Radeon 7200 is an R100 chipset, supported by the "radeon" driver in the kernel. This is an open source driver included in Ubuntu 7.10 (and, indeed, all linuxes).
Ubuntu uses a 2.6 kernel by default, not 2.4 as specified (typo?). If your /etc/X11/xorg.conf has the
vesa driver, just edit that to say "radeon". (Assumes that "VEGA" is a typo for "vesa" and not "VGA".)
Same with RH7.2 - which is extreme legacy: do not use. You will have problems compiling things on this platform as it is
extremely old and out of date.
GATOS:
General
ATI
TV and
Overlay
Software suite for capturing video. Note: this is a set of application and utility programs, not drivers.
Go back to Ubuntu - enable the radeon driver.
Install gatos with:
sudo apt-get install gatos
From the man page, dosn't look like you actually
need MythTV with this.
Ref:
http://www.gossamer-threads.com/list...5759?page=last
... you as well I guess.
http://www.mythbuntu.org/
... Mythbuntu - ubuntu distro set up with everything mythtv related.