<div dir="ltr">I believe this has something to do with the way AMD switchable graphics and X interact, and changes (fixes?) in the new driver.<div><br></div><div>I have a Samsung Chronos 7 with AMD Radeon HD 7400M Series</div><div><br></div><div>I resolved it by doing 'aticonfig --px-igpu'  in conjunction with using the <span style="color:rgb(0,0,0);line-height:19.2000007629395px">fglrx device for my screen section in xorg.conf.</span></div><div><br></div><div>I tried the other permutations, but there's either no acceleration, or no mouse:</div><div><br></div><div>intel device in screen :  aticonfig --px-dgpu  [Mouse: yes  Acceleration: no]<br></div><div>intel device in screen :  aticonfig --px-igpu  [Mouse: yes  Acceleration: no]</div><div>fglrx device in screen :  aticonfig --px-dgpu  [Mouse: no   Acceleration: yes]<br></div><div>fglrx device in screen :  aticonfig --px-igpu  [Mouse: yes  Acceleration: yes]  !!<br></div><div><br></div><div><br></div><div>Current /etc/X11/xorg.conf:</div><div><br></div><div><div>Section "ServerLayout"</div><div><span class="" style="white-space:pre"> </span>Identifier   "aticonfig Layout"</div><div><span class="" style="white-space:pre"> </span>Screen    0  "aticonfig-Screen[0]-0" 0 0</div><div>EndSection</div><div><br></div><div>Section "Monitor"</div><div><span class="" style="white-space:pre"> </span>Identifier  "aticonfig-Monitor[0]-0"</div><div><span class="" style="white-space:pre"> </span>Option<span class="" style="white-space:pre"> </span>   "VendorName" "ATI Proprietary Driver"</div><div><span class="" style="white-space:pre"> </span>Option<span class="" style="white-space:pre"> </span>   "ModelName" "Generic Autodetecting Monitor"</div><div><span class="" style="white-space:pre"> </span>Option<span class="" style="white-space:pre"> </span>   "DPMS" "true"</div><div>EndSection</div><div><br></div><div>Section "Device"</div><div><span class="" style="white-space:pre"> </span>Identifier "aticonfig-Device[0]-0"</div><div><span class="" style="white-space:pre"> </span>Driver "intel"</div><div><span class="" style="white-space:pre"> </span>BusID  "PCI:0:2:0"</div><div>EndSection</div><div><br></div><div><br></div><div>Section "Device"</div><div><span class="" style="white-space:pre"> </span>Identifier  "aticonfig-Device[0]-1"</div><div><span class="" style="white-space:pre"> </span>Driver    "fglrx"</div><div><span class="" style="white-space:pre"> </span>BusID    "PCI:1:0:0"</div><div>EndSection</div><div><br></div><div>Section "Screen"</div><div><span class="" style="white-space:pre"> </span>Identifier "aticonfig-Screen[0]-0"</div><div><span class="" style="white-space:pre"> </span>Device   "aticonfig-Device[0]-1"</div><div><span class="" style="white-space:pre"> </span>Monitor   "aticonfig-Monitor[0]-0"</div><div><span class="" style="white-space:pre"> </span>DefaultDepth   24</div><div><span class="" style="white-space:pre"> </span>SubSection "Display"</div><div><span class="" style="white-space:pre"> </span>Viewport  0 0</div><div><span class="" style="white-space:pre"> </span>Depth   24</div><div><span class="" style="white-space:pre"> </span>EndSubSection</div><div>EndSection</div></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div></div>