Re: X server in dom0: Bad VBT signature

["Cherry G. Mathew" <cherry.g.mathew%gmail.com@localhost>]

On 2 September 2012 13:14, rudolf <netbsd%eq.cz@localhost> wrote:
> Cherry G. Mathew wrote:
>>
>> On 31 August 2012 22:45, Pierre Pronchery<khorben%defora.org@localhost>  
>> wrote:
>>>
>>> On Wed, 29 Aug 2012 01:26:02 +0100, Cherry G. Mathew wrote:
>>>
>>>>> Pierre Pronchery wrote:
>>>>> - http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=46634
>>>>> -
>>>>> http://uberwall.org/bin/project/browse/101/UWvbiosdump?file=2FUWvbiosdump.c%2Cv&revision=1.1
>>>>> - http://mail-index.netbsd.org/port-xen/2012/04/thread1.html -
>>>>
>>>>
>>>> riz@ and I have found the breakage, if you're in a hurry you can try
>>>> backing out this commit:
>>>> http://mail-index.netbsd.org/source-changes/2011/11/06/msg028702.html
>>>
>>>
>>> I just did, and X starts properly - thanks a lot!
>>
>>
>> Wondering if anyone can test the following patch:
>
> [...]
>
> I've tried the patch with following results:
>   - starting X with vesa driver results in a graphical garbage displayed on
> the screen, where the X should be visible, it is possible to switch between
> this screen and text wscons screens
>   - starting X with intel driver results in "Fatal server error: Unknown GTT
> size value: 4e3eff2f" (the number seems to be always the same), last related
> lines from Xorg.0.log:
>
> [   110.905] (II) intel(0): Printing probed modes for output LVDS
> [   110.905] (II) intel(0): Modeline "1366x768"x60.0   72.30  1366 1414 1446
> 1526  768 771 776 790 (47.4 kHz)
> [   110.905] (II) intel(0): I2C device "HDMIDDC_C:ddc2" registered at
> address 0xA0.
> [   110.908] (II) intel(0): EDID for output HDMI-2
> [   110.908] (II) intel(0): Output VGA connected
> [   110.908] (II) intel(0): Output LVDS connected
> [   110.908] (II) intel(0): Output HDMI-2 disconnected
> [   110.908] (II) intel(0): Using sloppy heuristic for initial modes
> [   110.908] (II) intel(0): Output VGA using initial mode 1024x768
> [   110.908] (II) intel(0): Output LVDS using initial mode 1366x768
> [   110.908] (II) intel(0): Using default gamma of (1.0, 1.0, 1.0) unless
> otherwise stated.
> [   111.420] (WW) intel(0): remove MTRR a0000 - b0000
> [   111.440]
> Fatal server error:
> [   111.440] Unknown GTT size value: 4e3eff2f
>
> I've also hit another problem, I don't know, if it is related:
>   - dom0 with 512 MB RAM: switching between wscons text screen with 25 lines
> and text screen with 50 lines causes immediate panic (display is garbled;
> "blind" sync, ... savecore -n -Z ...: no core dump)
>   - dom0 with 6 GB RAM: switching is ok
>
> Kind regards,
>
> r.

Hi,

Thanks for testing - you probably dtrt, but just checking - was this
patch on top of a clean -current with no extra patches ?

-- 
~Cherry