Re: [Qemu-devel] vnc regression with -vga vmware

[Peter Lieven <lieven-lists@dlhnet.de>]

I found 2 issues:

- with vmware VGA the server surface and the client desktop size are out of sync for some time
at a resolution change. the server surface gets updates for x coordinates that are out of bound
for the client.
- the max width of the client (2360) is not dividable by 16 (VNC_DIRTY_PIXELS_PER_BIT).

I will try to fix this in ui/vnc but we should definetly look for the root cause.

Peter



On 17.03.2014 15:10, Serge Hallyn wrote:
> It does happen then as well (I suppose), but after X is done setting
> up, it happens every time I try to connect.
>
> Quoting Peter Lieven (pl@kamp.de):
>> Serge,
>>
>> can you confirm this happens at a resolution change?
>>
>> Peter
>>
>> On 17.03.2014 14:44, Gerd Hoffmann wrote:
>>> On Fr, 2014-03-14 at 11:06 -0500, Serge Hallyn wrote:
>>>> Hi,
>>>>
>>>> upstream git HEAD appears to have regressed with -vga vmware -vnc.
>>>>
>>>> If I run
>>>>
>>>> 	./qemu-system-x86_64 -enable-kvm -vnc :1 -m 1024 -cdrom ~/trusty-desktop-amd64.iso -vga vmware
>>>>
>>>> then tightvncviewer gives me:
>>>>
>>>> Connected to RFB server, using protocol version 3.8
>>>> No authentication needed
>>>> Authentication successful
>>>> Desktop name "QEMU"
>>>> VNC server default format:
>>>> 32 bits per pixel.
>>>> Least significant byte first in each pixel.
>>>> True colour: max red 255 green 255 blue 255, shift red 16 green 8
>>>> blue 0
>>>> Using default colormap which is TrueColor.  Pixel format:
>>>> 32 bits per pixel.
>>>> Least significant byte first in each pixel.
>>>> True colour: max red 255 green 255 blue 255, shift red 16
>>>> green 8 blue 0
>>>> Same machine: preferring raw encoding
>>>> Rect too large: 16x4 at (2352, 1766)
>>>>
>>>> gvncviewer simply says 'Disconnected from server'.
>>>>
>>>> It works fine if I don't use -vga vmware.
>>>>
>>>> I bisected it to commit 12b316d: ui/vnc: optimize dirty bitmap tracking
>>> Peter, that is yours, any idea what this is?
>>>
>>> cheers,
>>>    Gerd
>>>
>>>
>>
>> -- 
>>
>> Mit freundlichen Grüßen
>>
>> Peter Lieven
>>
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