Wrestling Linux video drivers
Sep. 24th, 2017 07:05 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
mtbcThese days I no longer have to do remote system administration professionally but I still occasionally help out on a personal basis. With modern Linux systems I find it most awkward to help with font issues; perhaps I do not understand enough of GTK+ and whatnot for me to detect what is happening and why.
I have been working on a different longstanding display issue with a decade-old Nvidia graphics card: X.Org was persistently setting only a 1024×768 display mode and my various adjustments failed to change that. Of course, trying to fix display problems from a distance is rarely easy.
Yesterday I finally hit upon the culprit: in /etc/default/grub I found included among GRUB_CMDLINE_LINUX the option vga=791. This seems to cause the direct rendering manager to complain,
I have been working on a different longstanding display issue with a decade-old Nvidia graphics card: X.Org was persistently setting only a 1024×768 display mode and my various adjustments failed to change that. Of course, trying to fix display problems from a distance is rarely easy.
Yesterday I finally hit upon the culprit: in /etc/default/grub I found included among GRUB_CMDLINE_LINUX the option vga=791. This seems to cause the direct rendering manager to complain,
KMS not enabled. I guess that the VGA mode directive somehow gets in the way of the later mode-setting. I am afraid that it is all rather unobvious to me but at least this problem is now fixed.
