Re: i915 resume-from-hibernation problems on resume with current Linus' tree

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On Tue, Mar 04, 2014 at 02:45:09PM +0100, Borislav Petkov wrote:
> On Mon, Mar 03, 2014 at 03:20:11PM +0100, Jiri Kosina wrote:
> > I encountered this again with -rc5.
> > 
> > If there is anything I can do to help debug this, please let me know.
> 
> I have a similar issue where the screen blanks after the machine idle
> timeout expires (not suspending the box - just leaving it idle) and then
> when I press any button to wake up the screen, it remains off. The box
> is otherwise alive, I can log into it and restart X. Then the screen is
> back on. This started appearing in the -rc3-4 timeframe AFAICT.
> 
> My GPU is
> 
> 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
>         Subsystem: Lenovo Device 21fa
>         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 42
>         Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
>         Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
>         Region 4: I/O ports at 4000 [size=64]
>         Expansion ROM at <unassigned> [disabled]
>         Capabilities: <access denied>
>         Kernel driver in use: i915
> 00: 86 80 66 01 07 04 90 00 09 00 00 03 00 00 00 00
> 10: 04 00 00 f0 00 00 00 00 0c 00 00 e0 00 00 00 00
> 20: 01 40 00 00 00 00 00 00 00 00 00 00 aa 17 fa 21
> 30: 00 00 00 00 90 00 00 00 00 00 00 00 0b 01 00 00
> 
> Maybe I should say that I'm booting the box with
> 
> [    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.14.0-rc5+ root=/dev/sdb2 ro root=/dev/sdb2 ignore_loglevel log_buf_len=10M resume=/dev/sdb1 i915.i915_enable_rc6=4 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.powersave=1

>From looking at

http://lkml.kernel.org/r/1394011994-30604-1-git-send-email-daniel.vetter@xxxxxxxx

it looks like I should stop using the rc6/fbc settings?

:-)

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
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