An old thread, I know but I've experienced similar problems. After upgrade from Ubuntu 14.04.3 to 16.04.1 with Xmonad window manager certain undesirable symptoms began to arise. Of course, fglrx was be removed and the xserver-xorg-driver-ati(?) graphics driver was installed instead. In 14.04 I was running the proprietary driver for the Intel part of the hybrid card. After upgrading some icons appear very large while others are normal. The laptop also runs about fifteen degC hotter. This is the most troubling aspect as it is detrimental to the health of the machine.
I reverted to Ubuntu 14.04.3 with linux-image-xxx-lts-wily as the latest combination of Ubuntu and linux kernel compatible with fglrx. All very well until dirtyCOW arose, as this kernel is no longer supported. Question: Is this problem related to the others mentioned in this thread? Has there been a resolution since July 2016? The following information may help: Output of lspci -mm | grep VGA is: 00:01.0 "VGA compatible controller" "Advanced Micro Devices, Inc. [AMD/ATI]" "Richland [Radeon HD 8650G]" "Hewlett-Packard Company" "Richland [Radeon HD 8650G]" Output of sudo lshw -C video is *-display UNCLAIMED description: VGA compatible controller product: Richland [Radeon HD 8650G] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 1 bus info: pci@0000:00:01.0 version: 00 width: 32 bits clock: 33MHz capabilities: pm pciexpress msi vga_controller bus_master cap_list configuration: latency=0 resources: memory:d0000000-dfffffff ioport:5000(size=256) memory:f0400000-f043ffff *-display UNCLAIMED description: Display controller product: Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0 bus info: pci@0000:01:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi cap_list configuration: latency=0 resources: memory:e0000000-efffffff memory:f0300000-f033ffff ioport:4000(size=256) memory:f0340000-f035ffff Output of lspci -nnk | grep -i vga -A3 is 00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8650G] [1002:990b] DeviceName: RICHLAND (990B) Subsystem: Hewlett-Packard Company Richland [Radeon HD 8650G] [103c:1985] Kernel modules: radeon Am I right in understanding that though the radeon kernel module is loaded it is not being used? If so, what must I do to use it? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1080350 Title: 1002:9552 [Compaq Presario CQ61-320EG Notebook PC] CPU Overheating with ATI driver Radeon HD Mobility graphics To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/1080350/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp