Slackware - InstallationThis forum is for the discussion of installation issues with Slackware.
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I am unable to change my screen resolution to 1280 x 1024. I have a 19" monitor but can not set it to anything above 1024 x 768. I installed Slackware 9.1 earlier today and am using Gnome. When I press <CTRL><ALT><+> I only changes to lower resolutions. At the moment I have both Slackware 9.1 and Red Hat 9 installed on my computer. I have used Red Hat for a couple of years at home but am new to Slackware. Red Hat 9 has no problem using the higher settings but I can not get Slackware to do that.
I also tried selecting Applications ---> Desktop Preferences ---> Screen Resolution. I was then given only three choices to choose between, they were 640 x 480, 800 x 600, and 1024 x 768. There were no higher resolution choices available.
Next, I tried using vi to look at the /etc/X11/XF86Config file. I tried adding "1280x1024" and "1152x864" to a line in the Display subsection. I changed that same line in each of the 8, 16, 24 and 32 color depth setting subsections. The line that I changed in each section ended up looking like this:
That change did not make any difference. I do not know much about editing the XF86Config file. But, I have tried comparing the XF86Config file in Red Hat 9 to the one in Slackware 9.1. One difference that I have noticed is that the Red Hat 9 version has a subsection called "Device" in which the "Driver" is listed as "nv". It also mentions the "BoardName as "NVIDIA GeForce 2 MX (generic)". It lists the "VideoRam" as 65536. Below is the most similar looking section that I could find in Slackware:
Identifier "VESA Framebuffer"
# Insert Clocks lines here if appropriate
Is that difference the problem? There may be other differences in the XF86Config files that I have not yet noticed. What should I do next? I did make a backup copy of my original XF86Config file by the way. If this file is the problem, do I need to edit it manually or is there some other tool that I can use instead?
P.S, I have not yet tried running xf86config or xf86cfg-textmode to reconfigure X-Windows. Should I try that next? Would xf86config also allow me to get the wheel on my PS2 mouse to work? At the moment I can click the wheel to past but, turning the wheel does not do anything.
Well, it has been several hours and nobody has yet responded. In the meantime I went to the Slackware.com webpage and read some about using xf86config. It suggests that I shoud use the command "SuperProbe" first to find out as much as possible about my monitor and video card before using xf86config. I tried typing SuperProbe while logged in a root and it said the command was not found. Next, I then tried searching for the command by typing this while I was at the root directory:
find -name SuperProbe
It did not find anything. Is SuperProbe no longer included with Slackware 9.1? I did a full install from the CDs that I ordered directly from Slackware. Perhaps I already know enough about my videocard and monitor to go ahead and use xf86config without running SuperProbe first. I know that it is a PNY Verto GeForce2 MX 400 AGP video card with 64MB SDRAM. I am not totally sure what the chipset is, although I believe it is probably a GeForce 2 MX 400 chipset. Perhaps I should use Google to check those details. The monitor is a 19" Phillips 109B. I know the vertical and horizontal sync and vertical refresh settings for both the monitor and video card. Below is the page that I found a few minutes ago that describles how to use xf86config. I had forgotten that there is both a file named XF86Config and a program named xf86config. I hope that works.
xf86config was able to fix the problem, the display is now set to 1280x1024. My 19" monitor now looks much better at that resolution. I used xf86config to create a new XF86Config file. I kept the original as a backup just in case I had to go back to it. The instructions for using xf86config in the book on the Slackware web page does not totally match what the program asks. I wish the Slackware.com website would update their instructions. But it worked. When I press <CTRL><ALT><+> I can now cycle through various other screen resolutions too.
The wheel on my mouse still does not work except for the click-paste thing.