Genode 15.08 NOVA Demo Blank Screen

[Thotheolh Tay]

Hi Norman,

I have successfully managed to launch the NOVA in demo with your
suggestions.

What other run options do I have besides demo ?
On 4 Sep 2015 10:41 pm, "Thotheolh Tay" <twzgerald at ...9...> wrote:

> Hi,
>
> I have not tried the workaround yet.
>
> My environment is a LinuxMint 17.2 64 bit in VirtualBox with Qemu which is
> the same as yours.
>
>
> On Fri, Sep 4, 2015 at 9:26 PM, Norman Feske <norman.feske at ...1...
> > wrote:
>
>> Hi Thotheolh,
>>
>> On 04.09.2015 15:08, Thotheolh Tay wrote:
>> > Do you need me to open a bug on the Github for this ?
>>
>> just out of curiosity, did my workaround work for you?
>>
>> I investigated the symptom a bit further by instrumenting Qemu
>> (hw/input/ps2.c). The function 'ps2_mouse_event' is called with bogus
>> arguments for dx and dy. It receives relative motion values in the order
>> of thousands. Normally one would expect single-digit numbers. Qemu now
>> tries to convert those values into a sequence of PS/2 packets. Because
>> the values are so extreme, a flood of PS/2 packets is generated, which
>> eventually triggers the overrun of an internal queue in our PS/2 driver.
>> This would never occur at a normal rate of events. The problem stems
>> from the fact that Qemu receives bogus motion events unless SDL's
>> DGAMOUSE parameter is set to 0. I am afraid that we won't be able to
>> solve or work around it within Genode. The problem lies somewhere in
>> libSDL or Qemu. Hence, opening an issue at our issue tracker seems futile.
>>
>> I guess that the problem only occurs when executing Qemu within a guest
>> OS. E.g., I am running Qemu on Linux inside VirtualBox. Is this similar
>> to your setup?
>>
>> Cheers
>> Norman
>>
>> --
>> Dr.-Ing. Norman Feske
>> Genode Labs
>>
>> http://www.genode-labs.com · http://genode.org
>>
>> Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden
>> Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth
>>
>>
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