[lubuntu-users] SiS Graphics problems - lubuntu 18.04.3 LTS 32-bit

[Walter Lapchynski]

> On Wed, 29 Jan 2020 at 21:09, Walter Lapchynski <wxl at ubuntu.com> wrote:
On Sat, Feb 08, 2020 at 03:33:41PM +0000, Ian Bruntlett wrote:

> Thanks to your reply, I am much more familiar with cvt and xrandr. I used
> them to create a higher resolution mode but when I tried to activate it
> from the lubuntu GUI... nothing happened! It stayed in low-res mode.

That is truly strange. I just created a totally ridiculous 1111x777 mode
and it worked fine without a logout or reboot. Perhaps you're selecting
something the monitor is incapable of? `xrandr --query` will report
maximum resolutions, for example.

Or perhaps it's an issue with the kernel module…

> > running `modinfo` against the kernel module
> > (i.e. `modinfo -p sis_agp`) should give a whole list of available
> > settings. Check to see if there are differences. If there are, set the
> > installed system to match the live system.

> How do I change the installed
> system to match the live system?

You can do this temporarily with `modprobe` but it would probably just
be easier to add something like /etc/modprobe.d/sis.conf with `option
sis_agp OPTION`. Example: `option sis_agp agp_sis_agp_spec=1`. You can
read the manual on modprobe.d for mroe info if you need.

Oddly, it only seems to have two parameters, whereas my i915 has 39. I
also noticed there is some suggestion to [just use the vesa driver][2].

[1]:
https://askubuntu.com/questions/455888/low-resolution-on-lubuntu-14-04-sis
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