Same problem here. Also I can't turn on the Discrete video card as well. Here are some details.
--- VGA outputs of lspci -vv 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device 185e Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 52 Region 0: Memory at c0000000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at b0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 6000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: radeon --- Outputs of lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT] (rev ff) --- Outputs of cat /sys/kernel/debug/vgaswitcheroo/switch 0:IGD:+:Pwr:0000:00:02.0 1:DIS: :DynOff:0000:01:00.0 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to fglrx-pxpress in Ubuntu. https://bugs.launchpad.net/bugs/1315928 Title: Xorg. Unknown header type 7f AMD/Intel Status in “fglrx-pxpress” package in Ubuntu: Confirmed Bug description: When I try to install the fglrx on ubuntu 14.04, the last message said that the card is not recognize. The lspci -vv: VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-pxpress/+bug/1315928/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp