I sent the following message originally to the Debian maintainer of the xserver-xorg-video-ati package. He recommended that I send my question to this list.
---------- Forwarded message ---------- From: Thomas Vaughan <[EMAIL PROTECTED]> Date: Thu, Mar 27, 2008 at 1:57 PM Subject: radeon, M22 X300, a pair of monitors, and maximizing resolution with good performance To: [EMAIL PROTECTED] Hello, I saw your e-mail address on the changelog for xserver-xorg-video-ati. Please disregard this message if you are too busy to read it. :^) What I'd like to do is to maximize the resolution of my dual-monitor setup when my laptop is docked. I have a pair of 1600x1200 monitors, and, according to lspci, my laptop has an ATI Technologies Inc M22 [Mobility Radeon X300]. And I run Debian unstable. Anyway, it seems that if I want to do OpenGL stuff, such as to run a screensaver, then I really need to keep my total horizontal resolution under 2560 pixels. The screen saver puts garbage onto the right side of the display for columns greater than about 2560. What I'm doing to work around the problem is to use a virtual desktop size of 2560x1024. This is suboptimal because of the blurry effect of not using a resolution that matches the LCD panel's native resolution. So I thought that I might just rotate my two monitors and make a virtual desktop of 2400x1600. The problem that I encountered, however, was of painfully slow performance, even for ordinary 2D operations, like moving a window. Is there any way of setting up a pair of monitors in portrait mode with decent 2D and 3D acceleration, or is this just not supported? Unfortunately, mechanically putting my monitors one over the other, for a virtual size of 1600x2400, would require pieces of metal and a truss that I don't have. :^( -- Thomas E. Vaughan _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
