I got an old (really old!) PC connected with VGA to my 2560x1440 monitor. I know VGA doesn’t quite reach that resolution but I’d like to be able to use 1920x1080 at least.
Initially the highest resolution I could select under KDE’s System Settings > Display Configuration was 800x600.
Figuring installing the NVIDIA-drivers would probably resolve this and I want them installed anyway I installed them, one restart later and now my resolution is stuck at 640x480, a step in the wrong direction!
Googled around a bit and found instructions on how to edit GRUB_GFXMODE in /etc/default/grub so I ran
kdesu kate /etc/default/grub
and changed ‘GRUB_GFXMODE=“auto”’ to ‘GRUB_GFXMODE=“1920x1080”’. Then I was supposed to run “sudo update-grub” but got a “command not found” but after reading some more and some trial an error I ran
sudo grub2-mkconfig -o /boot/grub2/grub.cfg
which hopefully did the same thing, rebooted… and nothing improved.
Read elsewhere that selecting the resolution in YaST > System Bootloader > Kernel Parameters > Graphical Console might do the trick. But it’s already set to 1920x1080 there. (And goes all the way up to 2048x1536 even which I think is where VGA tops out at).
Some other forum post here where someone had a similar problem was asked to run
which for me outputs:
HPPC@localhost:~> /usr/sbin/hwinfo --gfxcard 08: PCI 0d.0: 0300 VGA compatible controller (VGA) [Created at pci.386] Unique ID: qnJ_.KhsZnhCvVk0 SysFS ID: /devices/pci0000:00/0000:00:0d.0 SysFS BusID: 0000:00:0d.0 Hardware Class: graphics card Model: "nVidia GeForce 6100 nForce 430" Vendor: pci 0x10de "nVidia Corporation" Device: pci 0x03d0 "GeForce 6100 nForce 430" SubVendor: pci 0x103c "Hewlett-Packard Company" SubDevice: pci 0x2a6c Revision: 0xa2 Memory Range: 0xfb000000-0xfbffffff (rw,non-prefetchable) Memory Range: 0xe0000000-0xefffffff (ro,non-prefetchable) Memory Range: 0xfc000000-0xfcffffff (rw,non-prefetchable) Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled) IRQ: 7 (no events) I/O Port: 0x00 (rw) Module Alias: "pci:v000010DEd000003D0sv0000103Csd00002A6Cbc03sc00i00" Driver Info #0: XFree86 v4 Server Module: nv Config Status: cfg=new, avail=yes, need=no, active=unknown Primary display adapter: #8
Which doesn’t tell me much but hopefully adds some valuable info to my post.
I cannot use anything other than VGA as this motherboard (M2N68-LA) only has one graphical output, a vga port.
The monitor works fine, there’s 2 other PCs hooked up to it. One with openSUSE tumbleweed over DVI and one with Windows over displayport both doing whatever resolution I want them to (anywhere from 640x480 to 2560x1440).