Increase Screen resolution to 1024 x 768

[habib2535]

Anyone can help me to progress here please ? i am stuck since 7 days on this :

I just installed the latest ubuntu 10.04 on a Toshiba-Tecra having "Trident Microsystems Cyberblade XP4m32" Monitor. After install resolution is defaulted to 800x600. I followed a method advised in some threads (arount xrandr and cvt) to increase the size (my laptop works with 1024x768 under XP). This was done OK and I obtained the resolution 1024X768 appearing in the drop list resolution options of the Monitor preferences but when I select the option if fails. Alternatively, when I execute
$ xrandr --output default --mode 1024x768_60.00
i got the message "xrandr : screen cannot be larger than 800x600 (desired size 1024X768)

I also saw a possible fix proposing to add "HorizSync 31.50-48.00" in Xorg.conf but I then I DO NOT have such a file in my /etc/x11/ after ubuntu install (supposing that this will fix my problem !!!)

Thanks to help me to progress

[anglican]

Anyone can help me to progress here please ? i am stuck since 7 days on this :

I just installed the latest ubuntu 10.04 on a Toshiba-Tecra having "Trident Microsystems Cyberblade XP4m32" Monitor. After install resolution is defaulted to 800x600. I followed a method advised in some threads (arount xrandr and cvt) to increase the size (my laptop works with 1024x768 under XP). This was done OK and I obtained the resolution 1024X768 appearing in the drop list resolution options of the Monitor preferences but when I select the option if fails. Alternatively, when I execute
$ xrandr --output default --mode 1024x768_60.00
i got the message "xrandr : screen cannot be larger than 800x600 (desired size 1024X768)

I also saw a possible fix proposing to add "HorizSync 31.50-48.00" in Xorg.conf but I then I DO NOT have such a file in my /etc/x11/ after ubuntu install (supposing that this will fix my problem !!!)

Thanks to help me to progress

Boot into recovery mode, when you get to the command line type:

sudo Xorg -configure

which will create a default /etc/X11/xorg.conf file. Add the lines:

        HorizSync       31.0 - 70.0
        VertRefresh     40.0 - 75.0

to the Monitor section then reboot.

H

[habib2535]

Thanks... It worked !!!

... and that was so simple !