Valeu, funcionou:
antes:
[root]# lshw -C display
*-display UNCLAIMED
description: VGA compatible controller
product: Trinity [Radeon HD 7640G]
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:e0000000-efffffff ioport:3000(size=256)
memory:f0300000-f033ffff
temperatura:
2015-02-15 13:02:01 temp1: +90.0°C (crit = +255.0°C)
temp1: +90.6°C (high = +70.0°C)
2015-02-15 13:12:01 temp1: +93.0°C (crit = +255.0°C)
temp1: +94.2°C (high = +70.0°C)
2015-02-15 13:22:01 temp1: +91.0°C (crit = +255.0°C)
temp1: +90.5°C (high = +70.0°C)
2015-02-15 13:32:01 temp1: +94.0°C (crit = +255.0°C)
temp1: +93.2°C (high = +70.0°C)
2015-02-15 13:42:01 temp1: +92.0°C (crit = +255.0°C)
temp1: +93.5°C (high = +70.0°C)
2015-02-15 13:52:01 temp1: +93.0°C (crit = +255.0°C)
temp1: +91.5°C (high = +70.0°C)
depois:
[root]# lshw -C display
*-display
description: VGA compatible controller
product: Trinity [Radeon HD 7640G]
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 rom
configuration: driver=radeon latency=0
resources: irq:36 memory:e0000000-efffffff
ioport:3000(size=256) memory:f0300000-f033ffff
temperatura:
2015-02-15 14:52:01 temp1: +79.0°C (crit = +255.0°C)
temp1: +79.1°C (high = +70.0°C)
2015-02-15 15:02:01 temp1: +81.0°C (crit = +255.0°C)
temp1: +80.4°C (high = +70.0°C)
2015-02-15 15:22:02 temp1: +72.0°C (crit = +255.0°C)
temp1: +71.0°C (crit = +120.0°C, hyst = +90.0°C)
temp1: +72.2°C (high = +70.0°C)
[a hora do root está errada; ainda está no fuso GMT+3]
Alberto Monteiro