Hi,the main problem here is that you are reporting the problem against "general", since that will probably not lead to the bug being acted upon.
"Hewlett Packard Pavilion g6 2239-sr reffered as "laptop" laterafter clean Debian stable install (with Xfce DE, but i assume it's not important as it has problems with most if not all DEs)and instalation of "firmware-linux" metapackage and tlp
What does "tlp" mean?
The outcome was that it rendered system unusable when booting on battery power, as it freezed system on Log-in screen with slight graphical glitches appearing on screen like broken mouse cursor/pointer/arrow as a mess of ASCII characters (not letters but symbols rather) and the part of input field(s) becomes a little bigger than another making a slight aliasing effect
* does the problem not happen when connected to power? * when you switch back to CTRL-ALT-F1, do you get to the login prompt?I assume that the problem is with the graphics system. Can you please find out what graphics driver is being used? Have a look at /var/log/Xorg.0.log.
Do you see any problems reported there?Once you have determined what graphics driver is being used, then can you please find out to which package that driver belongs and reassign this bug report to the relevant package? Better yet, make a new bug report against the respective graphics driver package, since that should collect a lot more informations and add them to the report. Once you have created the new bug report, then please merge this bug report with the newly created bug report.
Did you google around for the type of your laptop and the graphics chip whether there are maybe other bug reports and or solutions?
*t