On Mon, Sep 24, 2018 at 2:38 PM, Franz <169...@gmail.com> wrote: > > > On Mon, Sep 24, 2018 at 1:11 PM, unman <un...@thirdeyesecurity.org> wrote: > >> On Mon, Sep 24, 2018 at 01:02:50PM -0300, Franz wrote: >> > On Qubes 3.2 had to add an External monitor because my Lenovo x230 >> laptop >> > display started flickering and slowing down. But the resolution on the >> > external monitor is wrong. What appears on screen is correctly high, but >> > too large to fit into the screen. >> > >> > Running xrandr gives the output on the enclosed photo. From that I >> imagine >> > that the resolution of the external monitor should be changed to >> 1366x768. >> > >> > But how do I do that? I spent a couple hours reading many old threads, >> but >> > they imply a knowledge I do not have, só cannot figure out. Also am >> afraid >> > of doing something wrong and loosing access to my computer. >> > >> > Any idea? >> >> I don't know what was in the photo. >> But you should be able to access these settings under the Qubes menu, >> System Settings, Display entry. >> >> > Thanks Unman, > I found it and it is pretty easy, but maximum resolution option for the > external monitor is 1024x768. Does this mean that for some reason it is > impossible to set 1366x768? >
Here are some old comments from Marek that suggest that something can be done, but they are somehow abstracted for me to be able to follow: "I'm not sure if the driver loaded at disk password prompt time is able to set higher resolution. But you can try with "video=" kernel parameter. For one-time test, you can edit kernel command line in grub (press "e" on the entry, go to "module /vmlinuz..." line and add the option at the end, then boot with ctrl-x). You can start with something like video=1920x1080 (or whatever resolution you want). Details about option syntax in kernel documentation. When you find the right value, you need to edit /etc/default/grub (GRUB_CMDLINE_LINUX line) in dom0 to make the change permanent. After editing this file, you need to regenerate actual grub configuration: grub2-mkconfig -o /boot/grub2/grub.cfg  https://www.kernel.org/doc/Documentation/fb/modedb.txt" <https://www.kernel.org/doc/Documentation/fb/modedb.txt> > -- >> You received this message because you are subscribed to the Google Groups >> "qubes-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to qubes-users+unsubscr...@googlegroups.com. >> To post to this group, send email to firstname.lastname@example.org. >> To view this discussion on the web visit https://groups.google.com/d/ms >> gid/qubes-users/20180924161109.d27vv63u7y55arvl%40thirdeyesecurity.org. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to email@example.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/CAPzH-qABBzsDpmTO40sgdbOtujtmh5aajRw%3DiPVDcvd%3DozQ2JQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.