Dear Maintainer,

we encountered this problem while installing wheezy on our new Fujitsu P420
E85+:
when the display is connected via analog VGA cable everything works perfectly.
But when it is connected via DVI switching to the console (with e.g.
<Ctrl>-<Alt>-F1) or ending the X-Server results in a crash of the machine. It
is totally unresponsive: not event <Alt>-<SysReq> keys are working.
The cables we are using are with DVI-D single link connectors.

With testing the problem is gone (but we do not want to use testing).

Part of the output of lspci -vvvn

00:02.0 0300: 8086:041e (rev 06) (prog-if 00 [VGA controller])
        Subsystem: 1734:11e7
        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 f7800000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at f000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
                Address: 00000000  Data: 0000
        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-
        Capabilities: [a4] PCI Advanced Features
                AFCap: TP+ FLR+
                AFCtrl: FLR-
                AFStatus: TP-

Hello Maintainer, Herman, anyone else reading this,

I'm suffering from these crashes here (kwheezy) and all I could find
until now is this bug report.
Is there any fix for it?
Or is xorg the wrong package to look at and there is already a fix for
this problem somewhere else?
Does anybody know if other debian derivates, e.g. ubuntu 14.x are broken
too?
I'm looking forward for an upgrade to a workstation pool and right now
with this bug it's simply not going to happen.
(And I don't really want to switch back to vga at home anyway. I just
learned about this possible workaround reading this bug report here.)

Any ideas or hints anyone?

Thank you in advance and best wishes
Stephan Lahl

Dear Stephan,

unfortunately I was unable to find a solution other than using
VGA-cables which is feasible *for me*.

The problem does not exist in Debian testing (jessie) so my guess is
Ubuntu 14.x most probably works. You can check this with a live-CD - if
you don't have time to do so please tell me: I should find time to test
this on Thursday afternoon.

Greetings
Hermann