I'll guess that you have integrated video cards on both machines which are underpowerd... If that's the case, then you need a better video card with a good amount of RAM.. In addition, running the XP operating system with a bare minimum just doesn't cut it.. A bare minimum for a decent running XP is 512 MB and in your case, you've got less than that.. 1 GB would be better and you might try doing so.. After upgrading the RAM, access the BIOS settings and see if you can increase the amount of RAM allocated to the video card.. Some BIOS settings give you such an option.. Some don't.
So up the RAM to 1 GB or more and if you could, install a separate video card with 256 MB or more and it should work better. Unfortunately, laptops usually don't have an upgrade for their video cards and you'll have to live with just added system RAM..
Remember also that the Sempron and Celeron processors you've listed aren't barn-burners either..
Basically, when the video needs more "uumph", the two computers you've listed just don't have it.
Hope this helps.
I hooked my laptop up to my HDTV successfully recently with a SVGA cable. Picture is great, everything works perfectly except when I try to play videos (YouTube, etc) or video game emulators in full screen on the TV. A small window plays/sounds fine but when I make it full screen on the TV it slows down drastically, the audio & video begins to skip, and the video becomes unwatchable/game unplayable. Reducing it back to a smaller size fixes the problem instantly.
When playing the video or game just on the laptop itself, it works fine in full screen mode. But when connected to the TV and blown up it won?t work properly. I thought maybe my machine was too slow but I?ve tried two different laptops with the same problem. Here are the machines I?m running:
Gateway M320 Intel Celeron Processor 1.40GHz, 224MB Ram
HP Mobile AMD Sempron Processor 3500+ 1.79GHz, 448MB RAM (Windows XP on both)
Only being able to play small videos on my TV from the laptop is better than nothing, but I?d love to be able to play them at full screen without compromising the quality of the video or game. Can anybody help?