Comment by ktm5j
5 hours ago
I'm a huge Sun dork, so I play around with OI every now and then.. but every time I try to use OI in libvirt I have a problem where the display is cut off. This only happens when using resolutions bigger than 1024x768, and if you mouse over to that area the screen will shift over to the missing bit, so it's sort of usable.. but maddening haha.
I'm pretty sure I can see the same thing happening in the picture of the sunray client they have on this page. The left hand side of the screen is cut off (you should see the clock and syspanel icons on the top left).
Anyone know why this happens? And how to fix it?
If I'm understanding you correctly, you have access to the entire desktop but some of it is off-screen at any given time, with the displayed area following the mouse?
This is a feature that some graphical desktops used to have back when 640x480 and 800x600 monitors were still common, the desktop resolution could be set independently of the display resolution, so you could have a larger framebuffer that your monitor presented a view in to. I recall some graphics drivers (Matrox for sure) added this to Windows 9x and called it "virtual desktop" and I know I've seen it on a few *nix platforms too.
I'd assume if the resolution adjustments work as expected below 1024x768 that whatever graphics driver OI is using in your VM only sees the virtual display as capable of 1024x768 at max and so it does this if directed to provide a larger desktop.
edit: apparently xrandr calls this "panning"