laptop Fan Increase During Lock Screen

Recently switched to Fedora 18 from Fuduntu and I really like it a lot. The only real problem I'm having is that when the screen switches off after idling for so long the laptop fan will start running really loud. Once I log back in the fans idle back down to normal. I'm certain it has to do with the GPU drivers (this laptop has the AMD APU) but I'm not sure how to fix it. This doesn't happen every time but enough to be really annoying. It happened a lot when I was running Ubuntu 13.04. Any help would be much appreciated. Here is the result from lspci -k:

00:00.0 Host bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Complex
Subsystem: Hewlett-Packard Company Device 3568
00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI BeaverCreek [Radeon HD 6520G]
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: fglrx_pci
00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI BeaverCreek HDMI Audio [Radeon HD 6500D and 6400G-6600G series]
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: snd_hda_intel
00:04.0 PCI bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Port
Kernel driver in use: pcieport
00:05.0 PCI bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Port
Kernel driver in use: pcieport
00:06.0 PCI bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Port
Kernel driver in use: pcieport
00:11.0 SATA controller: Advanced Micro Devices [AMD] Hudson SATA Controller [AHCI mode]
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: ahci
00:12.0 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: ohci_hcd
00:12.2 USB controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11)
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: ehci-pci
00:13.0 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: ohci_hcd
00:13.2 USB controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11)
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: ehci-pci
00:14.0 SMBus: Advanced Micro Devices [AMD] Hudson SMBus Controller (rev 13)
Subsystem: Hewlett-Packard Company Device 3568
00:14.2 Audio device: Advanced Micro Devices [AMD] Hudson Azalia Controller (rev 01)
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: snd_hda_intel
00:14.3 ISA bridge: Advanced Micro Devices [AMD] Hudson LPC Bridge (rev 11)
Subsystem: Hewlett-Packard Company Device 3568
00:14.4 PCI bridge: Advanced Micro Devices [AMD] Hudson PCI Bridge (rev 40)
00:16.0 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: ohci_hcd
00:16.2 USB controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11)
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: ehci-pci
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 0 (rev 43)
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 3
Kernel driver in use: k10temp
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 6
00:18.6 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 5
00:18.7 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 7
01:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01)
Subsystem: Hewlett-Packard Company Device 1785
Kernel driver in use: ath9k
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller
Kernel driver in use: r8169
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
Subsystem: Hewlett-Packard Company Device 3568
Kernel driver in use: rtsx_pci