Re: [Xen-users] VGA Passthru - FLR?

[Matthias <matthias.kannenberg@xxxxxxxxxxxxxx>]

Hi,

good news, since you said your winxp was able to boot with vga
passthrough just fine, your FLR seems to work fine and this might
'only' be a driver-related problem.

What you can do is deinstall your catalyst drivers. After rebooting,
Win7 will fallback on a windows-standard driver for the vga but when
it correctly says the vga name (like ATI Radeion HD whatever Series),
it actually is falling back to an older catalyst version which is
shipped per default with windows. I have found this much more stable
on reboots then the newest driver. Also, deinstall Catalyst / Vision
control center and at best everything the catalyst installer lets you
deinstall.

If vga passthrough works without all the drivers and you really want
the latest and greatest catalyst, i recommend not using the latest
13-1 because it creates a similar behavior you mentioned on my
machine. But catalyst 12-10 seems to work fine, so i would advice you
trying that one.


If it still doesn't work with deinstalled drivers, we can try a patch
i'm currently testing.. But this the patch is somewhat complicated to
install, let's stick with the simple things for the moment.

Also, your domU config still would be of help ruling out some
misconfiguration there..



2013/3/4 Guilherme Suzuki <suzuki.gui@xxxxxxxxx>:
> Sorry (hit send).
>
> So, the radeon device tells it couldnt start itself (code 10) and cirrus
> device take over.
>
> On Mar 4, 2013 1:37 PM, "Guilherme Suzuki" <suzuki.gui@xxxxxxxxx> wrote:
>
> Alright!
>
> First question: yes, it does work everytime I start the dom0 with my HD 7950
> freshly booted as the secondary VGA (it never worked as primary though).
>
> Using windows 7 ultimate 64bits, after rebooting due to windows update, the
> VGA won't work (only if I reboot dom0 as I said). Reaching the VM with VNC,
> the cirrus device seems to be okay, the radeon device tells me it co
>
> Using Windows XP sp3 I managed to reboot the VM several times and everything
> worked.
>
>
>>
>> On Mar 4, 2013 1:27 PM, "Matthias" <matthias.kannenberg@xxxxxxxxxxxxxx>
>> wrote:
>>
>> Hi there,
>>
> ...
>
>>
>> > Hey matthias, nice to meet you, buddy.
>> >
>
>> My problem: sometimes I have to reboot the dom0 (lame) ...

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