2011/11/26 Michał Piotr Gawron <michal@xxxxxxxxxxx>: > On 26.11.2011 03:03, Damjan wrote: >> On 25.11.2011 20:02, Michał Piotr Gawron wrote: >>> I have identical symptoms after my recent upgrade, so I thought that >>> I add my observations. >>> >>> I bought Lenovo T520 (90% intel based devices) and was migrating >>> everything from old R61. >> [ snip a list of problems ] >> >> Did you try upgrading the BIOS first? >> With new computers I always find necessary to upgrade the bios, since >> bugs are found after they are on the market, and laptops sitting in >> warehouses wont be upgraded. >> >> After that try running memtest86 for a while… it might as well be faulty >> RAM. > > I was running memtest for 10h, no errors found. > > But I found out that when mouse starts jumping reloading the iwlagn > module helps. Of course networkmanager restarts my connections, but it > keeps Firefox running and I no longer see Firefox crashes. > > I'm now running without iwlagn module and on external Linksys USB wifi > card. System seems stable. > > As for BIOS, in fact it is pretty old (1.31 vs newest 1.34). I'll > upgrade it later and post results. > > Thanks for the hints. > > std::best_regards(); > -- > Michał Gawron > I have had the mouse jumping problem myself on various laptops and in every case it was caused by not having installed xf86-input-synaptics. Just thought it was worth a mention. Clive -- Infinity: A concept for those who cannot comprehend the big picture. () Arch Linux - For movers and shakers. ()