linux-kernel - i915 modeset defunct [was: mmotm 2010-12-16-14-56 uploaded]

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Message-ID: <4D0F26AE.9010205@gmail.com>
Date:	Mon, 20 Dec 2010 10:49:34 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	linux-kernel@...r.kernel.org
CC:	akpm@...ux-foundation.org, mm-commits@...r.kernel.org,
	Chris Wilson <chris@...is-wilson.co.uk>,
	dri-devel@...ts.freedesktop.org
Subject: i915 modeset defunct [was: mmotm 2010-12-16-14-56 uploaded]

On 12/16/2010 11:56 PM, akpm@...ux-foundation.org wrote:
> The mm-of-the-moment snapshot 2010-12-16-14-56 has been uploaded to

Hi, there is a regression against 2010-12-02-16-34 in i915. When modeset
is used, my G33 produces no signal to the monitor (black screen, power
led blinks).

00:00.0 Host bridge [0600]: Intel Corporation 82G33/G31/P35/P31 Express
DRAM Controller [8086:29c0] (rev 02)
        Subsystem: Intel Corporation 82G33/G31/P35/P31 Express DRAM
Controller [8086:29c0]
        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
        Capabilities: [e0] Vendor Specific Information: Len=0b <?>
        Kernel driver in use: agpgart-intel
00: 86 80 c0 29 06 00 90 20 02 00 00 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 c0 29
30: 00 00 00 00 e0 00 00 00 00 00 00 00 00 00 00 00
40: 01 90 d1 fe 01 00 00 00 01 40 d1 fe 00 00 00 00
50: 00 00 30 02 c9 03 00 00 00 00 00 00 00 00 00 00
60: 01 00 00 e0 00 00 00 00 01 80 d1 fe 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 10 11 11 00 00 33 33 00 5f 00 72 00 00 0a 38 00
a0: 60 00 c0 1c 00 00 80 af 00 00 60 af 00 00 60 af
b0: 00 b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 49 00 00 00 00 00 00 5b
e0: 09 00 0b 01 00 00 00 00 01 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 90 0f 03 00 00 00 00 00

00:02.0 VGA compatible controller [0300]: Intel Corporation 82G33/G31
Express Integrated Graphics Controller [8086:29c2] (rev 02) (prog-if 00
[VGA controller])
        Subsystem: Intel Corporation 82G33/G31 Express Integrated
Graphics Controller [8086:29c2]
        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 feb80000 (32-bit, non-prefetchable) [size=512K]
        Region 1: I/O ports at ec00 [size=8]
        Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
        Region 3: Memory at fea00000 (32-bit, non-prefetchable) [size=1M]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
                Address: fee0300c  Data: 4161
        Capabilities: [d0] Power Management version 2
                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
00: 86 80 c2 29 07 04 90 00 02 00 00 03 00 00 00 00
10: 00 00 b8 fe 01 ec 00 00 08 00 00 d0 00 00 a0 fe
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 c2 29
30: 00 00 00 00 90 00 00 00 00 00 00 00 05 01 00 00
40: 09 00 0b 01 00 00 00 00 01 00 00 00 00 00 00 00
50: 00 00 30 02 c9 03 00 00 00 00 00 00 00 00 80 af
60: 00 00 02 02 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 05 d0 01 00 0c 30 e0 fe 61 41 00 00 00 00 00 00
a0: 11 11 00 00 00 00 06 03 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 01 00 22 00 00 00 00 00 00 00 00 00 00 01 02 00
e0: 00 00 00 00 00 00 00 00 00 80 00 00 00 00 00 00
f0: 12 00 03 00 00 00 00 00 90 0f 03 00 e4 e0 5b af


any ideas?

thanks,
-- 
js
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