However although most of the stuff works,I had to face many graphics related issues-some programs quitting showing llvm error,plymouth failing to load,poor rendering of images,etc...
However I tried everything as this post said as my card seems to be a fifth generation broadwell card- http://forums.debian.net/viewtopic.php?f=16&t=131611
Although some issues like applications refusing to startup were solved,I still had to face lots of the same issues-poor rendering,plymouth not loading,etc..
Even in applications that previously refused to start,the graphics performance is still poor/very slow(For eg-Mupen64plus shows a black screen with just the health bar shown in many games,Many steam games were very slow/skipped lots of frames,etc..).The renderer is still Gallium llvmpipe according to my inxi -G output.
Here's my inxi -G output
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Graphics: Card: Intel Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller
Display Server: X.Org 1.16.4 drivers: fbdev,intel (unloaded: vesa)
Resolution: 1366x768@76.00hz
GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits)
GLX Version: 3.0 Mesa 13.0.4
Another issue that I faced is that I can't boot using the latest kernel(4.9).Whenever I boot up after showing 'Loading Please wait..." the screen immediately goes blank.Not black screen or anything,just a blank screen and I have to force switch off(By long pressing power button) to boot again.Then I had to boot from the stable kernel(3.16) to get a working system.These are the outputs of update-initramfs -u and update-grub2 for Kernel 4.9 and Kernel 3.16 respectively.
Kernel 4.9
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Generating /boot/initrd.img-4.9.0-0.bpo.1-amd64
W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_ver8_7.bin for module i915
Generating grub configuration file ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-4.9.0-0.bpo.1-amd64
Found initrd image: /boot/initrd.img-4.9.0-0.bpo.1-amd64
Found linux image: /boot/vmlinuz-3.16.0-4-amd64
Found initrd image: /boot/initrd.img-3.16.0-4-amd64
Adding boot menu entry for EFI firmware configuration
done
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Generating grub configuration file ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-3.16.0-4-amd64
Found initrd image: /boot/initrd.img-3.16.0-4-amd64
Adding boot menu entry for EFI firmware configuration
done