[Bug 546578] Re: [RS480] black screen after a few user switches

[tanoloco]

Same problem here with a fresh installation of Lucid Lynx 10.04 final release:
Motherboard -> Intel D850GB (Garibaldi)
cpu -> Intel Pentium 4 - 2.0 GHz
graphic card -> ATI Radeon 9250 128 MB DDR

problem:
1. logged in as admin user
2. try to switch to any other user by pressing "switch user" under the menu of the Indicator Applet Session
3. get a blank screen with no pointer. alt+f7 no effect, ctrl+alt+f7 no effect, ctrl+alt+f1/f2 etc sometimes got a console mode sometimes not.

It seems a problem of memory: if I switch without any app opened
everything can go right, but if I just open some firefox windows and an
openoffice document and then try to switch sure I get the blank screen.

I tried to use the User Switcher panel applet, instead of the Indicator
Applet Session as suggested and it seems to go well with desktop effects
turned off. However even in this case if I close all the user sessions
through the User Switcher panel applet the gdm panel is no more shown
and can only press ctrl+f1 login and write sudo /etc/init.d/gdm restart
to get it.

Do you think this could be another bug to report?

-- 
[RS480] black screen after a few user switches
https://bugs.launchpad.net/bugs/546578
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