On Tue, 26 May 2020 at 16:19, Michael Hennebry < henne...@web.cs.ndsu.nodak.edu> wrote:
> On Tue, 26 May 2020, George N. White III wrote: > > > 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.. > > > 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 > > Yes. 64-bit. No. > > > 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. > > I upgraded from 2GB to 8GB. > > liveuser@localhost-live ~]$ lspci | head -3 > 00:00.0 Host bridge: Intel Corporation 82Q33 Express DRAM Controller (rev > 02) > 00:02.0 VGA compatible controller: Intel Corporation 82Q33 Express > Integrated Graphics Controller (rev 02) > 00:03.0 Communication controller: Intel Corporation 82Q33 Express MEI > Controller (rev 02) > This should be using the i915 driver, but https://unix.stackexchange.com/questions/110573/what-is-i915-modeset-1-for#110589 may explain some of your symptoms and has links to troubleshooting examples. I remember fighting with graphics on similar systems at work after they failed to run the new version of Windows. Ours had ATI cards but the drivers were buggy. I used to keep a collection of graphics cards for such situations, but in this case (with 2G RAM) I used them in headless mode. > [liveuser@localhost-live ~]$ > > > What does "env | grep wayland" give? > > liveuser@localhost-live ~]$ env | grep -i wayland > [liveuser@localhost-live ~]$ > > > What do you get from "xrandr" without options? > > liveuser@localhost-live ~]$ xrandr > xrandr: Failed to get size of gamma for output default > Screen 0: minimum 640 x 480, current 640 x 480, maximum 640 x 480 > default connected primary 640x480+0+0 0mm x 0mm > 640x480 0.00* > [liveuser@localhost-live ~]$ > > Note maximum 640 x 480 . > Expected when using VESA. > > > Are there errors in Xorg.0.log? > > Yes. > Expected for VESA. -- George N. White III
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