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Bug 208694 - X fails to start
Summary: X fails to start
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati
Version: rawhide
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: X/OpenGL Maintenance List
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: FC6Blocker
TreeView+ depends on / blocked
 
Reported: 2006-09-30 10:32 UTC by David Woodhouse
Modified: 2007-11-30 22:11 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2006-10-03 16:18:56 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)
existing xorg.conf (deleted)
2006-09-30 10:32 UTC, David Woodhouse 		no flags Details
Failing FC6 Xorg log (deleted)
2006-09-30 10:33 UTC, David Woodhouse 		no flags Details
Working FC5 Xorg log (deleted)
2006-09-30 10:35 UTC, David Woodhouse 		no flags Details
View All

Description David Woodhouse 2006-09-30 10:32:25 UTC 
After an upgrade from FC5 to FC6, X no longer starts.
Comment 1 David Woodhouse 2006-09-30 10:32:25 UTC 
Created attachment 137468 [details]
existing xorg.conf
Comment 2 David Woodhouse 2006-09-30 10:33:48 UTC 
Created attachment 137469 [details]
Failing FC6 Xorg log
Comment 3 David Woodhouse 2006-09-30 10:35:07 UTC 
Created attachment 137470 [details]
Working FC5 Xorg log
Comment 4 David Woodhouse 2006-09-30 10:38:18 UTC 
Note how FC5 detects the absence of BIOS and does DDC, identifies the monitors
correctly. And how FC6 thinks there's a Legacy BIOS -- which is rather
surprising on a Mac G5.
Comment 5 David Woodhouse 2006-09-30 11:15:15 UTC 
This works around it for me, but obviously I wouldn't suggest that it's a proper
fix.

--- xf86-video-ati-6.6.2/src/radeon_bios.c.orig 2006-09-30 12:14:26.000000000 +0100
+++ xf86-video-ati-6.6.2/src/radeon_bios.c      2006-09-30 11:58:34.000000000 +0100
@@ -71,7 +71,7 @@ Bool RADEONGetBIOSInfo(ScrnInfoPtr pScrn
        }
     }
 
-    if (info->VBIOS[0] != 0x55 || info->VBIOS[1] != 0xaa) {
+    if (1 || info->VBIOS[0] != 0x55 || info->VBIOS[1] != 0xaa) {
        xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
                   "Unrecognized BIOS signature, BIOS data will not be used\n");
        xfree (info->VBIOS);
Comment 6 David Woodhouse 2006-09-30 13:24:00 UTC 
Proper fix at
http://gitweb.freedesktop.org/?p=xorg/driver/xf86-video-ati.git;a=commitdiff;h=c979c7f87fc449cc9631820101edff82c3013e66

About to rebuild and test...
Comment 7 David Woodhouse 2006-09-30 13:36:44 UTC 
Works correctly on my G5:

(WW) RADEON(0): Not an x86 BIOS ROM image, BIOS data will not be used

Works correctly with a PC version of the Radeon too:

(II) RADEON(0): Legacy BIOS detected
Comment 8 David Woodhouse 2006-10-01 17:06:49 UTC 
Please also apply
http://gitweb.freedesktop.org/?p=xorg/driver/xf86-video-ati.git;a=commitdiff;h=145c716de6d42778e447581578f3e4db13c9a653

(see bug 207659)
Comment 9 Adam Jackson 2006-10-03 16:18:56 UTC 
Fixed in 6.6.2-4.
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