I discovered the Software rendering mode of cinnamon does not have the same problem. With software rendering, cinnamon is using 260% of the CPU and system is not very usable.
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) modinfo i915: filename: /lib/modules/3.16.0-4-amd64/kernel/drivers/gpu/drm/i915/i915.ko license: GPL and additional rights description: Intel Graphics author: Tungsten Graphics, Inc. depends: drm_kms_helper,drm,i2c-core,video,button,i2c-algo-bit intree: Y vermagic: 3.16.0-4-amd64 SMP mod_unload modversions parm: modeset:Use kernel modesetting [KMS] (0=DRM_I915_KMS from .config, 1=on, -1=force vga console preference [default]) (int) parm: panel_ignore_lid:Override lid status (0=autodetect, 1=autodetect disabled [default], -1=force lid closed, -2=force lid open) (int) parm: powersave:Enable powersavings, fbc, downclocking, etc. (default: true) (int) parm: semaphores:Use semaphores for inter-ring sync (default: -1 (use per-chip defaults)) (int) parm: enable_rc6:Enable power-saving render C-state 6. Different stages can be selected via bitmask values (0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. default: -1 (use per-chip default) (int) parm: enable_fbc:Enable frame buffer compression for power savings (default: -1 (use per-chip default)) (int) parm: lvds_downclock:Use panel (LVDS/eDP) downclocking for power savings (default: false) (int) parm: lvds_channel_mode:Specify LVDS channel mode (0=probe BIOS [default], 1=single-channel, 2=dual-channel) (int) parm: lvds_use_ssc:Use Spread Spectrum Clock with panels [LVDS/eDP] (default: auto from VBT) (int) parm: vbt_sdvo_panel_type:Override/Ignore selection of SDVO panel mode in the VBT (-2=ignore, -1=auto [default], index in VBT BIOS table) (int) parm: reset:Attempt GPU resets (default: true) (bool) parm: enable_hangcheck:Periodically check GPU activity for detecting hangs. WARNING: Disabling this can cause system wide hangs. (default: true) (bool) parm: enable_ppgtt:Override PPGTT usage. (-1=auto [default], 0=disabled, 1=aliasing, 2=full) (int) parm: enable_psr:Enable PSR (default: false) (int) parm: preliminary_hw_support:Enable preliminary hardware support. (int) parm: disable_power_well:Disable the power well when possible (default: true) (int) parm: enable_ips:Enable IPS (default: true) (int) parm: fastboot:Try to skip unnecessary mode sets at boot time (default: false) (bool) parm: prefault_disable:Disable page prefaulting for pread/pwrite/reloc (default:false). For developers only. (bool) parm: invert_brightness:Invert backlight brightness (-1 force normal, 0 machine defaults, 1 force inversion), please report PCI device ID, subsystem vendor and subsystem device ID to dri-de...@lists.freedesktop.org, if your machine needs it. It will then be included in an upcoming module version. (int) parm: disable_display:Disable display (default: false) (bool) parm: disable_vtd_wa:Disable all VT-d workarounds (default: false) (bool) parm: enable_cmd_parser:Enable command parsing (1=enabled [default], 0=disabled) (int) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
