I've installed CentOS 6.3 on a new system. I've a nagging problem that I'm trying to fix---the screen resolution changes. I've a flat screen monitor that has 1600x900 capability. However when I logout and then log back in the resolution changes to 1280x1024. When I looked at the xorg.conf.d directory it was empty---both in /etc and in /usr/share.
Where is xorg.conf and it's monitor section now? BTW, I'm use KDE.
mw
On 08.10.2012 18:20, Mike Watson wrote:
I've installed CentOS 6.3 on a new system. I've a nagging problem that I'm trying to fix---the screen resolution changes. I've a flat screen monitor that has 1600x900 capability. However when I logout and then log back in the resolution changes to 1280x1024. When I looked at the xorg.conf.d directory it was empty---both in /etc and in /usr/share.
Where is xorg.conf and it's monitor section now? BTW, I'm use KDE.
mw
On Gnome you would use gnome-display-properties to set the resolution. Not sure if it works on KDE though.
Tried that. It's present in KDE, too. I've set it numerous times but the next time I logout and back in, the resolution drops to a lower density. Where is this value stored in 6.3. My previous box, Fedora 7 used Xorg but I can't find the Xorg.conf file for 6.3. All I've found so far is an empty directory.
mw
--
"Lose not thy airspeed, lest the ground rises up and smites thee." -- William Kershner http://crucis-court.com http://www.crucis.net/1632search
On 10/08/2012 12:38 PM, Nux! wrote:
On 08.10.2012 18:20, Mike Watson wrote:
I've installed CentOS 6.3 on a new system. I've a nagging problem that I'm trying to fix---the screen resolution changes. I've a flat screen monitor that has 1600x900 capability. However when I logout and then log back in the resolution changes to 1280x1024. When I looked at the xorg.conf.d directory it was empty---both in /etc and in /usr/share.
Where is xorg.conf and it's monitor section now? BTW, I'm use KDE.
mw
On Gnome you would use gnome-display-properties to set the resolution. Not sure if it works on KDE though.
On Mon, 08 Oct 2012 12:52:18 -0500 Mike Watson wrote:
My previous box, Fedora 7 used Xorg but I can't find the Xorg.conf file for 6.3. All I've found so far is an empty directory.
It's set automatically based on the EDID values provided by your monitor. You can create an xorg.conf file if you really need one, though.
On Mon, Oct 8, 2012 at 11:16 AM, Frank Cox theatre@melvilletheatre.comwrote:
On Mon, 08 Oct 2012 12:52:18 -0500 Mike Watson wrote:
My previous box, Fedora 7 used Xorg but I can't find the Xorg.conf file for 6.3. All I've found so far is an empty directory.
It's set automatically based on the EDID values provided by your monitor. You can create an xorg.conf file if you really need one, though.
You only have to put the exceptions in it. X will figure out most of what he needs himself. Ali
On Mon, 8 Oct 2012, Frank Cox wrote:
To: centos@centos.org From: Frank Cox theatre@melvilletheatre.com Subject: Re: [CentOS] X/Display resolution configuration
On Mon, 08 Oct 2012 12:52:18 -0500 Mike Watson wrote:
My previous box, Fedora 7 used Xorg but I can't find the Xorg.conf file for 6.3. All I've found so far is an empty directory.
It's set automatically based on the EDID values provided by your monitor. You can create an xorg.conf file if you really need one, though.
On Centos 5.8 I used system-config-display to generate an /etc/X11/xorg.conf file
Is this available on Centos 6.x ?
HTH
Keith
----------------------------------------------------------- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk
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system-config-display not found on my 6.3 system (new install.)
mw
--
"Lose not thy airspeed, lest the ground rises up and smites thee." -- William Kershner http://crucis-court.com http://www.crucis.net/1632search
On 10/08/2012 02:20 PM, Keith Roberts wrote:
On Mon, 8 Oct 2012, Frank Cox wrote:
To: centos@centos.org From: Frank Coxtheatre@melvilletheatre.com Subject: Re: [CentOS] X/Display resolution configuration
On Mon, 08 Oct 2012 12:52:18 -0500 Mike Watson wrote:
My previous box, Fedora 7 used Xorg but I can't find the Xorg.conf file for 6.3. All I've found so far is an empty directory.
It's set automatically based on the EDID values provided by your monitor. You can create an xorg.conf file if you really need one, though.
On Centos 5.8 I used system-config-display to generate an /etc/X11/xorg.conf file
Is this available on Centos 6.x ?
HTH
Keith
Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk
All email addresses are challenge-response protected with TMDA [http://tmda.net]
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Monday, 8. October 2012. 12.52.18 Mike Watson wrote:
On 10/08/2012 12:38 PM, Nux! wrote:
On 08.10.2012 18:20, Mike Watson wrote:
I've installed CentOS 6.3 on a new system. I've a nagging problem that I'm trying to fix---the screen resolution changes. I've a flat screen monitor that has 1600x900 capability. However when I logout and then log back in the resolution changes to 1280x1024. When I looked at the xorg.conf.d directory it was empty---both in /etc and in /usr/share.
Where is xorg.conf and it's monitor section now? BTW, I'm use KDE.
On Gnome you would use gnome-display-properties to set the resolution. Not sure if it works on KDE though.
Tried that. It's present in KDE, too. I've set it numerous times but the next time I logout and back in, the resolution drops to a lower density. Where is this value stored in 6.3. My previous box, Fedora 7 used Xorg but I can't find the Xorg.conf file for 6.3. All I've found so far is an empty directory.
KDE/Gnome is irrelevant, the monitor resolution is controlled by X. The proper way to troubleshoot these issues is to provide us with the output of "xrandr", and the complete log file /var/log/Xorg.0.log, for both the correct- and wrong- resolution sessions. It is possible that your monitor is not providing the correct EDID data, or you have two monitors plugged in at the same time, or something similar. Please provide the logs and describe your setup (graphics card, video driver, number of monitors, etc.), and then we should be able to tell you what is going on and why.
As for the xorg.conf file, it does not exist anymore by default, unless you create one yourself. The proper path is /etc/X11/xorg.conf . Write the part of configuration that you need customized (other stuff you can leave to be autodetected).
HTH, :-) Marko
Here's the output of "xrandr." My Xorg.0.log does not exist.
Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192 VGA1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 440mm x 250mm 1600x900 60.0*+ 1280x1024 75.0 60.0 1280x960 60.0 1280x800 59.8 1152x864 75.0 1280x720 60.0 1024x768 75.1 70.1 60.0 832x624 74.6 800x600 72.2 75.0 60.3 56.2 640x480 72.8 75.0 66.7 60.0 720x400 70.1 HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis)
My system will run the 1600x900 60.0*+ selection if I choose it at login. Otherwise it reverts to a lower selection 1280x1024.
mw
--
"Lose not thy airspeed, lest the ground rises up and smites thee." -- William Kershner http://crucis-court.com http://www.crucis.net/1632search
On 10/08/2012 01:21 PM, Marko Vojinovic wrote:
On Monday, 8. October 2012. 12.52.18 Mike Watson wrote:
On 10/08/2012 12:38 PM, Nux! wrote:
On 08.10.2012 18:20, Mike Watson wrote:
I've installed CentOS 6.3 on a new system. I've a nagging problem that I'm trying to fix---the screen resolution changes. I've a flat screen monitor that has 1600x900 capability. However when I logout and then log back in the resolution changes to 1280x1024. When I looked at the xorg.conf.d directory it was empty---both in /etc and in /usr/share.
Where is xorg.conf and it's monitor section now? BTW, I'm use KDE.
On Gnome you would use gnome-display-properties to set the resolution. Not sure if it works on KDE though.
Tried that. It's present in KDE, too. I've set it numerous times but the next time I logout and back in, the resolution drops to a lower density. Where is this value stored in 6.3. My previous box, Fedora 7 used Xorg but I can't find the Xorg.conf file for 6.3. All I've found so far is an empty directory.
KDE/Gnome is irrelevant, the monitor resolution is controlled by X. The proper way to troubleshoot these issues is to provide us with the output of "xrandr", and the complete log file /var/log/Xorg.0.log, for both the correct- and wrong- resolution sessions. It is possible that your monitor is not providing the correct EDID data, or you have two monitors plugged in at the same time, or something similar. Please provide the logs and describe your setup (graphics card, video driver, number of monitors, etc.), and then we should be able to tell you what is going on and why.
As for the xorg.conf file, it does not exist anymore by default, unless you create one yourself. The proper path is /etc/X11/xorg.conf . Write the part of configuration that you need customized (other stuff you can leave to be autodetected).
HTH, :-) Marko
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Monday, 8. October 2012. 15.54.19 Mike Watson wrote:
Here's the output of "xrandr." My Xorg.0.log does not exist.
That is very very weird. The log file should exist. Here is one of my machines:
[root@bojan ~]# ll /var/log/Xorg.0.log -rw-r--r--. 1 root root 31880 Sep 21 14:18 /var/log/Xorg.0.log [root@bojan ~]# uname -a Linux bojan 2.6.32-279.5.2.el6.x86_64 #1 SMP Fri Aug 24 01:07:11 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Note that "0" in the filename is the digit zero, not the capital letter O. Maybe the confusion is there.
Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192 VGA1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 440mm x 250mm 1600x900 60.0*+ 1280x1024 75.0 60.0 1280x960 60.0 1280x800 59.8 1152x864 75.0 1280x720 60.0 1024x768 75.1 70.1 60.0 832x624 74.6 800x600 72.2 75.0 60.3 56.2 640x480 72.8 75.0 66.7 60.0 720x400 70.1 HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis)
This looks perfectly normal. The 1600x900 resolution is the preferred default and active.
My system will run the 1600x900 60.0*+ selection if I choose it at login. Otherwise it reverts to a lower selection 1280x1024.
What do you mean by "choose at login"? How exactly are you logging in and where are you offered this choice?
HTH, :-) Marko
Login as normal via the linux login screen. The display is 1280x1024. I use the system config to change the display to 1600x900. All works until I logout. The next time I log in, the display has reverted to 1280X1024. It's as if, when I change the display to the higher value, it's not being retained---only for the duration of that session.
mw
--
"Lose not thy airspeed, lest the ground rises up and smites thee." -- William Kershner http://crucis-court.com http://www.crucis.net/1632search
On 10/08/2012 04:19 PM, Marko Vojinovic wrote:
On Monday, 8. October 2012. 15.54.19 Mike Watson wrote:
Here's the output of "xrandr." My Xorg.0.log does not exist.
That is very very weird. The log file should exist. Here is one of my machines:
[root@bojan ~]# ll /var/log/Xorg.0.log -rw-r--r--. 1 root root 31880 Sep 21 14:18 /var/log/Xorg.0.log [root@bojan ~]# uname -a Linux bojan 2.6.32-279.5.2.el6.x86_64 #1 SMP Fri Aug 24 01:07:11 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Note that "0" in the filename is the digit zero, not the capital letter O. Maybe the confusion is there.
Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192 VGA1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 440mm x 250mm 1600x900 60.0*+ 1280x1024 75.0 60.0 1280x960 60.0 1280x800 59.8 1152x864 75.0 1280x720 60.0 1024x768 75.1 70.1 60.0 832x624 74.6 800x600 72.2 75.0 60.3 56.2 640x480 72.8 75.0 66.7 60.0 720x400 70.1 HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis)
This looks perfectly normal. The 1600x900 resolution is the preferred default and active.
My system will run the 1600x900 60.0*+ selection if I choose it at login. Otherwise it reverts to a lower selection 1280x1024.
What do you mean by "choose at login"? How exactly are you logging in and where are you offered this choice?
HTH, :-) Marko
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Mon, 08 Oct 2012 16:51:17 -0500 Mike Watson wrote:
Login as normal via the linux login screen. The display is 1280x1024. I use the system config to change the display to 1600x900. All works until I logout. The next time I log in, the display has reverted to 1280X1024. It's as if, when I change the display to the higher value, it's not being retained---only for the duration of that session.
Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192 VGA1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 440mm x 250mm 1600x900 60.0*+
Does this command work?
xrandr --output VGA-1 --mode 1600x900x32
If so, you could add it to /etc/gdm/Init/Default. I think it will work if you add it just before the first gdmwhich() line, but you might have to do some experimenting.
I'll try that and let you know.
mw
--
"Lose not thy airspeed, lest the ground rises up and smites thee." -- William Kershner http://crucis-court.com http://www.crucis.net/1632search
On 10/08/2012 05:15 PM, Frank Cox wrote:
On Mon, 08 Oct 2012 16:51:17 -0500 Mike Watson wrote:
Login as normal via the linux login screen. The display is 1280x1024. I use the system config to change the display to 1600x900. All works until I logout. The next time I log in, the display has reverted to 1280X1024. It's as if, when I change the display to the higher value, it's not being retained---only for the duration of that session.
Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192 VGA1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 440mm x 250mm 1600x900 60.0*+
Does this command work?
xrandr --output VGA-1 --mode 1600x900x32
If so, you could add it to /etc/gdm/Init/Default. I think it will work if you add it just before the first gdmwhich() line, but you might have to do some experimenting.
Marko, after a reboot, I've found Xorg.0.log but it's VERY long...well over a thousand lines. Can I send it as an attachment to the mail list? I hate to just insert 1181 lines of text into an e-mail.
mw
--
"Lose not thy airspeed, lest the ground rises up and smites thee." -- William Kershner http://crucis-court.com http://www.crucis.net/1632search
On 10/08/2012 01:21 PM, Marko Vojinovic wrote:
On Monday, 8. October 2012. 12.52.18 Mike Watson wrote:
On 10/08/2012 12:38 PM, Nux! wrote:
On 08.10.2012 18:20, Mike Watson wrote:
I've installed CentOS 6.3 on a new system. I've a nagging problem that I'm trying to fix---the screen resolution changes. I've a flat screen monitor that has 1600x900 capability. However when I logout and then log back in the resolution changes to 1280x1024. When I looked at the xorg.conf.d directory it was empty---both in /etc and in /usr/share.
Where is xorg.conf and it's monitor section now? BTW, I'm use KDE.
On Gnome you would use gnome-display-properties to set the resolution. Not sure if it works on KDE though.
Tried that. It's present in KDE, too. I've set it numerous times but the next time I logout and back in, the resolution drops to a lower density. Where is this value stored in 6.3. My previous box, Fedora 7 used Xorg but I can't find the Xorg.conf file for 6.3. All I've found so far is an empty directory.
KDE/Gnome is irrelevant, the monitor resolution is controlled by X. The proper way to troubleshoot these issues is to provide us with the output of "xrandr", and the complete log file /var/log/Xorg.0.log, for both the correct- and wrong- resolution sessions. It is possible that your monitor is not providing the correct EDID data, or you have two monitors plugged in at the same time, or something similar. Please provide the logs and describe your setup (graphics card, video driver, number of monitors, etc.), and then we should be able to tell you what is going on and why.
As for the xorg.conf file, it does not exist anymore by default, unless you create one yourself. The proper path is /etc/X11/xorg.conf . Write the part of configuration that you need customized (other stuff you can leave to be autodetected).
HTH, :-) Marko
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On 10/08/2012 02:07 PM, Mike Watson wrote:
I hate to just insert 1181 lines of text into an e-mail.
You can always use pastebin.com or send the file to http://ge.tt
On Monday, October 08, 2012 01:20:41 PM Mike Watson wrote:
I've installed CentOS 6.3 on a new system. I've a nagging problem that I'm trying to fix---the screen resolution changes. I've a flat screen monitor that has 1600x900 capability. However when I logout and then log back in the resolution changes to 1280x1024. When I looked at the xorg.conf.d directory it was empty---both in /etc and in /usr/share.
Where is xorg.conf and it's monitor section now? BTW, I'm use KDE.
Double check your cable. I ran into a widescreen situation a whle back where one cable didn't work, but the cable that came with the monitor did. The EDID value comes from the monitor itself, and the cable must be able to support that in order for the automatic resolution code to properly figure out the resolution.
In the case I mention, even manually setting the resolution in xorg.conf didn't work, since the EDID was mangled by the cable.
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Lamar Owen Sent: den 8 oktober 2012 20:57 To: CentOS mailing list Subject: Re: [CentOS] X/Display resolution configuration
Double check your cable. I ran into a widescreen situation a whle back
where
one cable didn't work, but the cable that came with the monitor did. The EDID value comes from the monitor itself, and the cable must be able
to
support that in order for the automatic resolution code to properly figure
out the
resolution.
In the case I mention, even manually setting the resolution in xorg.conf didn't work, since the EDID was mangled by the cable.
I see a lot of EDID-errors when booting up CentOS6, this could be due to a faulty cable, even though it seems to work fine with other OS:es like Windows and CentOS5?
Is CentOS6 more "picky" with this EDID as compared to e.g. CentOS5?
-- /Sorin
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Ali Corbin -
Frank Cox -
Gordon Messmer -
Keith Roberts -
Lamar Owen -
Marko Vojinovic -
Mike Watson -
Nux! -
Sorin Srbu