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Hello people,
I'm having a really strange behavior with gnome-shell. The sound volume control applet freezes the system for a few seconds. Moreover, in the control panel, and despite the system has sound, no audio device appears. On the other hand whenever you connect or disconnect a USB-stick system freezes about 20 seconds.
But now comes the most fun, if I do CTRL + ALT + F3 and then a CTRL + ALT + F2 to gnome back, to all these problems go away, no freezes and the control panel sound device appears normally.
Perhaps gdm not launch gnome session properly in the beginning? Do any idea? Thank you.
PD: it is a laptop HP Pavilion DV6 with hybrid graphics.
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A partial "solution" is blaklisting radeon module.
/etc/modprobe.d/radeon.conf
blacklist radeonOffline