Chvt , ALT-Fn, ALT-arrow fails with vga=xxx set
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
console-setup (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: console-setup
[Note: This may be related to bug #129910 , which I am sure everyone would love to see finally disappear as much as I would...]
Changing from tty1 to any other tty gives a blank screen with a blinking cursor when vga=xxx is specified.
Typing " setupcon " blindly restores the tty, but has to be typed on every tty change to make the screen output visible again. This occurs when using vesafb with vga=xxx on the boot line.
Tested on an install without X in virtualbox, and on the hardy Beta live CD on my hardware. Since, for example, feisty works correctly in both cases, this does not appear to be hardware-specific.
( Actually on the live CD using vga=791, *all* ttys were blank. ALT-F7 succeeded in accessing X/Gnome. )
lsb_release -rd
Description: Ubuntu hardy (development branch)
Release: 8.04
console-setup:
Installed: 1.21ubuntu4
Candidate: 1.21ubuntu4
Kernel:
linux-image-
Installed: 2.6.24-12.22
Candidate: 2.6.24-12.22
Expected behaviour:
On using ALT-F[1-6] , ALT -arrow , or chvt [1-6] , expected result is to see a login prompt, or automatic login on live CD, on the tty to which these apply.
Observed behaviour:
On first booting, a login prompt appears on tty1 as expected. Changing to another tty results in a blank screen with a blinking cursor.
Steps to reproduce:
Boot hardy with a vga=xxx option on the grub kernel line (quiet and splash removed)
(tested here: vga=788 , vga=791 )
Attempt a tty change as above.
Try typing "setupcon" blindly in the resulting vacuum...
Expected result of `setupcon` : some complaints, followed by magical reappearance of tty text...
Now change back to tty1. Where did it go? Exercise for the reader...
Wild Guess: This may be something to do with "setupcon" not being correctly called during boot, or some weirdness associated with getty ??
Other possible package: console-tools ?
description: | updated |
description: | updated |
This bug may be a duplicate of Bug #201591 , but appears to affect vesafb as well.