on 30/08/2011 19:50 Andriy Gapon said the following: > > I use Qemu 0.15.0 (via a FreeBSD qemu-devel-0.15.0 port) and observe the > following > problem with the screendump command. > > Environment: > - qemu started with a standard vga adapter emulation (not sure if this > important) > - SDL interface is used (not sure if this important) > - guest operating system uses the text mode > - monitor console is activated with Ctrl+Alt+2 > - screendump command is executed in the monitor console > > I observe the following effects in this case: > - contents of the guest screen is "dumped" over the monitoring console > - produced ppm file has only a single top-most line (of characters) from the > guest > screen > > It seems that the problem is caused in the vga_draw_text function in hw/vga.c. > The problem is that the dpy_update function is called for each line of text > and > only the first of such calls produces the ppm output. > > Perhaps in the case when full_update is true there should only be a single > dpy_update call for the whole screen. I think that this should produce a > complete > screen dump. Not sure if that would help with the guest screen contents being > draw over the monitor console.
I have to guess that this issue is not of interest to the active qemu developers? I will try to look into it some time myself, because I find the feature to be useful from time to time (if it worked). -- Andriy Gapon
