KDE End current session hangs the machine

[Luka Renko]

After clean install of Kubuntu Dapper Flight 4 on HP Compaq nw8240 I cannot log-out (Log Out-> End Current Session) anymore. When I perform this function, I first get blank screen, following by greenish overcast on the screen.
At that point, machine is not responding to anything (switch to text console, Ctrl-Alt-Backspace, Ctrl-Alt-Del...) - the only thing I can do is hard reset. :-(

I do not recall having such problems with Flight 3 (which was regularly updated, therefore almost Flight 4 before reinstall), but I do not use this function that often (I do not recall using it recently before reinstall)

[Kenny Duffus (kduffus)]

Please could you try ending session with no programs open and see if the same thing happens?

If the above works you could see if you could narrow it down a specific program?

[Luka Renko (lure)]

It happens 100%, no matter of running programs (also immedeately after log-in). I think this is related to "fglrx" driver from ATI for my FireGL V5000 card. Similar problem is mentioned by another user in bug 31655

[fangorious (fangorious-deactivatedaccount)]

I only have problems with the OSS ati driver. The fglrx (8.22.5 built manually) works very well for me.

[Luka Renko (lure)]

I have now configured "ati" driver and I cannot get this problem with OSS "ati"driver (did at least 5-6 logouts + several reboots without problems), whille with "fglrx" driver I get this 100% on Logout (KDE End Session) and sometimes on shutdown/reboot (I would say 50% chance) - I have also seen it when doing /etc/init.d/kdm restart, therefore I would suspect this issue is linked with X server restart and specifically with fglrx driver.

[Luka Renko (lure)]

It happened alto with "ati" driver - but only once during resume from hibernate, just when it should switch to X display.

[Luka Renko (lure)]

I have also experienced this problem on Breezy today (for the first time) - and I am using Breezy from beta on.
I am using fglrx drivers from ATI site on breezy.
It just seems to me that this is some old bug, which is just a bit easier to trigger with X.org 7 in Dapper.

[Kenny Duffus (kduffus)]

still happening with dapper as of today

[Kenny Duffus (kduffus)]

affects various drivers probably more general

[Luka Renko (lure)]

Closing as duplicate as the other report is also on ATI with FireGL card.