Joseph, Thank-you for all the good information about LCD's and this system specifically. I'll report back with my results. Eric Joseph Sinclair wrote: > Eric Richardson wrote: > >> Hi, >> >> I trying to get Xwindows on Debian Sarge 3.1r0a working on a Dell >> desktop and LCD 19"(I think) monitor. The Graphics chip is 82865G >> with shared memory, I think :-(. The display is a Dell 2001FP with >> AGP. I went throught the install and selected a few different >> resolutions and got the following error. >> >> (EE) I810(0): No video BIOS modes for chosen depth. >> (EE) Screen(s) found, but none have a usable configuration. >> >> I reduced the bit depth from 24 to 16 and now it is running at >> 640x480 and 16 bit according to xwininfo. >> I ran xvinfo and it reports 1440x 1080 max depth 16. >> >> I tried to run base-config again but I can't find the part that >> configures X but I didn't move /etc/X11/XF86Config-4 aside first. >> I started to run dpkg-reconfigure xfree86-xserver and stopped because >> it was much more difficult than the install program. >> >> I'd like to start from the installer config as I figure I might have >> selected something wrong such as sane pixels and bit depths. >> I'm not sure what the program is in Sarge however. >> >> Also I don't understand LCDs well: do they only do a couple of >> resolutions such as the 640x480 and the 1440x1080? Other people have >> this setup running windows so I could see what there system will do. > > > LCD displays have only 1 resolution, period, called the "native" > resolution. All other (lower) resolutions are emulated by mapping one > or more LCD pixels to 1 display pixel. > It's always best to run an LCD panel at it's native resolution if > possible, since the mapping process is imperfect, and often degrades > image quality substantially. > If you must run at a lower resolution, always try use integer > factors. For example, if your system's native resolution is > 1600X1200, then the next lower acceptable > resolution would be 800X600, with exactly 4 LCD pixels mapped to each > display pixel (800X1200 or 1600X600 would also work well, but few > drivers support those > resolutions). > > The reason CRT's can run at different resolutions effectively is > because the blurring that normally occurs when the display phosphors > interact with the electron beam > compensates for the display artifacts that arise from emulating a > lower resolution. > > According to the specs for your monitor (Dell 2001FP), you should set > your system to 1600X1200 @ 60Hz. > > According to Intel, as long as you're running the latest (Dec. 29, > 2004) driver for Linux, you should either let the driver figure things > out, or declare 96M of Video Memory if it can't > figure things out on it's own. > The 865G uses system RAM for video memory, and dynamically > allocates/deallocates as needed. Expect to see a reduction in > available system RAM of around 64M most of the time. > The chipset should support 1600X1200 @ 60Hz with 24-bit color without > problems. > Intel uses the i810 driver for all of their chipset drivers in Linux > (they use a "unified" driver model), so don't worry if your 865G is > identified as an i810. > >> >> Since this is a shared memory graphics, do I need to do something >> special? It reported 206844KB available. What does this mean? >> >> Any insight and help would be appreciated. >> >> Eric >> >> >> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us >> To subscribe, unsubscribe, or to change you mail settings: >> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >> > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change you mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change you mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss