Bug 18620

Summary: Lack of Screen in ServerLayout makes X segfault
Product: xorg Reporter: Dan Williams <dcbw>
Component: Server/GeneralAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED WONTFIX QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Dan Williams 2008-11-18 20:19:19 UTC 
Section "InputDevice"
	Identifier "touchscreen"
	Driver "fujitsu"
	Option "device" "/dev/ttyS0"
	Option "DeviceName" "touchscreen"
	Option "MinX" "82"
	Option "MinY" "146"
	Option "MaxX" "4036"
	Option "MaxY" "3999"
	Option "SendCoreEvents" "On"
EndSection

Section "ServerLayout"
	Identifier "foobar"
	InputDevice "touchscreen" "CorePointer"
EndSection

with xorg-x11-server-Xorg 1.5.3-5.fc10 yields:

Backtrace:
0: /usr/bin/X(xorg_backtrace+0x3b) [0x812bc5b]
1: /usr/bin/X(xf86SigHandler+0x51) [0x80bcc81]
2: [0x130400]
3: /usr/bin/X(InitOutput+0x487) [0x80a3f77]
4: /usr/bin/X(main+0x279) [0x806b519]
5: /lib/libc.so.6(__libc_start_main+0xe5) [0x1a16d5]
6: /usr/bin/X [0x806ab01]


(11:13:04 PM) ajax: oh, except you probably specified a serverlayout that just mentions input devices, and no video devices
(11:13:11 PM) dcbw: ajax: ding ding ding
(11:13:12 PM) ajax: and then the code probably doesn't handle that
(11:13:24 PM) ajax: but the offending line is:
(11:13:28 PM) ajax:     GDevPtr configured_device = xf86ConfigLayout.screens->screen->device;
Comment 1 Peter Hutterer 2008-11-19 16:36:43 UTC 
Dupe of 16301?

Looks like fe5cf7cb00fd926cefff933adbdbceea7353f4c2 needs to get
cherry-picked, can you test this please?
Comment 2 Peter Hutterer 2009-01-08 20:45:37 UTC 
No reply for over 30 days. Closing.

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