Red Hat Bugzilla – Bug 7551
Xconfigurator doesn't know Cyrix MediaGX can't do 1280x1024
Last modified: 2008-05-01 11:37:53 EDT
Running 6.1 on a machine with a Cyrix MediaGX chip and 64megs RAM.
Had an old monitor that X worked with. Got a new one:a Sony CPD-110EST.
Ran Xconfigurator and it told me it had found settings for it, but the
ones it suggested were 1280x1024x8bit. Although the monitor might cope,
I'm told the MediaGX has a limit of 1024x768.
Called in friendly neighbourhood hacker (every home should have one) to
sort it out. I'm now using an XF86Config with
this in it:
# 1024x768 @ 76 Hz, 62.5 kHz hsync
# Modeline "1024x768" 85 1024 1032 1152 1360 768 784 787 823
Modeline "1024x768" 85 1024 1040 1152 1360 768 784 787 823
This is working fine.
So far :)
Does this work in Red Hat Linux 6.2?
Xconfigurator doesn't have a way to specify minimum/maximum resolution (also a
problem with LCD displays) - intend to fix this with a planned rewrite.
Oh - and of course, the workaround is to select the resoultion you know your
computer can handle.
It does not work any better in 6.2.
The workaround only works if you are prepared to edit the
XF86Config file by hand. If I select combinations of resolutions
and depths in Xconfigurator, it claims to accept them and then
writes a non-working XF86Config.
Here is an update on the issue from Telsa, the reporter:
Date: Fri, 9 Feb 2001 08:44:37
From: Telsa Gwynne
Subject: Cyrix MediaGX text-mode upgrade: step right
It's not all doom and gloom: Xconfigurator --preferxf3 gets
Cyrix right. Woo-hoo! Thank you! (Please someone with privs,
#7551 so that everyone knows this is now working: unless you
see the other beta-team-only bug, you don't know that
was fixed for 7.0, and I keep meeting people with Cyrixes and
working X because they don't know there's a new