[Libdlo] Menus don't appear / Unknown EDID version 0

[Alexander Todorov]

Hi all,
I'm testing multi-seat setup with GNOME 2.16 following the steps on the wiki
(with slight modifications to work on my distro).

The current biggest issue is that application menus do not appear properly. They
appear as thin white lines at the top left corner of the screen.

Manual testing didn't get me much further:
1) /usr/bin/Xorg -logverbose 9 :2 -br -audit 0 -nolisten tcp -novtswitch
-sharevts -config /tmp/tmp.zgnHgQ3453
2) export DISPLAY=:2
3) Start metacity
4) Start gcalctool

When I move the mouse pointer over the menu items I see those messages on the
console:

(gcalctool:3833): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width 238 and height -35

Also the Xorg.2.log has:
(WW) DL(0): FBIOPAN_DISPLAY: Invalid argument

and a big number of:
select returned 0

when moving the mouse pointer.


There doesn't seem to be any errors in the logs so I'm not sure how to proceed
testing this to find the root cause of the problem and possibly fix it.

Running `xrandr -o 0' as proposed by Bernie and in earlier threads results is:

# xrandr -o 0
(EE) DL(0): Unknown EDID version 0
(EE) DL(0): Unknown EDID version 0


When Xorg starts for the first time there is:
(II) DL(0): EDID Version: 1.3
followed by information about the attached display

If I kill -9 the X server on this display and start it again I get:

/usr/bin/Xorg -logverbose 9 :2 -br -audit 0 -nolisten tcp -novtswitch -sharevts
-config /tmp/tmp.zgnHgQ3453

X Window System Version 7.1.1
Release Date: 12 May 2006
X Protocol Version 11, Revision 0, Release 7.1.1
Build Operating System: Linux 2.6.18-128.1.16.el5 i686 Red Hat, Inc.
Current Operating System: Linux mini 2.6.18-164.6.1.el5 #1 SMP Tue Oct 27
11:30:06 EDT 2009 i686
Build Date: 22 July 2009
Build ID: xorg-x11-server 1.1.1-48.67.el5
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.2.log", Time: Thu Dec  3 19:03:13 2009
(++) Using config file: "/tmp/tmp.zgnHgQ3453"
(EE) DL(0): Unknown EDID version 0
(EE) DL(0): Unknown EDID version 0

Backtrace:
0: /usr/bin/Xorg(xf86SigHandler+0x81) [0x80cedc1]
1: [0x5c4420]
2: /usr/lib/xorg/modules/drivers/displaylink_drv.so [0x2de5fb]
3: /usr/bin/Xorg(InitOutput+0x9c5) [0x80a3eb5]
4: /usr/bin/Xorg(main+0x276) [0x8070546]
5: /lib/libc.so.6(__libc_start_main+0xdc) [0x943e9c]
6: /usr/bin/Xorg(FontFileCompleteXLFD+0x1fd) [0x806fa51]

Fatal server error:
Caught signal 11.  Server aborting

Can anyone explain what EDID is and why it is 0 sometimes and others not? I
think this is the root cause for my issues.

Thanks,
Alexander.