Re: Bullseye installation problem (with Matrox GPU)

From	Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups	linux.debian.user
Subject	Re: Bullseye installation problem (with Matrox GPU)
Date	2021-07-07 15:20 +0200
Message-ID	<CyfD4-1Bj-3@gated-at.bofh.it> (permalink)
References	<CxRhp-3Yr-7@gated-at.bofh.it> <CxSQ9-4JS-5@gated-at.bofh.it> <CxZRD-DK-1@gated-at.bofh.it> <Cy1Tr-1LQ-3@gated-at.bofh.it> <Cy3LA-2RL-1@gated-at.bofh.it>
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> I did a little more experimenting and learned my G550 doesn't need
> nomodeset for the MGA X driver to work, but it only produces 1920x1080
> on my 2560x1440 screen, and xrandr still can't identify output names.

You can trying playing with "modelines" where you reduce the screen
refresh rate to 30Hz to keep the "dot frequency" below the card's limit.

Contrary to CRT, current displays tend not to need as high a refresh
rate to avoid flicker.  Of course a lower refresh rate may encounter
other problems (e.g. your display may simply refuse to display it).


        Stefan

Thread

Re: Bullseye installation problem Chris Bell <chrisbell@chrisbell.org.uk> - 2021-07-06 13:20 +0200
  Re: Bullseye installation problem "Andrew M.A. Cater" <amacater@einval.com> - 2021-07-06 15:00 +0200
    Re: Bullseye installation problem (with Matrox GPU) Felix Miata <mrmazda@earthlink.net> - 2021-07-06 22:30 +0200
      Re: Bullseye installation problem (with Matrox GPU) "Andrew M.A. Cater" <amacater@einval.com> - 2021-07-07 00:40 +0200
        Re: Bullseye installation problem (with Matrox GPU) Felix Miata <mrmazda@earthlink.net> - 2021-07-07 02:40 +0200
          Re: Bullseye installation problem (with Matrox GPU) Dan Ritter <dsr@randomstring.org> - 2021-07-07 14:00 +0200
          Re: Bullseye installation problem (with Matrox GPU) Stefan Monnier <monnier@iro.umontreal.ca> - 2021-07-07 15:20 +0200
  Re: Bullseye installation problem Chris Bell <chrisbell@chrisbell.org.uk> - 2021-07-06 19:50 +0200

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