Problems with Philips 151AX monitor (Suse 10.1)

[Andrew_Johnson]

Hi
I've just been given a Philips 151AX LCD monitor. Initially I was unable to get it to work once past the Grub screen. I kept getting 'Cannot support this mode'.
Persevering, I entered 'failsafe mode' and from root, I used sax2 to detect the monitor. I am now able to use this monitor from the KDE desktop.

However, the monitor still reports 'Cannot support this mode' from a text console, and gives the same report during the loading sequence, until the x-system is started.

I guess I need to edit something somewhere to force the machine to use a supported mode when using a text console and during the loading sequence.

Wondering if someone could point me in the right direction?

[abhishek456]

can you try using "vesa" as monitor in sax2 utility

[devils casper]

'Cannot support this mode'

Mode means Resolution and Resolutions are controlled by Refresh Rates and Video Driver.
First of all, try "vesa" driver as suggested by abhishek456.

Log in as normal user in Text Mode and Execute this

su
sax2 -m 0=vesa
exit
startx

In case, it doesn't work, Check your Monitor's Manual for supported HorizSync/VertRefresh rates and Resolutions. Set correct Resolutions ( Modes ) and Refresh rates in /etc/X11/xorg,conf file.

[gogalthorp]

In /boot/grub/menu.lst check the line starting with kernel

change or add vga= value from table below

Colours   640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200
--------+--------------------------------------------------------------
 4 bits |    ?       ?     0x302      ?        ?        ?         ?
 8 bits |  0x300   0x301   0x303    0x305    0x161    0x307     0x31C
15 bits |    ?     0x310   0x313    0x316    0x162    0x319     0x31D
16 bits |    ?     0x311   0x314    0x317    0x163    0x31A     0x31E
24 bits |    ?     0x312   0x315    0x318      ?      0x31B     0x31F
32 bits |    ?       ?       ?        ?      0x164      ?

You should probably pick the native resolution for your monitor

[devils casper]

gogalthorp is right. You have problems in Text Console only. Set correct vga value in kernel line. Try other suggestions only if vga does not solve problem.

[Andrew_Johnson]

gogalthorp is right. You have problems in Text Console only. Set correct vga value in kernel line. Try other suggestions only if vga does not solve problem.

Changing the value of vga to a supported mode on the monitor has given me back the text console again (CTRL-ALT-F1 etc.). Many thanks to all for your help.

Andrew Johnson

[devils casper]

Glad to help you !
Credit goes to gogalthrop only.