Cinnamon software rendering on Intel HD Graphics 520

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reptile
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Joined: Mon Dec 26, 2016 11:35 am

Cinnamon software rendering on Intel HD Graphics 520

Postby reptile » Mon Dec 26, 2016 12:47 pm

Hi!

Problem statement: Can't get Cinnamon and X to use graphics accellerator. Cinnamon complains about working in Software Rendeiring mode. Indeed, CPUs are utilized enormously (40-300%) when simply dragging windows around... Battery lasts just a fraction of the time that is expected.

OS: LMDE2 64bit (latest main and non-free packages. backports enabled for 4.8 kernel)
Laptop make and model: HP EliteBook 820 G3 Notebook with an Intel HD Graphics 520 chipset.

uname -a
Linux ... 4.8.0-0.bpo.2-amd64 #1 SMP Debian 4.8.11-1~bpo8+1 (2016-12-14) x86_64 GNU/Linux

GRUB addition
i915.preliminary_hw_support=1

lspci
00:02.0 VGA compatible controller: Intel Corporation Device 1916 (rev 07)

inxi -F
Graphics: Card: Intel Device 1916
Display Server: X.Org 1.16.4 drivers: intel (unloaded: fbdev,vesa) Resolution: 1368x768@60.00hz
GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.5, 256 bits) GLX Version: 3.0 Mesa 10.3.2

sudo lsmod | grep i915
i915 1302528 3
i2c_algo_bit 16384 1 i915
drm_kms_helper 155648 1 i915
drm 360448 4 i915,drm_kms_helper
video 40960 1 i915
button 16384 1 i915

Tried 'glxdemo' and got such an output:
libGL error: pci id for fd 4: 8086:1916, driver (null)
[intel_init_bufmgr:1068] Error initializing buffer manager.
libGL error: failed to create dri screen
libGL error: failed to load driver: i965

Graphics firmware
skl_dmc_ver1_26.bin was downloaded from here: https://01.org/linuxgraphics/intel-linu ... -firmwares

$ sudo dmesg | grep 915
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.8.0-0.bpo.2-amd64 root=UUID=273495e5-ccab-44b4-bc7b-94efd359f344 ro i915.preliminary_hw_support=1
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.8.0-0.bpo.2-amd64 root=UUID=273495e5-ccab-44b4-bc7b-94efd359f344 ro i915.preliminary_hw_support=1
[ 16.587106] i915 0000:00:02.0: firmware: direct-loading firmware i915/skl_dmc_ver1_26.bin
[ 16.588446] [drm] Finished loading i915/skl_dmc_ver1_26.bin (v1.26)
[ 16.600916] [drm] Initialized i915 1.6.0 20160711 for 0000:00:02.0 on minor 0
[ 17.744241] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 18.384400] (NULL device *): firmware: direct-loading firmware i915/skl_dmc_ver1_26.bin
[ 19.008012] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])

------------

Could someone more knowledgeable please hint, what am I doing wrong or what else could be tried to unlock the skylake chipset potential fully?

Thank you in advance!

/w

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killer de bug
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Location: Graz, Austria

Re: Cinnamon software rendering on Intel HD Graphics 520

Postby killer de bug » Mon Jan 02, 2017 3:25 pm

I was thinking that maybe you had to install this non-free binary drivers for your graphic card, but it seems that you already did it. :?
https://packages.debian.org/jessie-back ... sc-nonfree
Image
If it ain't broke, fix it until it is.


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