Hi, I recently bought the the same Laptop and I am also having these issues.
So I'll share my experience so far.
It seems as if the open source radeon driver* is crashing on boot, therefore doing the
indeed solves part of the problem.
echo "blacklist radeon" > /etc/modprobe.d/blacklist-radeon.conf
I am not sure why this happens (sry, forgot to make a copy of the dmesg output, where the crash is logged), but so far it seems that the radeon module succeeds to load afterwards:
With the module loaded, it is possible to switch, enable and disable the two graphic cards using "switcheroo' that comes into play when the driver is loaded:
sudo modprobe radeon
This statement turns on the integrated graphics card, and disabled the radeon.
sudo su -c 'echo ON > /sys/kernel/debug/vgaswitcheroo/switch; echo IGD > /sys/kernel/debug/vgaswitcheroo/switch; echo OFF > /sys/kernel/debug/vgaswitcheroo/switch'
More details can be found here: https://help.ubuntu.com/community/HybridGraphics
In my case, the fan that was running all the time stopped within a few seconds.
Hope this helps.
In regard to https://help.ubuntu.com/community/HybridGraphics
. The problem of the fan running at full speed after reboot does not apply to my notebook, so I infer it does not apply to the whole series.
. The initramfs script, which should switch to the integrated graphics card, did not work for me, because at the time initramfs is executed, the radeon module has not been loaded yet, therefore '/sys/kernel/debug/vgaswitcheroo/switch' does not exist.
Note however, that the link points to a wiki page, so it might be updated soon.
* There is also the official catalyst one, but version 11.5 did not find the device.
I did not try to figure out if there was a workaround for this.