If the problem is related to the BIOS, it might be that you didn't use the proper update procedure. Before and after updating the BIOS you should always enter the BIOS and load the "BIOS defaults". This prevents changes you made to your BIOS configuration from messing up stuff in the new BIOS.
Else I think there's something wrong with your ubuntu installation.
Which tool are you using to check at which temperatures the fan starts ?
Can you please describe what happens with your fan when you switch the power supply on and off ? on my system, as soon as I switch on power supply, the fan speed increases and gets louder (too much for me...). When I return on battery mode, the fan speed immediately reduces. So the fan speed is not controlled by the temperatures in this case.
lm-sensors (coretemp sensor) and conky to display the sensor readout on my desktop.
I just tried that. To my surprise the fan runs at the same speed. I'd swear I heard it slowdown after unplugging AC on other occasions.Can you please describe what happens with your fan when you switch the power supply on and off ? on my system, as soon as I switch on power supply, the fan speed increases and gets louder (too much for me...). When I return on battery mode, the fan speed immediately reduces. So the fan speed is not controlled by the temperatures in this case.
Hi every one,
I have a
3810TZ with U4100 2 cores Intel with ATI 4300 bios: 1.20
and my problem are:
-fan always on and air is hot
-battery last no more 2 hours ....
I install powertop and it says: 18.9W ... What can I do. It seems that Throttling is always on T0 100% (¿is that normal?)
To add more data: lspci with grep vga
Throttling:Code:00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series]
diretory /proc/acpi/fan/ is empty normal?Code:state count: 8 active state: T0 state available: T0 to T7 states: *T0: 100% T1: 88% T2: 75% T3: 63% T4: 50% T5: 38% T6: 25% T7: 13%
Code:*T0: 100%Cn Avg residency P-states (frequencies) C0 (cpu running) ( 4.6%) 1300 Mhz 0.0% polling 0.0ms ( 0.0%) 1200 Mhz 100.0% C1 mwait 0.4ms ( 0.4%) C4 mwait 1.7ms (95.0%) Wakeups-from-idle per second : 584.5 interval: 3.0s Power usage (ACPI estimate): 18.8W (0.8 hours) Top causes for wakeups: 55.1% (372.3) PS/2 keyboard/mouse/touchpad interrupt 11.6% ( 78.3) [extra timer interrupt] 11.3% ( 76.3) [i915] <interrupt> 9.0% ( 61.0) [kernel scheduler] Load balancing tick 2.5% ( 17.0) Xorg 2.2% ( 14.7) firefox-bin
Thanks for your help!!!
Have you modified the bios-settings to make sure only the discrete (ATI) graphics card is being used? Otherwise both cards will run simultaneously... Therefore switch graphics to "discrete". Then install the ati proprietary driver using jockey-kde and, further, the amd catalyst control center (see one of my previous posts). You shall be able to achieve less than 10 W without any further tuning (which can be found in this thread).
I have the same configuration and can barely ever hear the fan blowing!
PS: Deinstall all the openjdk stuff and install the sun java instead. This solved some issues concerning java and high cpu load.
thanks it works, I have less than 10W. I am pretty sure I can lower this value with some stuff I read in the forum.
Problem is that with discret under Win7 it's a total mess !!! Lot's of device are not working well (device manager says that) and max screen resoltion is not good ...
There is no trick to have bios in switchable and disable it from ubuntu ?
Short answer: As far as I know you cannot use switchable in linux with the ati card.
Longer answer: There is a patch available that disables the ati and makes you linux box use the intel card instead. I cannot tell you about power consumption etc. since I need the ati card anyway and barely ever boot up windows. Try this link:
Very good news: the new Linux Kernel v2.6.34 brings many features and corrections, but the very most important thing to my eyes is: if you have 2 GPU (such as in some Timeline model), you will be able with this Kernel to switch from one to another!
HTML Code:http://kernelnewbies.org/Linux_2_6_34#head-d5dbe5b78c37bdb03e18b07556b06c1167dc3bb9Some laptops have two GPUs, a low-power and inefficient GPU and a high-power and powerful GPU. Users should be able to switch to one or another at runtime. In this version, Linux adds support for this feature. You need to restart X, though.