Looks like there was a bug ticket opened recently for this (plus a more recent duplicate) :
http://ati.cchtml.com/show_bug.cgi?id=555
Can you check if your PCI IDs are the same as the ones reported there (1002:6800) and if not please run atisysteminfo and add the output to the bug ticket ?
Thanks
In terminal:
lspci
To be more precise:
lspci | grep VGA
It may print something wrong (i.e. radeon 6k series. In that case, do an update-pciids in the terminal an run lspci | grep VGA again).
Anyway, thanks for opening this thread. I have the same issue as you (as I have posted in the bug report).
Notebook GPUs are often incompatible with AMD's drivers. Nobody forces them to use the same device ids or even build the hardware correctly.
on amd 7900m series page and driver page . It says that linux system are supported . I even download cataylst 12.8 by choosing 7xxxM series driver for linux and linux driver was present , so its fully supported . But its kinda sad for AMD not having to be functional for amd 7970M. There are also big problem too with amd 7970m enduro issue. Google it and see what is if you want to know more information
http://ubuntuforums.org/showthread.php?t=1930450/
When I bought my notebook I just hoped it would work. At that time I didn't know that much about hybrid graphics :/
ispci bring this :
00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Ivy Bridge PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4)
00:1c.2 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 3 (rev c4)
00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device 6800
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5289 (rev 01)
03:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 0a)
04:00.0 Network controller: Atheros Communications Inc. AR9300 Wireless LAN adaptor (rev 01)
05:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host Controller (rev 30)
lspci | grep VGA bring this
00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device 6800