On Sat, May 2, 2009 at 12:30 PM, Andrew Gaydenko <[email protected]> wrote: > On Saturday 02 May 2009 16:23:48 Stroller wrote: >> On 2 May 2009, at 09:39, Andrew Gaydenko wrote: >> >> ... >> >> Looks like an overheating GPU to me. >> >> >> >> Do you have accelerated graphics on for those panels? >> >> I'll bet if you turn it off the problem will disappear. >> > >> > Say, bottom panel hasn't something special: std menu, lancelot, >> > tasks, tray >> > and clock. Can overheating be such selectable? - I mean only KDE4 >> > panels- >> > related problem takes place (say, my sone plays few games without any >> > problems, as well as, say, OOo/Qt/KDE and so on emerging ). And I >> > didn't >> > overclocked something. But have added few additional silent coolers >> > inside a >> > case :-) >> >> Can overheating be so selective? I can't say for sure, but I can't see >> it having so much work to do when displaying the wallpaper as if those >> panels fade or slide. I presume they can be auto-hidden one way or the >> other when not in use, and that effects would be enabled by default if >> you have GPU acceleration available. >> >> Speckles are somewhat characteristic, and most any videogamer will >> recognise them - once you've had a graphics card or a Playstation >> (type) console die on you, they are very recognisable. >> >> The emerging won't have any effect on speckles, only GPU-related >> activity. It depends on the particular games that your son plays >> whether I'd say they're relevant. I'm no expert on Linux graphics (I >> don't use it on the desktop myself), but I'd guess TuxRacer probably >> does use the GPU whereas Frozen Bubble does not. >> >> If you're able to turn the GPU's acceleration features off in X11 (or >> the kernel?) and just treat it as a framebuffer device, then please >> prove me wrong! >> >> Stroller. > > > OK, as Stroller has suggested, I have cleaned heatsink, replaced heat- > conducting paste and so on. Now it would be nice to have something for quick > GPU load testing (instead of long-long KDE session). Can anybody suggest an > appropriate sw or, may be, some game with "hard and heavy" (wrt GPU load) > demo?
use the overclocking tweaks in nvidia-settings to blow it up :P
