Mint 14 MATE 64 bit, battery issue + overheating

[jazz.h]

Hi!
I recently upgraded my Acer AO722 laptop by installing SSD. Win7 starter installed fine, Mint 14 KDE too, but it turned out KDE was too slow for my expectations - no difference between Mint 13 KDE on hdd and Mint 14 KDE on ssd. With open source radeon drivers and with ATI catalyst drivers.
So I decided to try Mint 14 MATE 64bit, no proprietary drivers. I can say it's way more faster and responsive, so I decided to try it a little longer, but I have one problem and I cant conclude if it's because of different kernel in Mint 14 (than in 13) or because of Mate itself.
When running on battery - everything is fine... temperature and performance.
When running on AC - temperature rises up to 10 degrees in Celsius and performance slightly begins to drop. Further more, it boots from cold boot, but when restarting with AC on, screen goes black right after grub menu and login screen never appears and fan is always on... have to hard power it down.
Should I install Jupiter or some kind of similar app?

[jazz.h]

Update:

Further more, it boots from cold boot, but when restarting with AC on, screen goes black right after grub menu and login screen never appears and fan is always on... have to hard power it down.

New moments...
Now I'm certain that this has nothing to do with powered DC on, blank screen happens when on battery too, mainly after reboot, but sometimes upon cold boot, too. It seems that the Mate has been loged in normally, just I don't see anything because the screen is black. As if it started with some wierd resolution the screen can not show. Please guys, advise, what log should I provide? I'm one step from away from trying with Mate 13...

[hugoleal85]

We need more details about your hardware (especially graphics card, cpu, and memory) to help you.

To get this kind of information, open terminal and type:
sudo lshw -short

[jazz.h]

Sure... here it is, thx...

Code: Select all

H/W path       Device     Class       Description
=================================================
                          system      AO722 (123456789)
/0                        bus         JE10-BZ
/0/0                      memory      1MiB BIOS
/0/24                     memory      2GiB System Memory
/0/24/0                   memory      2GiB SODIMM DDR3 Synchronous 1066 MHz (0.9 ns)
/0/24/1                   memory      SODIMM Synchronous [empty]
/0/2c                     processor   AMD C-50 Processor
/0/2d                     memory      128KiB L1 cache
/0/2e                     memory      1MiB L2 cache
/0/100                    bridge      Family 14h Processor Root Complex
/0/100/1                  display     Wrestler [Radeon HD 6250]
/0/100/1.1                multimedia  Wrestler HDMI Audio [Radeon HD 6250/6310]
/0/100/11                 storage     SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]
/0/100/12                 bus         SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
/0/100/12.2               bus         SB7x0/SB8x0/SB9x0 USB EHCI Controller
/0/100/13                 bus         SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
/0/100/13.2               bus         SB7x0/SB8x0/SB9x0 USB EHCI Controller
/0/100/14                 bus         SBx00 SMBus Controller
/0/100/14.2               multimedia  SBx00 Azalia (Intel HDA)
/0/100/14.3               bridge      SB7x0/SB8x0/SB9x0 LPC host controller
/0/100/14.4               bridge      SBx00 PCI to PCI Bridge
/0/100/15                 bridge      SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0)
/0/100/15.2               bridge      SB900 PCI to PCI bridge (PCIE port 2)
/0/100/15.2/0  eth0       network     AR8152 v2.0 Fast Ethernet
/0/100/15.3               bridge      SB900 PCI to PCI bridge (PCIE port 3)
/0/100/15.3/0             network     BCM4313 802.11b/g/n Wireless LAN Controller
/0/101                    bridge      Family 12h/14h Processor Function 0
/0/102                    bridge      Family 12h/14h Processor Function 1
/0/103                    bridge      Family 12h/14h Processor Function 2
/0/104                    bridge      Family 12h/14h Processor Function 3
/0/105                    bridge      Family 12h/14h Processor Function 4
/0/106                    bridge      Family 12h/14h Processor Function 6
/0/107                    bridge      Family 12h/14h Processor Function 5
/0/108                    bridge      Family 12h/14h Processor Function 7
/0/1           scsi0      storage     
/0/1/0.0.0     /dev/sda   disk        32GB Patriot Torqx 2
/0/1/0.0.0/1   /dev/sda1  volume      16GiB Windows NTFS volume
/0/1/0.0.0/2   /dev/sda2  volume      5119MiB Windows NTFS volume
/0/1/0.0.0/3   /dev/sda3  volume      9028MiB EXT4 volume
/1             wlan0      network     Wireless interface

[jazz.h]

Never mind, it's obvious it's a kernel issue.
Reverting back to M13...