Hey, On Thu, Mar 17, 2016 at 02:05:30PM +0800, feihu929@xxxxxxxx wrote: > In Windows or Linux guest os with qxl video card, when some window, > button or label call frequently update, the remote spice client will > display error background . The window, button or label will draw > background with the desktop image.Start the qemu with > SPICE_DEBUG_LEVEL, the vm log show large number update_area and > handle_dev_update_async function called.It seems that the update_area > and handle_dev_update_async funciton has some problem, maybe about > async display or surface canvas draw error? > For example , i am run matlab 2010 or matab 2012 in redhat 6.5 guest > os , when open toolboxes Curve Fitting -> Spline Tool , the problem > will happen. the attachment is the error screenshot image. What is the host OS? (in particular QEMU/spice-server versions). I assume the QXL driver you are running on the guest is the one shipped with RHEL 6.5? Have you been able to reproduce with other applications than matlab? (if this happens with anything shipped with RHEL or Windows, that would make reproducing/investigating much easier). Christophe
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