[CentOS] CentOS 7 Anaconda GUI resolution

Fri Jul 11 01:01:12 UTC 2014
Daniel Johnson <djohnson at progman.us>

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Greetings!  I tried installing CentOS v7 (1406) to an old spare
machine, and the video card apparently don't play well with X.  It is
incorrectly saying that either monitor I connect is only able to
support 640x480, when one is 1024x768 and the other supports a higher
(but now forgotten) resolution.  In no way do I expect a fix to be
added just to support my antique.  :)

What I'd like to find, or have added to future CentOS installation
discs, is a way to force the GUI resolution.  Alternately, if nothing
below 800x600 will show the GUI properly perhaps the installer should
just forcibly set that as the minimum, no matter what the hardware
claims to allow?

Details of the hardware and such follow, let me know if you need more.
=-=-=-=-=-=

Under the normal boot from the normal DVD, graphics-mode output is
discolored and squashed to the left of the display.  In the "Basic
Graphics" troubleshooting mode the output is clear and proper, but
still just 640x480.

Server: Gateway E-9422R
Video card: Matrox Graphics MGA G200e, PCI 102b:0522

I captured the output of lspci, dmidecode, /tmp, and /var/log in both
Normal and Basic Graphics boot modes.  The file is 1,692,776 bytes and
has the following SHA1 checksum:

f9cd800ced963e29d0bb3e4381596dc3b61a4c4c
*CentOS7_InstallerResolutionProblem.tar.xz

It can be downloaded from this link:
  http://s000.tinyupload.com/index.php?file_id=55151826488339350948


Daniel Johnson
djohnson at progman.us
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