[Qemu-devel] QEMU display problem w/ in terminal server client (Windows XPHost)

[Qemu-devel] QEMU display problem w/ in terminal server client (Windows XPHost)

[Francois Rioux]

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I'm exploring QEMU Windows guests under Windows (XP Pro) host.  I've successfully installed W2000 Adv Server, BartPE as guests.
 
At some point, I've tried to launch and work with QEMU in a Remote Desktop  (terminal server, RDP) session. The result is the following:
 - No crash.  Both host and guest keep running.
 
But for the rest, it is not really usable because of the following problems.
 - Text mode display in the guest is displayed in the upper corner of the host in the terminal client window.  This regardless of where the QEMU window is positionned on the screen.  The same sometimes happens with the graphical mode, but not always.
 - The mouse does not behave properly in the QEMU window when QEMU has grabbed the mouse.
 
The text mode display (while booting) problem could not be an issue.  The mouse problem renders the Window based unusable.  The problem goes beyond just positionning in the window: when I move the mouse, the arrow inside the guest sometimes moves but not in a coordinated way.  It might cross the screen faster than the external mouse arrow but it does not always move up when the mouse moves up.  It would normally stick in the upper left corner of the QEMU window.
 
I know QEMU for Windows is in alpha but does anyone have a clue on why this happens and if it it can be fixed.
 
Thanks,
 
Francois.
 
 

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Re: [Qemu-devel] QEMU display problem w/ in terminal server client (Windows XPHost)

[Filip Navara]

Francois Rioux wrote:

> I'm exploring QEMU Windows guests under Windows (XP Pro) host.  I've 
> successfully installed W2000 Adv Server, BartPE as guests.
>  
> At some point, I've tried to launch and work with QEMU in a Remote 
> Desktop  (terminal server, RDP) session. The result is the following:
>  - No crash.  Both host and guest keep running.
>  
> But for the rest, it is not really usable because of the following 
> problems.
>  - Text mode display in the guest is displayed in the upper corner of 
> the host in the terminal client window.  This regardless of where the 
> QEMU window is positionned on the screen.  The same sometimes happens 
> with the graphical mode, but not always.
>  - The mouse does not behave properly in the QEMU window when QEMU has 
> grabbed the mouse.
>  
> The text mode display (while booting) problem could not be an issue.  
> The mouse problem renders the Window based unusable.  The problem goes 
> beyond just positionning in the window: when I move the mouse, the 
> arrow inside the guest sometimes moves but not in a coordinated way.  
> It might cross the screen faster than the external mouse arrow but it 
> does not always move up when the mouse moves up.  It would normally 
> stick in the upper left corner of the QEMU window.
>  
> I know QEMU for Windows is in alpha but does anyone have a clue on why 
> this happens and if it it can be fixed.

Try entering this on command line before running QEMU:
set SDL_VIDEODRIVER=*windib*

- Filip

Re: [Qemu-devel] QEMU display problem w/ in terminal server client (Windows XPHost)

[Filip Navara]

Filip Navara wrote:

> Francois Rioux wrote:
>
>> I'm exploring QEMU Windows guests under Windows (XP Pro) host.  I've 
>> successfully installed W2000 Adv Server, BartPE as guests.
>>  
>> At some point, I've tried to launch and work with QEMU in a Remote 
>> Desktop  (terminal server, RDP) session. The result is the following:
>>  - No crash.  Both host and guest keep running.
>>  
>> But for the rest, it is not really usable because of the following 
>> problems.
>>  - Text mode display in the guest is displayed in the upper corner of 
>> the host in the terminal client window.  This regardless of where the 
>> QEMU window is positionned on the screen.  The same sometimes happens 
>> with the graphical mode, but not always.
>>  - The mouse does not behave properly in the QEMU window when QEMU 
>> has grabbed the mouse.
>>  
>> The text mode display (while booting) problem could not be an issue.  
>> The mouse problem renders the Window based unusable.  The problem 
>> goes beyond just positionning in the window: when I move the mouse, 
>> the arrow inside the guest sometimes moves but not in a coordinated 
>> way.  It might cross the screen faster than the external mouse arrow 
>> but it does not always move up when the mouse moves up.  It would 
>> normally stick in the upper left corner of the QEMU window.
>>  
>> I know QEMU for Windows is in alpha but does anyone have a clue on 
>> why this happens and if it it can be fixed.
>
>
> Try entering this on command line before running QEMU:
> set SDL_VIDEODRIVER=*windib*

Gotta love Thunderbird ...
set SDL_VIDEODRIVER=windib (without the asterisks)

- Filip

Re: [Qemu-devel] QEMU display problem w/ in terminal server client (Windows XPHost)

[Francois Rioux]

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Thank you Filip,
 
It worked for the display.  
 
However, the mouse still behaves erratically.  It moves left to right, but not in a coordinated way with the physical mouse.  Worst, it won't move up or down.  Actually, it almost always moves up as it is stuck in the upper row of the terminal screen (the qemu window).
 
Obviously (?), the mouse cursor doesn't really get grabbed in the qemu window when in a terminal server session.  It may be that 2nd redirection that does not  resolve right.
mouse movement -> physical host -> terminal client window (qemu host) -> qemu guest window.
 
Any hint on what causes that?

Filip Navara <navaraf@reactos.com> wrote:
Filip Navara wrote:

> Francois Rioux wrote:
>
>> I'm exploring QEMU Windows guests under Windows (XP Pro) host. I've 
>> successfully installed W2000 Adv Server, BartPE as guests.
>> 
>> At some point, I've tried to launch and work with QEMU in a Remote 
>> Desktop (terminal server, RDP) session. The result is the following:
>> - No crash. Both host and guest keep running.
>> 
>> But for the rest, it is not really usable because of the following 
>> problems.
>> - Text mode display in the guest is displayed in the upper corner of 
>> the host in the terminal client window. This regardless of where the 
>> QEMU window is positionned on the screen. The same sometimes happens 
>> with the graphical mode, but not always.
>> - The mouse does not behave properly in the QEMU window when QEMU 
>> has grabbed the mouse.
>> 
>> The text mode display (while booting) problem could not be an issue. 
>> The mouse problem renders the Window based unusable. The problem 
>> goes beyond just positionning in the window: when I move the mouse, 
>> the arrow inside the guest sometimes moves but not in a coordinated 
>> way. It might cross the screen faster than the external mouse arrow 
>> but it does not always move up when the mouse moves up. It would 
>> normally stick in the upper left corner of the QEMU window.
>> 
>> I know QEMU for Windows is in alpha but does anyone have a clue on 
>> why this happens and if it it can be fixed.
>
>
> Try entering this on command line before running QEMU:
> set SDL_VIDEODRIVER=*windib*

Gotta love Thunderbird ...
set SDL_VIDEODRIVER=windib (without the asterisks)

- Filip


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Re: [Qemu-devel] QEMU display problem w/ in terminal server client (Windows XPHost)

[Francois Rioux]

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Ok.  Actually the mouse issue was just a problem of 'scaling' the amplitude of the movement.  With smaller and smaller windows, the cursor in the qemu window just goes at warp speed with even the smallest movement of the mouse.Also it seems easily go in the very high positive and negative values when it is out out the screen so there is just a small zone where the cursor really behaves almost normally expect very fast.
 
This is not related to development but here's how I've more than satisfactorily worked aroud the mouse issue during a Terminal session into the host.
 
To circumvent that problem, I enable redir to the guest TS (guest is W2kAS).  Works great, better than the qemu window: the mouse in under control and the mouse is not grabbed.  All I had to do was to -redir tcp:3390::3389 and connect to {hostip}:3390, with the right ports opened on my router.
 
That would work with any guest supporting TS (NT, 2000 Server, XP Pro).
 
Case closed.  Thank Filip for your help.
 

Filip Navara <navaraf@reactos.com> wrote:
Filip Navara wrote:

> Francois Rioux wrote:
>
>> I'm exploring QEMU Windows guests under Windows (XP Pro) host. I've 
>> successfully installed W2000 Adv Server, BartPE as guests.
>> 
>> At some point, I've tried to launch and work with QEMU in a Remote 
>> Desktop (terminal server, RDP) session. The result is the following:
>> - No crash. Both host and guest keep running.
>> 
>> But for the rest, it is not really usable because of the following 
>> problems.
>> - Text mode display in the guest is displayed in the upper corner of 
>> the host in the terminal client window. This regardless of where the 
>> QEMU window is positionned on the screen. The same sometimes happens 
>> with the graphical mode, but not always.
>> - The mouse does not behave properly in the QEMU window when QEMU 
>> has grabbed the mouse.
>> 
>> The text mode display (while booting) problem could not be an issue. 
>> The mouse problem renders the Window based unusable. The problem 
>> goes beyond just positionning in the window: when I move the mouse, 
>> the arrow inside the guest sometimes moves but not in a coordinated 
>> way. It might cross the screen faster than the external mouse arrow 
>> but it does not always move up when the mouse moves up. It would 
>> normally stick in the upper left corner of the QEMU window.
>> 
>> I know QEMU for Windows is in alpha but does anyone have a clue on 
>> why this happens and if it it can be fixed.
>
>
> Try entering this on command line before running QEMU:
> set SDL_VIDEODRIVER=*windib*

Gotta love Thunderbird ...
set SDL_VIDEODRIVER=windib (without the asterisks)

- Filip


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Qemu-devel@nongnu.org
http://lists.nongnu.org/mailman/listinfo/qemu-devel

		
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