[lunar+] grub: no server specified, no suitable video mode found
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
grub2 (Ubuntu) |
Fix Released
|
High
|
Mate Kukri |
Bug Description
I'm bare-metal testing Kubuntu Lunar 23.04 on a collection of amd64 machines connected in an MPI cluster. Things have gone very smoothly indeed, despite it being still an alpha-release!
However, one machine (an elderly Dell Vostro 400) is showing a regression for Grub 2.06-2ubuntu16 compared with Kinetic 22.10. The following occurs during boot-up:
error: no server specified
no suitable video mode found
no video mode activated
The grub menu stubbornly displays at 640x480 (AMD Turks driving a LG 24EA52 1920x1080 monitor usually picks up just fine). Auto-detection no longer functions and manual changes to GRUB_GFXMODE are ignored.
X11 starts and KDE initializes as usual (and at the correct resolution), so the error message is somewhat cosmetic and doesn't seem to affect more modern machines. Nonetheless, it does seem a bug that could/should be corrected.
Best regards and thank you.
David Coe
tags: | added: lunar |
Changed in grub2 (Ubuntu): | |
status: | Incomplete → New |
status: | New → Triaged |
Changed in grub2 (Ubuntu): | |
importance: | Undecided → Medium |
Changed in grub2 (Ubuntu): | |
milestone: | none → ubuntu-23.10 |
summary: |
- lunar (alpha) grub "no usable video mode found" + [AMD][lunar] grub "no usable video mode found" |
summary: |
- [AMD][lunar] grub "no usable video mode found" + [AMD][lunar] grub: no server specified, no suitable video mode found |
summary: |
- [AMD][lunar] grub: no server specified, no suitable video mode found + [lunar] grub: no server specified, no suitable video mode found |
summary: |
- [lunar] grub: no server specified, no suitable video mode found + grub: no server specified, no suitable video mode found |
summary: |
- grub: no server specified, no suitable video mode found + [lunar+] grub: no server specified, no suitable video mode found |
tags: | added: foundations-todo |
Changed in grub2 (Ubuntu): | |
assignee: | nobody → Mate Kukri (mkukri) |
tags: | removed: foundations-todo |
To further confirm that grub2 2.06-2ubuntu16 (Lunar) has introduced a regression on 2.06-2ubuntu12.1 (Kinetic), at least on the Dell Vostro 400.
A. dual-booting Lunar and Kinetic from Kinetic's boot-manager auto-detects the 1920x1080 display with no diagnostics.
B. single-booting Lunar with it's boot-manager (2.06-2ubuntu16) back-graded with the set from Kinetic (2.06-2ubuntu12.1) also works just fine.
C. single-booting Lunar with the current (alpha) grub fails to auto-detect and defaults to 640x480 resolution with above diagnostics. I think it also fails to pick up alternative (breeze) grub themes.
Hope this helps! For the time being, I'll persevere with testing my MPI cluster with option B and apt-mark hold the grub package :-).
Regards
David Coe