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#1 2008-05-06 02:23:07

fukawi2
Ex-Administratorino
From: .vic.au
Registered: 2007-09-28
Posts: 6,217
Website

Setting up a Desktop w/Widescreen

Hi all,

I've been having problems with my desktop - I recently 'upgraded' from a 17" 4:3 to a 19" Widescreen and Linux just doesn't seem to like it. I usually run Linux Mint on my desktop, and I've tried Foresight Linux with the same results. (I like having a "ready to go" distro on my desktop - I save Arch for my servers and laptop). As a side note, I don't like Foresight, esp Conary. I tried Foresight because Conary has rolling updates like Arch, but I can't get it to work!

Anyway, my problem... The GDM Login screen displays fine at 1440 x 900, and my desktop initially displayed corrected at 1440 x 900 but reverts to my old resolution of 1280 x 1024. It seems to revert after I leave the PC for a while and the display goes into power saving.

I upgrade with my home partition in-place and

rm -Rf ~/.gnome* ~/.X* ~/.x*

before I login using my original username.

My question is, does anyone have any pointers on how to get the Widescreen to work properly at 1440 x 900 and STAY that way? I'm going to ditch Foresight, and probably go to Arch, especially if I can fix this issue! smile

(I have asked this on the Foresight forum, but no replies there sad)

Last edited by fukawi2 (2008-05-06 02:23:43)

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#2 2008-05-06 03:24:05

dabski
Member
Registered: 2008-02-07
Posts: 101
Website

Re: Setting up a Desktop w/Widescreen

Can you please post your xorg.conf.

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#3 2008-05-06 08:46:39

synthead
Member
Registered: 2006-05-09
Posts: 1,337

Re: Setting up a Desktop w/Widescreen

Yeah, please post it (or let us know if you don't have one).

What you need to do is add your desired resolution to the Screen section.  You only really need to add it to the color mode you use (probably 24-bit).  Like this ...

Section "Screen"
    Identifier     "Screen 1"
    Device         "vidcard"
    Monitor        "monitor"
    DefaultDepth    24
    SubSection     "Display"
        Viewport    0 0
        Depth       8
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       16
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       24
        Modes      "1440x900" "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

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#4 2008-05-07 03:21:05

fukawi2
Ex-Administratorino
From: .vic.au
Registered: 2007-09-28
Posts: 6,217
Website

Re: Setting up a Desktop w/Widescreen

synthead wrote:

Yeah, please post it (or let us know if you don't have one).

What you need to do is add your desired resolution to the Screen section.  You only really need to add it to the color mode you use (probably 24-bit).  Like this ...

Thanks for the replies. I don't have SSH access to my home box so I'll try and post it when I get home tonight.

I'm not sure if that's the problem, since GDM displays properly...? I'll post it anyway smile

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#5 2008-05-07 08:09:37

fukawi2
Ex-Administratorino
From: .vic.au
Registered: 2007-09-28
Posts: 6,217
Website

Re: Setting up a Desktop w/Widescreen

Here it is...

# Xorg configuration created by system-config-display

Section "ServerLayout"
        Identifier     "single head configuration"
        Screen      0  "Screen0" 0 0
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "us+inet"
EndSection

Section "Monitor"
        Identifier   "Monitor0"
        ModelName    "LCD Panel 1440x900"
 ### Comment all HorizSync and VertRefresh values to use DDC:
        HorizSync    31.5 - 100.0
        VertRefresh  59.0 - 75.0
        Option      "dpms"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "vesa"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection

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#6 2008-05-07 08:20:25

fukawi2
Ex-Administratorino
From: .vic.au
Registered: 2007-09-28
Posts: 6,217
Website

Re: Setting up a Desktop w/Widescreen

Egads!!

I just restarted X and I've lost another resolution... I had a stretch 1280 x 1024 before, now the highest resolution I can have is 1024 x 768.

Bye bye Foresight!

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#7 2008-05-07 08:32:44

dabski
Member
Registered: 2008-02-07
Posts: 101
Website

Re: Setting up a Desktop w/Widescreen

Read synthead's post hes told you what to modify in your xorg.conf.

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#8 2008-05-08 22:16:57

synthead
Member
Registered: 2006-05-09
Posts: 1,337

Re: Setting up a Desktop w/Widescreen

fukawi2 wrote:

Here it is...

# Xorg configuration created by system-config-display

Section "ServerLayout"
        Identifier     "single head configuration"
        Screen      0  "Screen0" 0 0
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "us+inet"
EndSection

Section "Monitor"
        Identifier   "Monitor0"
        ModelName    "LCD Panel 1440x900"
 ### Comment all HorizSync and VertRefresh values to use DDC:
        HorizSync    31.5 - 100.0
        VertRefresh  59.0 - 75.0
        Option      "dpms"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "vesa"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection

Try:

# Xorg configuration created by system-config-display

Section "ServerLayout"
        Identifier     "single head configuration"
        Screen      0  "Screen0" 0 0
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "us+inet"
EndSection

Section "Monitor"
        Identifier   "Monitor0"
        ModelName    "LCD Panel 1440x900"
 ### Comment all HorizSync and VertRefresh values to use DDC:
        HorizSync    31.5 - 100.0
        VertRefresh  59.0 - 75.0
        Option      "dpms"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "vesa"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes "1440x900"
        EndSubSection
EndSection

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#9 2008-05-08 22:49:08

synthead
Member
Registered: 2006-05-09
Posts: 1,337

Re: Setting up a Desktop w/Widescreen

Hey, I think I found something else.  I noticed you're using the VESA driver, which will give you terrible support for your video card.  Many xorg video drivers will probe your monitor and set most of the settings up automatically.  If you simply have the correct driver package installed on your system, Arch will find the driver and use it. 

First, we need to find out exactly what you're running.  Install hwd (pacman -S hwd) and, as root, run "hwd -s".  In the list of information it will give you, it'll tell you exactly what card you're running.  There's a ton of drivers in the Arch repos that start with xf86-video-, for example, xf86-video-ati or xf86-video-mga.  Do a "pacman -Ss xf86-video" and it'll list out what's available.  Install what you think best matches your system and reboot your xorg server.

Don't forget to add your user to the "video" group!  As root: "gpasswd -a your_user_name video"

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#10 2008-05-09 01:16:34

fukawi2
Ex-Administratorino
From: .vic.au
Registered: 2007-09-28
Posts: 6,217
Website

Re: Setting up a Desktop w/Widescreen

synthead wrote:

Hey, I think I found something else.  I noticed you're using the VESA driver, which will give you terrible support for your video card.  Many xorg video drivers will probe your monitor and set most of the settings up automatically.  If you simply have the correct driver package installed on your system, Arch will find the driver and use it. 

First, we need to find out exactly what you're running.  Install hwd (pacman -S hwd) and, as root, run "hwd -s".  In the list of information it will give you, it'll tell you exactly what card you're running.  There's a ton of drivers in the Arch repos that start with xf86-video-, for example, xf86-video-ati or xf86-video-mga.  Do a "pacman -Ss xf86-video" and it'll list out what's available.  Install what you think best matches your system and reboot your xorg server.

Don't forget to add your user to the "video" group!  As root: "gpasswd -a your_user_name video"

Thanks for the info - I've dropped Foresight now and am in the process of installing Arch on my box. Having problems at the moment, but once I sort them I'll come back and go through this smile

Thanks all big_smile

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