Lenovo ThinkPad Edge E460 --- Issues with dedicated GPU & OneLink Dock

Tomatopaste · 2016-02-11 22:33:18

Dear community,

I recently bought a Lenovo ThinkPad Edge E460 20EU-S000, but after installing archlinux I encountered some issues regarding video output and want to ask for your help and experience with similar problems. The notebook has the following specifications (according to the vendor):

Intel Core i5-6200U 'Skylake'
Intel HD Graphics 520
AMD Radeon R7 M360

Dedicated GPU

I cannot find a way to get the dedicated GPU to run. After installing both open source drivers 'xf86-video-intel' and 'xf86-video-amdgpu', 'xrandr' only shows the Intel device. With lspci, the AMD device is listed as an 'Display controller', not as a 'VGA controller' like the Intel one. Since the notebook is relatively new on the market, could it be an issue that the drivers are not compatible up to now?

I followed the linked guide for AMD hybrid solutions and enabled 'xcompmgr' for my LXDE environment, but I cannot get any further in this tutorial, since I cannot find vgaswitcheroo in the debug folder. PRIME will not work either, since the AMD device is not listed as an 'VGA controller'. (see: https://xpressrazor.wordpress.com/2013/ … amd-setup/ )

Lenovo OneLink Pro Dock

Together with the notebook I bought a OneLink Pro Dock, since I did not find any issues with archlinux related to other Lenovo devices. (see for example: https://wiki.archlinux.org/index.php/Le … 29#Docking ).

The problem is that the system freezes as soon as one display is activated that ist connected to the docking station.

I am able to reproduce this in different ways:

booting with video device connected to Dock
running 'xrandr --auto' after connecting video device over Dock
using 'lxrandr' to specify a video device connected with Dock

'lxrandr' lists the following devices, if a proper end device is connected:
NB Screen: eDP1 - works
HDMI output: HDMI2 - works
DVI (Dock): DP1-1 - freeze
Display Port (Dock): DP1-2 - freeze

Following 1.) shows some error at booting before starting the desktop environment. I guess it is related to the Intel video module since i915 is listed multiple times. After googling the error message, it seems that there are issues with the i915 module and the DisplayPort output, which seems to be the case for both DVI and DisplayPort output for the Dock as indicated by the DP prefix. Are 'Skylake' GPUs not supported completely up to now? Are there hotfixes I could try?

[drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too many voltage retries, give up
[drm:intel_wait_ddi_buf_idle [i915]] *ERROR* Timeout waiting for DDI BUF B idle bit
[drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too many voltage retries, give up
[drm:intel_wait_ddi_buf_idle [i915]] *ERROR* Timeout waiting for DDI BUF B idle bit
[drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too many voltage retries, give up
[drm:intel_wait_ddi_buf_idle [i915]] *ERROR* Timeout waiting for DDI BUF B idle bit
[drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too many voltage retries, give up
[drm:intel_wait_ddi_buf_idle [i915]] *ERROR* Timeout waiting for DDI BUF B idle bit
[drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too many voltage retries, give up
[drm:intel_dp_link_training_channel_equalization [i915]] *ERROR* failed to train DP, aborting
[drm:intel_dp_link_training_channel_equalization [i915]] *ERROR* Timed out waiting for DP idle patterns
Kernel panic - not syncing: Timeout: Not all CPUs entered broadcast exception handler
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 30 seconds..

Possible Solutions?

Before changing my whole system, I'd like to point out some ideas. If you think they're promising, I'll give those a try:

Should I install the 'catalyst-total' package from AUR instead of using the open source driver? Would that resolve all problems?

I'm using LXDE as desktop environment. Could probably others run without problems?

I would welcome any response!

Best regards,
Tomatopaste

Logs

Here are some additional logs:

lspci

00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 07)
00:14.0 USB controller: Intel Corporation Device 9d2f (rev 21)
00:14.2 Signal processing controller: Intel Corporation Device 9d31 (rev 21)
00:16.0 Communication controller: Intel Corporation Device 9d3a (rev 21)
00:17.0 SATA controller: Intel Corporation Device 9d03 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d12 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Device 9d18 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Device 9d48 (rev 21)
00:1f.2 Memory controller: Intel Corporation Device 9d21 (rev 21)
00:1f.3 Audio device: Intel Corporation Device 9d70 (rev 21)
00:1f.4 SMBus: Intel Corporation Device 9d23 (rev 21)
01:00.0 Network controller: Intel Corporation Device 3166 (rev 99)
02:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265] (rev 81)

xrandr with connected video device over the DisplayPort of the Dock, but disabled

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
   1920x1080     60.02*+
   1400x1050     59.98  
   1600x900      60.00  
   1280x1024     60.02  
   1280x960      60.00  
   1368x768      60.00  
   1280x720      60.00  
   1024x768      60.00  
   1024x576      60.00  
   960x540       60.00  
   800x600       60.32    56.25  
   864x486       60.00  
   640x480       59.94  
   720x405       60.00  
   640x360       60.00  
DP1 disconnected (normal left inverted right x axis y axis)
DP1-1 disconnected (normal left inverted right x axis y axis)
DP1-2 connected (normal left inverted right x axis y axis)
   1920x1080     60.00 +  50.00    59.94    30.00    25.00    24.00    29.97    23.98  
   1680x1050     59.88  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1366x768      59.79  
   1280x800      59.91  
   1152x864      75.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.08    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
DP1-3 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Last edited by Tomatopaste (2016-02-11 22:35:33)

maaa · 2016-03-04 11:45:00

Hello tp,
I am having the exact same problem on my Thinkpad e560 and ubuntu 15.10, if you were able to solve your problem an update of this post would be highly appreciated !

cheers, maaa

epicepee · 2017-08-15 23:42:19

I think I have the same GPU issue:

https://bbs.archlinux.org/viewtopic.php?id=225810

Any news?

V1del · 2017-08-16 06:36:57

No need to necro an old thread if you have one that already sees strong activity.

Continue in the linked thread if necessary.

Closing.

Arch Linux

#1 2016-02-11 22:33:18