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

[Peter Lieven]

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 (address@hidden):
> > 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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