← Back to team overview

hybrid-graphics-linux team mailing list archive

Acer 4820TG can't suspend or hibernate after switching off GPU

 

I have an Acer TimelineX 4820TG with the intel I5 IGP and ATI 5650
GPU.  Using the acpi_call checked out from git, I do the following:

sudo insmod acpi_call.ko
./test_off.sh
Trying \_SB.PCI0.P0P2.PEGP._OFF works!

after that I can't suspend.  I have tried writing a script with

\_SB.PCI0.P0P2.PEGP._ON

followed by sudo rmmod acpi_call.ko

but that doesn't help.

The laptop hangs on hibernate.

It suspends fine, but hangs on the ubuntu screen when waking up.

-- 
To understand recursion, one must first understand recursion.



Follow ups