Bug 12630

Summary: my DDC monitor is not detected properly
Product: [Retired] Red Hat Linux Reporter: David Balažic <david.balazic>
Component: anacondaAssignee: Matt Wilson <msw>
Status: CLOSED NOTABUG QA Contact: Brock Organ <borgan>
Severity: medium Docs Contact:
Priority: high    
Version: 7.1   
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: 2000-08-31 13:42:24 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
Just testing attachment creation
none
ddcprobe output for SUN CM751U none

Description David Balažic 2000-06-19 17:41:14 UTC
This or more or less the same as bug #9633.

During a gfx mode install from a CD my monitor is not properly detected.
There is an entry in the 'DDC Probed monitor' line named :
'HEI769b' , but he values are :
Horizontal : 60 , vertical : 31.5
That is first obviusly swapped around and second is not even near the 
monitors specs.
The monitor data obtained by PowerStrip under windows is :
--
Hyundai HT-7695B
max hor sync : 95kHz , max ver sync 150 Hz
EDID version 1.0
Model ID HEI769B
--

I also attached the output of ddcprobe.

Comment 1 David Balažic 2000-06-19 17:54:25 UTC
As attaching somehow doesn't work , I'm posting the ddcprobe output here:

VESA 3.0 detected.
OEM Name: NVidia
Vendor Name: NVidia
Product Name: Riva TNT
Product Revision: A0
Memory installed = 252 * 64k blocks = 16128kb
Supported standard modes:
        640x400x256
        640x480x256
        800x600x16
        800x600x256
        1024x768x16
        1024x768x256
        1280x1024x16
        1280x1024x256
        80x60 (text)
        132x25 (text)
        132x43 (text)
        132x50 (text)
        132x60 (text)
        320x200x64k
        320x200x16m
        640x480x64k
        640x480x16m
        800x600x64k
        800x600x16m
        1024x768x64k
        1024x768x16m
        1280x1024x64k
EDID ver. 1 rev. 0.
Manufacturer: HEI
ID: 769b
EISA ID: HEI769b
Serial number: 00000814.
Manufactured in week 8 of 1999.
Input signal type: sync on green, analog signal.
Screen size max 32 cm horizontal, 24 cm vertical.
Gamma: 2.000000.
DPMS flags: RGB, active off, suspend, standby.
Established timings:
        720x400 @ 70 Hz (VGA 640x400, IBM)
        640x480 @ 75 Hz (VESA)
        800x600 @ 60 Hz (VESA)
        800x600 @ 72 Hz (VESA)
        800x600 @ 75 Hz (VESA)
        1024x768 @ 87 Hz Interlaced (8514A)
        1024x768 @ 75 Hz (VESA)
Standard timing 0: 85 Hz, 640x480
Standard timing 1: 85 Hz, 800x600
Standard timing 2: 85 Hz, 1024x768
Standard timing 3: 60 Hz, 1280x960
Standard timing 4: 85 Hz, 1280x960
Standard timing 5: 60 Hz, 1600x1200
Standard timing 6: 75 Hz, 1600x1200
Detailed timing 0:
        Pixel clock: 55000000
        Horizontal active time (pixel width): 128
        Horizontal blank time (pixel width): 736
        Vertical active time (pixel height): 224
        Vertical blank time (pixel height): 306
        Horizontal sync offset: 32
        Horizontal sync pulse width: 96
        Vertical sync offset: 6
        Vertical sync pulse width: 8
        Dimensions: 64x496
Detailed timing 1:
        Pixel clock: 94800000
        Horizontal active time (pixel width): 256
        Horizontal blank time (pixel width): 1120
        Vertical active time (pixel height): 0
        Vertical blank time (pixel height): 808
        Horizontal sync offset: 48
        Horizontal sync pulse width: 96
        Vertical sync offset: 3
        Vertical sync pulse width: 1
        Dimensions: 64x496
Detailed timing 2:
        Pixel clock: 157500000
        Horizontal active time (pixel width): 256
        Horizontal blank time (pixel width): 1472
        Vertical active time (pixel height): 0
        Vertical blank time (pixel height): 1072
        Horizontal sync offset: 64
        Horizontal sync pulse width: 160
        Vertical sync offset: 3
        Vertical sync pulse width: 1
        Dimensions: 64x496
Detailed timing 3:
        Pixel clock: 202500000
        Horizontal active time (pixel width): 576
        Horizontal blank time (pixel width): 1584
        Vertical active time (pixel height): 176
  Vertical blank time (pixel height): 1074
        Horizontal sync offset: 64
        Horizontal sync pulse width: 192
        Vertical sync offset: 3
        Vertical sync pulse width: 1
        Dimensions: 64x496


Comment 2 David Balažic 2000-06-20 07:56:53 UTC
Created attachment 619 [details]
Just testing attachment creation

Comment 3 David Balažic 2000-07-03 10:10:14 UTC
Same in beta2.


Comment 4 Glen Foster 2000-07-18 19:11:36 UTC
This defect is considered MUST-FIX for Winston Beta-5

Comment 5 Glen Foster 2000-07-21 18:40:32 UTC
Does this defect still exist with (on) Winston beta-4?

Comment 6 Michael Fulbright 2000-07-27 18:35:24 UTC
Is this fixed in beta 5?

Comment 7 David Balažic 2000-08-16 09:31:58 UTC
Now ( beta5 ) the detected values are 40-95 and 50-150,
while they really should be 30-95 and 50-150.
Close, but still...

And the monitor appears under Hyundai and
not DDC-probed as before. Is that normal ?

Comment 8 David Balažic 2000-08-22 12:16:45 UTC
It is OK now in RC1.
Someone mark it as RESOLVED.

Comment 9 David Balažic 2000-08-31 13:34:51 UTC
Still not 100% OK ( RC1 ).

When booting the RC1 CD X11 comes up with 85 Hz vertical refresh,
meaning that it detected the monitor through DDC ( otherwise is uses
60 Hz ). But if I reboot and start all over it won't recognize it any
more. What's more , not even windows 98 will recognize it any more.
By turning the monitor off and back fixes it.

Looks like the DDC probing in anaconda somehow screws up the monitor.

I remember reading somewhere that after being queried in DDC2 mode,
the monitor will not answer DDC1 queries until reboot.
Maybe this is related.

I really need help about this, because I was thinking to send the
monitor to service, but then I discovered that only RH7 install CD
makes this problems, so I'm not sure anymore if the monitor is gone
bad or not.

Comment 10 David Balažic 2000-08-31 13:36:48 UTC
Another monitor is misdetected by RC1 installer.
This one is SUN CM751U.
The ddcprobe output is attached.

Comment 11 David Balažic 2000-08-31 13:42:23 UTC
Created attachment 3120 [details]
ddcprobe output for SUN CM751U