Hi. Installing Ubuntu 16.04, installing INTEL GRAPHICS UPDATE TOOL FOR LINUX* OS V2.0.4 didn't help. Except one.
> echo "options i915 enable_rc6=0" | sudo tee /etc/modprobe.d/i915.conf > sudo update-initramfs -k `uname -r` -u This command disable power-saving render C-state 6 for i915 driver. It helped me on Ubuntu 16.10 and 16.04. Also there are other powersaving possibly harmful for performance and stability parameters. They are: -enable_fbc -enable_dc Also you may look at `semaphores` parameter. To read all i915 parameters: > modinfo -p i915 This is a very useful link about intel graphic that I found: https://wiki.archlinux.org/index.php/intel_graphics @Jeffry R. Fisher: in logs(16.04) I had the same error as you, about missing DMC firmware. I didn't fix it and apparently will not. All this power-saving stuff makes no sense if you almost always work with power supply. Thank you and good luck. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1656155 Title: System (keyboard & touchpad) freezes Status in libdrm package in Ubuntu: Confirmed Bug description: I have a 1-month old Acer Aspire F5-573-58VX that came with Win-10 installed. It relies on its Intel i5-7200u for its graphics (HD 620). It runs Win-10 with no problems (other than Win-10 itself), so I do not suspect the hardware. I succeeded in dual-booting Ubuntu 16.04 with EFI and secure-boot both enabled, but was suffering random freezes at 3-30 minutes of use, even after setting the c-state limit in grub. It hangs both with and without Intel microcode. So I upgraded to 16.10 hoping that a newer kernel would have a fix in it. It's still freezing at random (many apps, and sometimes using only the desktop controls). It still has the c-state parameter in grub. It appears that if I leave the system untouched with the cursor in an empty area, then no freeze will occur (I can see display changing) as long as I don't touch anything. Bittorrent runs reliably overnight, and then the machine can freeze within seconds of my moving the cursor to a control in the morning. Thunderbird is also suspicious: I can work most of an hour OK as long as I never move the cursor over the scroll slider in the folder pane. However, bringing the cursor close enough to change the slider's appearance will usually freeze the machine. Update: I've now experienced a freeze while the cursor was stationary and I was merely typing into an email message window. When it freezes, the machine goes quiet (it's not spinning). There's no message to the GUI, only a sudden halt. When frozen, soft restart and reboot (ctrl-alt-back & ctrl-alt-del) both fail. Only a forced power-off has had any effect. (I'll try your alt+sysreq combos in my next freeze). Synaptic says I have an intel driver update utility installed, but I don't know if it has run. When I try to sudo it, I am told that the command is not found. I have been unable to locate it in the file system. If anyone knows where that goes (or where to hunt), that might be helpful. I do not (yet) know how to ssh into the sick machine to get kernel logs or crash dumps. I'm a user-space programmer, not a sysadmin, so I have a learning curve to open the firewall enough to allow an intrusion, and more learning curves for the cryptic debugging tools. var/log/kern.log has this: Jan 14 10:43:26 prop6 kernel: [ 1.002400] [drm:parse_csr_fw [i915_bpo]] *ERROR* Unknown stepping info, firmware loading failed Jan 14 10:43:26 prop6 kernel: [ 1.002405] i915_bpo 0000:00:02.0: Failed to load DMC firmware [https://01.org/linuxgraphics/intel-linux-graphics-firmwares], disabling runtime power management. Jan 14 10:43:26 prop6 kernel: [ 1.006089] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem Jan 14 10:43:26 prop6 kernel: [ 1.018209] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) Jan 14 10:43:26 prop6 kernel: [ 1.018522] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input5 Jan 14 10:43:26 prop6 kernel: [ 1.018601] [drm] Initialized i915_bpo 1.6.0 20160229 for 0000:00:02.0 on minor 0 Jan 14 10:43:26 prop6 kernel: [ 1.064117] r8169 0000:03:00.1 enp3s0f1: renamed from eth0 Jan 14 10:43:26 prop6 kernel: [ 1.142340] fbcon: inteldrmfb (fb0) is primary device Jan 14 10:43:26 prop6 kernel: [ 1.142437] Console: switching to colour frame buffer device 240x67 Jan 14 10:43:26 prop6 kernel: [ 1.142466] i915_bpo 0000:00:02.0: fb0: inteldrmfb frame buffer device My current work-around is to do as much work as possible in Win-10 :( To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1656155/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
