Bug 678971

Summary: [Juniper] ViewSonic VA2431wm not detected properly when used as secondary monitor
Product: [Fedora] Fedora Reporter: John Hopkins <johnnycobolns-fedora>
Component: xorg-x11-drv-atiAssignee: Jérôme Glisse <jglisse>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 14CC: fedora, mcepl, xgl-maint
Target Milestone: ---Keywords: Reopened, Triaged
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 679110 (view as bug list) Environment:
Last Closed: 2012-08-16 13:32:10 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
dmesg output
none
/var/log/messages
none
/var/log/Xorg.0.log none

Description John Hopkins 2011-02-21 06:01:13 UTC
Description of problem:

On my Fedora 14 workstation, My ViewSonic VA2431wm monitor is detected without issue.  However, when I connect that monitor to my ASUS notebook (via VGA adapter in both cases) and try to use it as a secondary monitor, it is not detected properly and only offers a maximum 1024x768 screen resolution instead of 1920x1080.

Version-Release number of selected component (if applicable):

Fedora 14.
Linux 2.6.35.9-64.fc14.x86_64 #1 SMP Fri Dec 3 12:19:41 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux


How reproducible:

Always.

Steps to Reproduce:
1. Connect VA2431wm monitor to VGA port on a notebook computer.
2. Open display preferences and note the maximum resolution is 1024x768.
3. 
  
Actual results:

Maximum resolution is 1024x768.

Expected results:

Maximum resolution should be 1920x1080.

Additional info:

I ran the following commands as root and was able to get full screen resolution out of the monitor:

# xrandr --newmode "1920x1080_60.00_hsync" 148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync
# xrandr --addmode VGA-0 "1920x1080_60.00_hsync"
# xrandr --output VGA-0 --mode "1920x1080_60.00_hsync"

Note: the modeline setting above was taken from my PC's Xorg log file with the monitor attached.

Comment 1 Remi Collet 2011-02-21 06:35:57 UTC
This issue is not related to monitor-edid which is not used by system, but only for "inventory" purpose.

Please, open a bug against the right component.

Comment 2 John Hopkins 2011-02-21 06:53:56 UTC
Remi, I am not familiar with the component layout of the Fedora project.  Can you please suggest which component this might fit under?

Comment 3 Matěj Cepl 2011-02-22 17:30:32 UTC
(In reply to comment #1)
> This issue is not related to monitor-edid which is not used by system, but only
> for "inventory" purpose.
> 
> Please, open a bug against the right component.

This is silly. Please, reassign next time to the right component (or you can ask, or just throw it in the approximate direction).

Comment 4 Matěj Cepl 2011-02-22 17:30:51 UTC
*** Bug 679110 has been marked as a duplicate of this bug. ***

Comment 5 Matěj Cepl 2011-02-22 17:32:34 UTC
Thanks for the bug report.  We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.

Please add drm.debug=0x04 to the kernel command line, restart computer, and attach

* your X server config file (/etc/X11/xorg.conf, if available),
* X server log file (/var/log/Xorg.*.log)
* output of the dmesg command, and
* system log (/var/log/messages)

to the bug report as individual uncompressed file attachments using the bugzilla file attachment link above.

We will review this issue again once you've had a chance to attach this information.

Thanks in advance.

Comment 6 John Hopkins 2011-02-23 04:09:01 UTC
Created attachment 480323 [details]
dmesg output

Comment 7 John Hopkins 2011-02-23 04:09:26 UTC
Created attachment 480324 [details]
/var/log/messages

Comment 8 John Hopkins 2011-02-23 04:10:08 UTC
Created attachment 480325 [details]
/var/log/Xorg.0.log

Comment 9 John Hopkins 2011-02-23 04:13:01 UTC
Hi, Matej.  I moved away the old logs, made the grub change, rebooted, and attached the resulting logs.  I don't have an /etc/X11/xorg.conf.

Thanks, and let me know if you need anything else.

Comment 10 Fedora End Of Life 2012-08-16 13:32:14 UTC
This message is a notice that Fedora 14 is now at end of life. Fedora 
has stopped maintaining and issuing updates for Fedora 14. It is 
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(Please note: Our normal process is to give advanced warning of this 
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