I recently installed Linux Mint 13 MATE on my old Windows XP laptop (Fujitsu Siemens Amilo D1840W). Since then multiple problems has arisen. Under XP the laptop ran just fine. The only problem mutual to both platforms is #3.
1. Laptop keyboard and touchpad malfunction at bootup or shortly after bootup. Simply restarting the machine doesn't resolve the problem, only a hard boot will. Keyboard tends to freeze after I press a random key. As it freezes the system keeps hitting that one key over and over again (for example if I had a text editor open and the keyboard froze as I was pressing 'd', the document would fill up with this letter 'ddddddddd...'). After this happens, the keyboard doesn't respond to anything. I googled Magic SysRq keys and even it doesn't seem to work.
To solve problem #1 I decided to purchase an external keyboard. However, I noticed that the external keyboard sometimes freezes as well. This happens if I plug the keyboard into the two USB slots on the left of the laptop. The third one in the back is totally fine and works perfectly.
What I find strange is that it appears only the external OR internal laptop will freeze. It never affects both of them. Therefore I always have an external keybaord plugged in and use that whichever doesn't freeze.
2. No sound at bootup. It has worked very rarely but it indeed has worked before. To be able to have sound I have to plug in my USB headphones.
3. System doesn't recognise SD cards.
I would really appreciate if someone helped me. I am happy to deliver additional information. Cheers!