X.org-update -> screen garbled / settings for xorg.conf?

Ewald Jenisch a at jenisch.at
Mon Feb 2 08:36:50 PST 2009

On Fri, Jan 30, 2009 at 11:30:02AM -0800, Luke Dean wrote:
> Me too.
> I started a thread a few days ago titled "Restarting new Xorg freezes
> system".
> My symptoms are the same as yours.
> I'm not running hald at all.
> I'm not using full-blown gnome, just windowmaker.
> I'm using the "radeon" driver on an ATI HD 4350
> I just tried switching to the "vesa" driver, and now I can stop and start
> X as much as I want with no problems whatsoever.
> I know that this was not a problem with the "radeon" driver prior to the
> Xorg update.


Did a few tests more:

1) Section "ServerLayout"
    Option "AllowEmptyInput" "false"
Section "Device"
       Driver      "radeon"
moused running
hald running

Result: X (gnome in my case) starts, mouse moves. Upon leaving X the
console is to something different than 80x25 lines - at least I can't
see about 2-3 lines on the bottom of the screen. However - as soon as
a start X again I get graphical junk on the display, mouse & keyboard
frozen, no switching of consoles nor can I log in via the net (ssh)

2) Same as 1) above however this time with
Driver "radeonhd"

Result: Almost the same as 1) above - only difference: When I leave X
the console comes back again to 80x25 lines. Hoever - like in 1) above
- the second attempt to start X ends in a machine completely frozen :-(

3) Same as 1) - this time with
Driver "vesa"

Result: Everything works - i.e. back and forth between X and
console. Sure enough working with Vesa is a workaround only given the
huge difference in speed between the Vesa- and radeon drivers.

4) Option "AutoAddDevices" "Off" under 'Section "ServerLayout"'
Driver      "radeonhd"

Result: X works only once (as in Tests 1&2 above). Second attempt to
start X gives a "frozen box" again.

As you already mentioned

o) no problem with VESA-Driver

o) no problems with radeon-driver prior to the Upgrade to X 7.4

Hope this helps someone out there to track things down.


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