Messages in this thread | | | Date | Wed, 23 Jun 2010 14:29:44 -0400 | Subject | Re: i915: Dell E6410 Ironlake LVDS detection | From | Ben Guthro <> |
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On Wed, Jun 23, 2010 at 2:11 PM, Philippe Troin <phil@fifi.org> wrote: > Ben Guthro <ben@guthro.net> writes: > >> On Wed, Jun 23, 2010 at 1:42 PM, Philippe Troin <phil@fifi.org> wrote: >> > I am seeing similar problems with an HP Elitebook 2540p. >> > >> > 2.6.32 works for me. >> > 2.6.33.5 does not. >> >> I have tried ubuntu mainline builds of: >> >> 2.6.32.21 >> 2.6.32.22 >> 2.6.34-rc3 >> 2.6.35-rc1 >> 2.6.34-drm-intel-next >> >> None have worked yet... > > Tried a vanilla kernel?
Yes, both mainline, and the drm-intel branch. Both boot to the black screen,
> >> > I was able to turn on an external display connected via VGA with >> > xrandr and it seemed to be working fine? >> >> When I boot without the external display, I am never able to ssh in - >> and I do not get the sound that typically plays when X is booted. >> >> I've put this onto a serial line, and it seems to hang sometime in >> init...with some indicators that it is when it switches over to the >> higher resolution console...but the screen is black, so this is really >> just a gut feel. > > Then it might be a different problem. For me, X definitely boots. > > Can you boot with nomodeset?
It seemed to reboot the system at some point in the boot process (panic?)
> What does lspci report for you?
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) Subsystem: Dell Device 040a 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 45 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 40b0 [size=8] Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable+ Address: fee0a00c Data: 4191 Capabilities: [d0] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [a4] PCIe advanced features <?> Kernel driver in use: i915 Kernel modules: i915
I booted with the external VGA connected, and drm.debug=0x06, and got the following message that looked interesting:
[ 9.203990] [drm:intel_lvds_init], LVDS is not present in VBT
I'm not sure why yet....but it seems like a reasonable string to pull on... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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