGA controller])
> >         Subsystem: Hewlett-Packard Company Device [103c:361a]
> >         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 16
> >         Region 0: Memory at fe980000 (32-bit, non-prefetchable) [size=512K]
> >         Region 1: I/O ports at dc80 [size=8]
> >         Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
> >         Region 3: Memory at fe940000 (32-bit, non-prefetchable) [size=256K]
> >         Expansion ROM at <unassigned> [disabled]
> >         Capabilities: <access denied>
> >         Kernel driver in use: i915
> >
> > Issue: On S3 resume screen is blank.  I've tracked this down to 2 patches:
> >
> > 1. 24576d23976746cb52e7700c4cadbf4bc1bc3472
> >
> > drm/i915: enable VT switchless resume v3
> >
> > This commit stops the screen from turning back on. Without the patch the
> > screen resumes back to on, however it is filled with random vertical lines.
> >
> > 2. fa55583797d12b10928a1813f3dcf066637caf5e
> >
> > drm/i915: fixup the plane->pipe fixup code
> >
> > I have to manually revert this.  If I don't I get the random vertical
> > lines on resume.
> >
> > Any ideas on how to address these two issues that cause S3 resume to
> > leave the HP mini in a broken state?
> 
> Please file a bug report on bugs.freedesktop.org against DRI ->
> DRM(Intel). Also please always cc relevant mailing lists when
> reporting kernel issues.

Are you using X with a recent (well not ancient) X driver?  Do you have
any other console drivers built in, like vesafb?

If you open a bug, please add the above info to that instead, we can
track it there.

-- 
Jesse Barnes, Intel Open Source Technology Center
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