On Tue, 26 May 2020 at 04:25, Michael Hennebry < henne...@web.cs.ndsu.nodak.edu> wrote:
> On Tue, 26 May 2020, Michael Hennebry wrote: > > > How do I get xrandr or something else to do what I want, > > i.e. change my resolution to 1440x900 > > when using the live DVD.. > > Note that since I using a live DVD, > changing a config file and > rebooting is not really an option. > > > It is what I have on Centos 7. > > That is where I got the numbers to use. > We can't provide useful answers without more details of your hardware. Were you running Centos 7 on the same HP Compac (sic) dc5800 Small Form Factor? If so were you using 32-bit or 64-bit CentoOS 7? Are you using a KVM switch? The dc5800 came in many configurations, with RAM as little as 2GB and optional graphics cards. Onboard graphics usually steals system RAM memory space, so with 64-bit OS and 2G RAM you could be stuck with low resolution. KVM switches sometimes fail to pass correct monitor details. What does "env | grep wayland" give? What do you get from "xrandr" without options? Are there errors in Xorg.0.log? I have an iMac with a Core 2 Duo CPU, ATI Mobility Radeon X1600 graphics, and 2G ram. It is very usable running 32-bit Linux Mint 19 with 1680x1050 Xorg graphics. Booting live 64-bit Fedora 30 from USB takes a very long time, and ends up using X11 graphics: [liveuser@localhost-live ~]$ env | grep wayland [liveuser@localhost-live ~]$ xrandr xrandr: Failed to get size of gamma for output default Screen 0: minimum 1680 x 1050, current 1680 x 1050, maximum 1680 x 1050 default connected primary 1680x1050+0+0 0mm x 0mm 1680x1050 77.00* With 64-bit linux the system is very slow and eventually gives a reboot popup blaming firefox -- probably due to the limited RAM. -- George N. White III
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