Too high a screen resolution can tax the system leading to overheating, but screen brightness will only affect your eyes. I don't use anything but desktops, so I'm afraid I can't comment specifically on your machine. It could be that your screen brightness is controlled by a mechanical dial that software won't override. The next thing to consider is what renders your graphics and what driver deepin is using to control it. Google your machine specs and Ubuntu for recommendations. If your laptop is getting hot, I would lower the resolution or use Windows for research. As to the drive names, grub may be recognizing a Windows recovery partition installed by Acer.

In other distros I can change the brightness but in deepin i cant seem to change it and because I cant change the brightness its stuck at full my laptop battery gets to 0 in less than 1hr for this mayb my gpu isnt detected

If your are using Deepin 2014, try this post
http://askubuntu.com/questions/4 ... grade-on-thinkpad-l

I have an Acer laptop, and to get the brightness keys working with any distro, I need to add these two options to grub: acpi_osi=Linux acpi_backlight=vendor
e.g. GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"