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[Bug 877438] Re: [8xxx] Unity/compiz has sluggish performance on dual-head with nvidia driver

To: compiz@xxxxxxxxxxxxxxxxxxx
From: Francis De Brabandere <877438@xxxxxxxxxxxxxxxxxx>
Date: Wed, 30 May 2012 07:12:21 -0000
Reply-to: Bug 877438 <877438@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Same problem on DELL laptop with NVIDIA Corporation G98M [Quadro NVS
160M] (rev a1) connected to docking station with external (1920*1200)
monitor.

It starts to get hotter at my workplace with the summer nearby and GPU temperature seems to go up to 80+°C Once this happens the whole X session slows down and all applications start to take more CPU. I have the impression the graphics card somehow throttles down to almost unusable speed.
A workaround for me is to install a big fan that continuously blows on my laptop causing temperatures to go down again. Disabling the second screen also brings back temperatures to a normal level (and powermizer to level 0 where it stays at 2-3 with the extra monitor)

I'll try purging and reinstalling the driver...

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https://bugs.launchpad.net/bugs/877438

Title:
  [8xxx] Unity/compiz has sluggish performance on dual-head with nvidia
  driver

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