Bug 5793 - radeon: driver does not detect DVI monitor, though fglrx does
Summary: radeon: driver does not detect DVI monitor, though fglrx does
Status: RESOLVED WONTFIX
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: 6.8.2
Hardware: x86 (IA32) Linux (All)
: high normal
Assignee: Xorg Project Team
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-02-02 10:04 UTC by Saulius Menkevičius
Modified: 2006-02-23 01:44 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:


Attachments
Xorg.conf for fglrx configuration (2.33 KB, text/plain)
2006-02-16 09:45 UTC, Saulius Menkevičius
no flags Details
Xorg.conf for radeon configuration (2.23 KB, text/plain)
2006-02-16 09:45 UTC, Saulius Menkevičius
no flags Details
Xorg's log for fglrx configuration (151.52 KB, text/plain)
2006-02-16 09:45 UTC, Saulius Menkevičius
no flags Details
Xorg's log for radeon configuration (43.66 KB, text/plain)
2006-02-16 09:46 UTC, Saulius Menkevičius
no flags Details
Incomplete Xlog of with radeon, TMDS-NONE enabled (4.00 KB, text/plain)
2006-02-17 02:37 UTC, Saulius Menkevičius
no flags Details

Description Saulius Menkevičius 2006-02-02 10:04:49 UTC
After I tried to use xorg's radeon driver i was surprised it does not detect
my DVI monitor. ATI's proprietary fglrx driver works ok, though.
  I tried to override the "MonitorLayout", to no avail.

xorg.conf:
---------
Section "Device"
	Identifier	"radeon9100"
	Driver		"radeon"
	Option		"MonitorLayout" "TMDS, NONE"
EndSection

Section "Monitor"
	Identifier	"syncmaster970p"
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"radeon9100"
	Monitor		"syncmaster970p"
	DefaultDepth	24
	SubSection "Display"
		Depth		24
		Modes		"1280x1024"
	EndSubSection
EndSection

X.org's log:
--------------
X Window System Version 6.8.2 (Ubuntu 6.8.2-77 20051010174523 root@vernadsky.buildd)
Release Date: 9 February 2005
X Protocol Version 11, Revision 0, Release 6.8.2
Build Operating System: Linux 2.6.10 i686 [ELF] 
---- 8< ----
(II) RADEON(0): Primary:
 Monitor   -- NONE
 Connector -- VGA
 DAC Type  -- Primary
 TMDS Type -- NONE
 DDC Type  -- VGA_DDC
(II) RADEON(0): Secondary:
 Monitor   -- NONE
 Connector -- None
 DAC Type  -- Unknown
 TMDS Type -- NONE
 DDC Type  -- NONE
Comment 1 Alex Deucher 2006-02-14 06:55:24 UTC
can you attach your log and config?
Comment 2 Saulius Menkevi&#269;ius 2006-02-16 09:45:04 UTC
Created attachment 4615 [details]
Xorg.conf for fglrx configuration
Comment 3 Saulius Menkevi&#269;ius 2006-02-16 09:45:26 UTC
Created attachment 4616 [details]
Xorg.conf for radeon configuration
Comment 4 Saulius Menkevi&#269;ius 2006-02-16 09:45:57 UTC
Created attachment 4617 [details]
Xorg's log for fglrx configuration
Comment 5 Saulius Menkevi&#269;ius 2006-02-16 09:46:16 UTC
Created attachment 4618 [details]
Xorg's log for radeon configuration
Comment 6 Alex Deucher 2006-02-17 01:22:02 UTC
can you post a log (from the xorg radeon driver) with:
Option "MonitorLayout" "TMDS, NONE"
and
Option "MonitorLayout" "TMDS, CRT"
Comment 7 Saulius Menkevi&#269;ius 2006-02-17 02:37:12 UTC
Created attachment 4632 [details]
Incomplete Xlog of with radeon, TMDS-NONE enabled

It seems both the Xorg and kernel crashes when i enable the "MonitorLayout".
After some retries this is the part of logfile that survived the crash. I guess
it is incomplete, but couldn't get more of it.
I think the kernel crashes (or locksup) because 

Note that it's MonitorLayout option that causes the crash.. works okay without
it, and I can use CTRL-ALT-F1 to break to the console from X (and back) when
running with radeon driver.

The same thing (crash) happens with both
Option "MonitorLayout" "TMDS, NONE"
and
Option "MonitorLayout" "TMDS, CRT"
Comment 8 Alex Deucher 2006-02-17 03:35:33 UTC
Do you still get the crashes if you disable the dri? (comment out the Load dri
line in your modules section)
Comment 9 Saulius Menkevi&#269;ius 2006-02-17 04:19:55 UTC
(In reply to comment #8)
> Do you still get the crashes if you disable the dri? (comment out the Load dri
> line in your modules section)

Yep, it still crashes with MonitorLayout, if I disable dri.
If I comment out both "Load dri" and "Option MonitorLayout", I see no changes to
previous behaviour with "Load dri" enabled (no X display, but kernel and console
working).

I think I forgot to note, that when radeon boots up (without MonitorLayout
specified) the display behaves as if it was unplugged (goes to standby mode).
Comment 10 Saulius Menkevi&#269;ius 2006-02-23 20:44:15 UTC
OK, I think I can close this one,
as it WORKS with 7.0.0 (after upgrade to Ubuntu Dapper).
No MonitorLayout option needs to be specified even.

Thanks!


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