Due to some instability issues I've had recently with Intel drivers and compiz (these are known), I decided to switch my Lenovo T400 over to Discrete Graphics mode and run with ATI for a while. In the process, I found something interesting. First, as is already known, neither the current OpenSource ATI drivers currently support 3D accelerated graphics on this chipset (ATI Radeon HD3400). You still only get 2D. But what was interesting is that I could get higher video resolutions than I thought possible by using the Radeon HD driver. This ThinkPad display is only supposed to support a maximum video resolution of 1440X900, which also reportedly is its native resolution. Moreover, the Radeon HD driver does not properly set video resolution to begin with (using system-config-display). This is partly how I stumbled across what I did. By editing xorg.conf, I found that I could use it to set a default maximum resolution of 1440X900. However, I found afterwards that I could then use the Screen Resolution applet (System --> Preferences --> Hardware --> Screen Resolution) to then set video resolutions that are much, much higher. I could go all the way to 2560X1600 (in 16:9 format) via this route if I wanted to, although I admit this is amazingly small on a 14" screen. You'll need a microscope to see it. I never liked 1440X900 on this machine anyway, so I welcomed being able to take advantage of the extra "screen real estate" 1680X1050 provides. But I don't understand why I can't set this resolution by default in X. Also, the regular OpenSource ATI driver refuses to go beyond 1440X900 under any circumstances. Does anyone have an explanation as to how and why this is possible with Radeon HD, but not the regular ATI driver? I'm assuming that the Radeon HD3400 will be supported in 3D Accelerated graphics mode soon by both of these, and perhaps ATI will finally get its act together with the fglrx drivers so they can be properly packaged without violating F10 packaging guidelines. In the meantime, I found this to be curiously interesting. Any ideas? Cheers, Chris -- ==================================== "Behind every double standard lies a single hidden agenda." --G. K. Chesterton -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
