black screen/X locking up after using ctrl+alt+f1 and then ctrl+alt+f7
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xorg (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Hello,
I'm having a problem with the X locking up/showing a black screen. This started in edge eft (ubuntu 6.10). Here is the repro sequence
1) Create 2 accounts 1 user account and 1 admin account
2) start ubuntu
3) at the login screen log on to the user account with limited privs
4) Then using the ui Applications-
5) login as the admin user
6) switch to the user account using ctrl+alt+f7 (you'll be prompted to enter the password since the screen gets locked)
7) play a movie or perform some other operation in the user account.
8) while the movie is playing switch back to the admin account using ctrl+alt+f8 or ctrl+alt+f9.
9) repeat steps 6 to 8, you'll see that eventually ctrl+alt+f8 and ctrl+alt+f9 will show a black screen for both the user and the admin accounts or the entire OS will freeze.
Note this seemed to have started in 6.10 and is still a problem, even in 7.04.
This is still a problem in 8.04
It can also be reproduced by switching between the console ctrl+alt+f1 and X ctrl+alf+f7. If you do this many times, eventually the black screen will appear when you try to switch to X.
description: | updated |
The fix.
Just use
/etc/init.d/gdm stop
Followed by
/etc/init.d/gdm start
This will restart the gdm and resolve the problem