Re: xserver-xfree86 and GeForce 2 MX 400
On Thu, Nov 07, 2002 at 02:08:47AM +, Pigeon wrote: From README.cirrus out of XF86 4.2: On older chips, the use of a higher dot clock frequencies has a negative effect on the performance of graphics operations, especially BitBlt, when little video memory bandwidth is left for drawing (the amount is displayed during start-up for 542x/3x/46/6x chips). For the 542x/3x chips, with default MCLK setting (0x1c) and a 32-bit memory interface, performance with a 65 MHz dot clock can be half of that with a dot clock of 25 MHz. So if you are short on memory bandwidth and experience blitting slowness, try using the lowest dot clock that is acceptable; for example, on a 14 or 15 screen 800x600 with high refresh (50 MHz dot clock) is not so bad, with a large vir- tual screen. I guess the natural resolution speed is that which gives the best compromise between refresh rate and drawing performance. It's probably that which Windoze calls the optimal rate. I'd say this is fairly moot once you're getting into AGP 2x video cards with hundreds of MIPS of on-board CPU with dozens of megabytes of extremely fast RAM :) -rob msg11532/pgp0.pgp Description: PGP signature
Re: xserver-xfree86 and GeForce 2 MX 400
On Mon, Nov 04, 2002 at 06:01:49PM -0500, Dale Scheetz wrote: Turns out that only version 4.2.1 supports the GeForce 2 MX 400 graphics card from NVidia, but I can't get it to configure so the screen is not multiply overlapped (over frequency). I have one too, but it's working fine. The problem is, all I've found so far on the web is info suggesting that the natural resolution for this card is 2048 x 1536 75 Hz. What I need is a way to translate this information into refresh rates. I don't really know what the 'natural' resolution for a video card is. True, your card can probably handle that res, but it can also handle an order of magnitude below that. The screen is a Plug and Play Truecolor Monitor with 800 x 600 resolution. I think any video card you could find (old or new) these days would be able to drive that. You can't just tell debconf to use 800x600 at some arbitrary refresh rate? As someone else said, you'll need to find out some details about your monitor since it is the limiting factor here. -rob msg11145/pgp0.pgp Description: PGP signature
Re: xserver-xfree86 and GeForce 2 MX 400
On Mon, 4 Nov 2002, Joshua Lee wrote: On Mon, Nov 04, 2002 at 06:01:49PM -0500, Dale Scheetz wrote: The problem is, all I've found so far on the web is info suggesting that the natural resolution for this card is 2048 x 1536 @ 75 Hz. What I need is a way to translate this information into refresh rates. The screen is a Plug and Play Truecolor Monitor with 800 x 600 resolution. We need more information than that, a brand name and model number would help. Also, are you sure you don't want to get a new monitor? Monitors with higher resolution than 800x600, are available for real cheap now, and they would come with manuals and/or have online information for you to determine safe scan rates. This is a Profile, sort of a folded laptop, that is an all in one machine. I don't have any choice about the monitor or the graphics card, and the information I provided is all I have. I would love a better source of info. Gateway (the vendor) provides none. XP provided most of the info I have. The kernel provides the following in /proc/pci: VGA compatible controller: NVidia Unknown device (rev 178). Vendor id=10de. Device id=110. Medium devsel. Fast back-to-back capable. IRQ 10. Master Capable. Latenc I have been unable to find an NVidia site that does anything but sales. Aside from some good info sites, it would be great if someone else has had some experience with this graphics hardware and could talk about that some... Obviously, the information I'm missing is the correct values for Horizontal and Vertical refresh rates. These have always been easy to obtain from a CRT monitor, but I've never seen this level of tecnical detail of LCD's. All pointers appreciated, Dwarf -- No sig available in this venue -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
xserver-xfree86 and GeForce 2 MX 400
Finally, after over 7 months, I get my Profile 4 WITH a working DVD drive and I'm having a devil of a time getting an X server working. Turns out that only version 4.2.1 supports the GeForce 2 MX 400 graphics card from NVidia, but I can't get it to configure so the screen is not multiply overlapped (over frequency). I think my problem is that I'm forced to use the Medium config mode because I don't know the Horizontal and Vertical refresh rates for this machine and am forced to choose from the available resolutions. The problem is, all I've found so far on the web is info suggesting that the natural resolution for this card is 2048 x 1536 @ 75 Hz. What I need is a way to translate this information into refresh rates. The screen is a Plug and Play Truecolor Monitor with 800 x 600 resolution. When I plug this into dpkg-reconfigure as the best monitor resolution, I get a running X server, but all the screen modes are either chopped up horizontal bars, or chopped up vertical bars, or screens with blue lines separated by various numbers of black lines, crating various shades of dark blue. My questions are basically: 1. Is there a way to translate resolution into refresh rates? 2. Is there a site where I can expect to find this technical info on a wide variety of cards? 3. Has anyone actually made this hardware work? (How? ;-) Please CC me as I'm not subscribed to this list just now. All contributions welcomed! Thanks in Advance, Dwarf -- _-_-_-_-_- Author of Dwarf's Guide to Debian GNU/Linux _-_-_-_-_-_- _-_- _- aka Dale Scheetz Phone: 1 (850) 656-9769 _- _- Flexible Software 11000 McCrackin Road _- _- e-mail: [EMAIL PROTECTED] Tallahassee, FL 32308_- _-_- _-_-_-_-_- Released under the GNU Free Documentation License _-_-_-_- available at: http://www.polaris.net/~dwarf/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: xserver-xfree86 and GeForce 2 MX 400
On Mon, Nov 04, 2002 at 06:01:49PM -0500, Dale Scheetz wrote: The problem is, all I've found so far on the web is info suggesting that the natural resolution for this card is 2048 x 1536 @ 75 Hz. What I need is a way to translate this information into refresh rates. The screen is a Plug and Play Truecolor Monitor with 800 x 600 resolution. We need more information than that, a brand name and model number would help. Also, are you sure you don't want to get a new monitor? Monitors with higher resolution than 800x600, are available for real cheap now, and they would come with manuals and/or have online information for you to determine safe scan rates. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
