Re: Acer AL2216W under Linux ?

anton@xxxxxxxxxxxxxxxxxxxxxxxxxx (Anton Ertl) wrote:
a Matrox G450 is limited to 1280x1024 on DVI with standard modes.

I have a vauge memory of that even though this limitation is specified
by Matrox themselves the limitation is not in hardware but in the
Windows drivers only.

I theorized that this is due to limited bandwidth, and constructed a
1600x1200@52Hz mode that used the same bandwidth as a standard
1280x1024@60Hz mode, and got it to work with the monitor in this way.

Ah, so the solution was to use a driver capable of using a non-standard
mode. I didn't remember that much, however I did rememer that there was no
solution for my Windows user which had to go back to his old analog KVM
switch.

We had much better experience with the Radeon 7000 (proper support for
1600x1200 and 1920x1200 on DVI, with standard modes, with free drivers,
in the same old X version), and it's cheaper as well. No reason to buy
the G450.

Agreed. The Radeon cards up to 9250 have very good and stable drivers. I
once compared a Matrox G550 with a Radeon 9250 by running glxgears. I
wasn't surprised that the Radeon 9250 outperformed the Matrox card by far
in this simple OpenGL benchmark, however I was surprised that the Radeon
card with disabled hardware accelerated OpenGL still outperformed the
Matrox card with enabled hw accelerated OpenGL. I disabled hardware
acceleratio by setting the environment variable LIBGL_ALWAYS_INDIRECT=1.

regards Henrik
--
The address in the header is only to prevent spam. My real address is:
hc8(at)uthyres.com Examples of addresses which go to spammers:
root@xxxxxxxxxxxxx root@localhost

.

Relevant Pages

  • Re: =?ISO-8859-15?Q?L=FCfterlose?= Graphikkarte
    ... die sowohl einen VGA als auch einen ... DVI Ausgang bietet und durch Linux problemlos unterstützt wird ... Jetzt scheint es bei Matrox die Millennium P ... RV280 Radeon 9200PRO/9200/9200SE, M9+ ...
    (de.comp.os.unix.linux.hardware)
  • Re: Monitor flimmert extremst
    ... Hallo Wolfram, schau' mal meine Antwort soeben an Martin an und dort ... Eine der genannten Matrox oder eine Radeon ... Bei den genannten Typen hast Du bessere Karten, ...
    (de.comp.hardware.graphik)
  • Re: Frage zu ATI Radeon 9600 XT-4
    ... Gigabyte sein, ... Ich überlege nun, die anstelle meiner ollen Matrox P650 einzubauen, da ... Radeon 9600 in meinem Powermac G5 mit einem recht kompakten Passiv-Kühlkörper versehen. ...
    (de.comp.hardware.graphik)
  • Re: 30-bit Color on 24-bit Hardware
    ... >>hardware behavioral differences between LCD and CRT ... On CRTs and LCDs, alike. ... No special hardware ... Matrox P650, which is like the baby brother of the Parhelia-- ...
    (sci.image.processing)