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Bug 17069

Summary: ATI M4 video on LCD not defaulting to 60Hz
Product: [Retired] Red Hat Linux Reporter: Dan Taylor <daniel_a_taylor>
Component: XconfiguratorAssignee: Preston Brown <pbrown>
Status: CLOSED RAWHIDE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 7.1CC: mick_tantasirikorn
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2001-01-29 21:17:25 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
XF86Config-4 for 1024x LCD
none
XF86Config-4 for 1280x LCD
none
XF86Config-4 for 1280x LCD
none
XF86Config-4 for 1400x LCD
none
XF86Config-4 for 1600x LCD none

Description Dan Taylor 2000-08-29 12:46:27 UTC
Dell Inspiron 8000 w/ ATI M4 video & sxga+ 1400x1050 LCD
RC2 + updated kudzu, Xconfigurator, + XFree86

When running Xconfigurator, if you let it probe, it wants to run 
1024x768x8bit color which will not work.  
If you manually select the 1400x1050, the sample X screen looks ok, 
however, when you save the configuration & startx, the screen is garbled.  
Manually editing the XF86Config-4 file the vertical refresh is set to 
70Hz.  If you change it to 60Hz, it works fine.

Comment 1 Trond Eivind Glomsrxd 2000-08-29 14:35:01 UTC
Probe is not a good solution for it (known, will be fixed in Xconfigurator
rewrite). As for the difference is between the sample screen and the final
screen, there shouldn't be any so I would love to know.

What do you change in the file?

Comment 2 Dan Taylor 2000-08-29 14:40:07 UTC
The only thing I edit is the vertical refresh & change from 70Hz to 60Hz

Comment 3 Trond Eivind Glomsrxd 2000-08-29 15:00:22 UTC
Exactly what do you change? What are the original lines, what are the new 
lines?

Comment 4 Dan Taylor 2000-08-29 17:10:28 UTC
Hmmm well it looks like I may have listed a bit of mis-information (sorry...), 
but I am not able to repeat exactly as above today.

When NOT probing, and choosing the Generic 1400X LCD, when you get to the 
selection process for resolution & color depth, 1400x1050 is not an option.  I 
can choose 1024x768 or 1280x1024 and when the test comes up it is distorted 
however, you can still click the yes button to accept it.  Then edit the 
XF86Config-4 and change:

"VertRefresh" from 50-70 to 50-60

AND Change Screen section to look like this:

	DefaultDepth 32
	Subsection "Display"
		Depth 32
		Modes "1400x1054"
	EndSubSection





Comment 5 Trond Eivind Glomsrxd 2000-09-26 21:57:32 UTC
Would this change in general be a good thing for this LCD screen? We don't have
access to any hardware like this...

Comment 6 Matt Wilson 2000-10-25 19:02:24 UTC
*** Bug 15190 has been marked as a duplicate of this bug. ***

Comment 7 Matt Wilson 2000-10-25 19:02:36 UTC
*** Bug 16533 has been marked as a duplicate of this bug. ***

Comment 8 Trond Eivind Glomsrxd 2000-12-04 22:41:12 UTC
ping?

Comment 9 Dan Taylor 2000-12-05 14:49:06 UTC
Sorry for the lack of updates on my part.  60Hz is ok on most of our LCD's.  At 
this point I have received more hardware to work with that is not prototype.  
It looks like we have to add custom mode lines to get some of these LCD's 
working now.  Also, I understand this driver is not supposed to work with 32bit 
color depth.  I will attach all the XF86Config-4 files for our different panel 
sizes.

Comment 10 Dan Taylor 2000-12-05 14:50:06 UTC
Created attachment 6050 [details]
XF86Config-4  for 1024x LCD

Comment 11 Dan Taylor 2000-12-05 14:50:47 UTC
Created attachment 6051 [details]
XF86Config-4  for 1280x LCD

Comment 12 Dan Taylor 2000-12-05 14:51:33 UTC
Created attachment 6053 [details]
XF86Config-4  for 1400x LCD

Comment 13 Dan Taylor 2000-12-05 14:52:07 UTC
Created attachment 6054 [details]
XF86Config-4  for 1600x LCD

Comment 14 Preston Brown 2001-01-29 19:00:03 UTC
Dan: I'm adding entries for these monitors to the monitor database, but would
you possibly be able to provide me with a windows .inf for these monitors or at
least the EDID ID strings associated with each monitor?  This would greatly aid
in autoprobing.

Comment 15 Preston Brown 2001-02-08 17:50:18 UTC
monitor definitions added.