System Environment ======= Platform Info: Label: WHLU01 Processor: Genuine Intel(R) CPU 0000 @ 1.60GHz Bios: CNLSFWR1.R00.X137.B00.1803280218 OS: Ubuntu 18.10 Kernel: 4.18.0-9-generic Regression? ======= seems be Bug detailed description ======= Platform Info: Label: WHLU01 Processor: Genuine Intel(R) CPU 0000 @ 1.60GHz Bios: CNLSFWR1.R00.X137.B00.1803280218 OS: Ubuntu 18.10 Kernel: 4.17.0-9-generic Details: Execute the command "xrandr -s 640x360", the desktop would hang except the mouse can move. The keyboard cannot input anything. At this moment, the ssh is connected. The dmesg log is null in collected dmesg log when bug occured, so just attach the journalctl log. Reproduce Steps ============== xrandr -s "640x360" Expected Result ============= work normally Actual Result =========== gpu hang Analysis & Root Cause =================== Other tens resolution are fine, only 640x360 has the issue. This should be some alignment issue? I will attach dmesg.log and journalctl.log for your analysis.
Created attachment 141945 [details] gpu hang debug information
Created attachment 141946 [details] kernel startup normally debug information
Update: Checked this issue on WHLU01 with upstream kernel v4.19-rc5, this issue reproduced. When execute xrandr -s 640x360, the desktop would hang. But ssh still works well. root@WHLU01:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-4.19.0-rc5+ root=UUID=46ea8678-4edc-4015-8fea-f3f4449054d4 ro drm.debug=0xe quiet splash vt.handoff=1 The dmesg logs include startup of OS (WHL-U_4.19_rc5_dmesg.log ) and issue happened ( dmesg_640x360_4.19.0-rc5_WHLU01.log ) are attached.
(In reply to qwang13 from comment #0) > Details: > Execute the command "xrandr -s 640x360", the desktop would hang except the > mouse can move. The keyboard cannot input anything. At this moment, the ssh > is connected. > > The dmesg log is null in collected dmesg log when bug occured, so just > attach the journalctl log. There's nothing in the logs that indicate a hang. Please elaborate.
What are display connected on this, eDP only or something else too?
Reporter, any comments here?
(In reply to Jani Saarinen from comment #5) > What are display connected on this, eDP only or something else too? eDP(native screen) and DP/HDMI port connected(external monitor)
Can you test with eDP only? Tested on CI WHL-U http://gfx-ci.fi.intel.com/hardware.html No issues seen on Ubuntu 18.04. Command worked and no hangs.
This works on my setup. Platform: Intel Corporation Ice Lake Client Platform/IceLake Y LPDDR4x T4 RVP TLC, BIOS ICLSFWR1.R00.2454.A00.1811082216 11/08/2018 Kernel: drm-tip 4.20.0-rc6 OS: Ubuntu 18.04 LTS Display: eDP (native)
My setup: Platform: Intel Corporation Ice Lake Client Platform/IceLake Y LPDDR4x T4 RVP TLC, BIOS ICLSFWR1.R00.2454.A00.1811082216 11/08/2018 Kernel: drm-tip 4.20.0-rc6 OS: Ubuntu 18.04 LTS Display: eDP (native) Command xrandr -s 640x360 works ok. Command xrandr -s 512x288 hangs up after couple of seconds (mouse cursor still works). The X shows the following log when changing resolution [ 140.606] (II) modeset(0): EDID vendor "SHP", prod id 5225 [ 140.606] (II) modeset(0): Printing DDC gathered Modelines: [ 140.606] (II) modeset(0): Modeline "3200x1800"x0.0 373.25 3200 3248 3280 3360 1800 1803 1808 1852 -hsync -vsync (111.1 kHz eP) [ 140.894] (II) modeset(0): Allocate new frame buffer 512x288 stride [ 141.826] (II) modeset(0): EDID vendor "SHP", prod id 5225 [ 141.826] (II) modeset(0): Printing DDC gathered Modelines: [ 141.826] (II) modeset(0): Modeline "3200x1800"x0.0 373.25 3200 3248 3280 3360 1800 1803 1808 1852 -hsync -vsync (111.1 kHz eP)
I cannot reproduce this bug with the following setup My setup: Platform: Intel Corporation Ice Lake Client Platform/IceLake Y LPDDR4x T4 RVP TLC, BIOS ICLSFWR1.R00.2454.A00.1811082216 11/08/2018 Kernel: drm-tip 5.0.0-rc8 OS: Ubuntu 18.04 LTS Display: eDP (native) 'xrandr -s 640x360' works ok. 'xrandr -s 512x288' works ok
(In reply to Mika Kahola from comment #11) > I cannot reproduce this bug with the following setup > > My setup: > Platform: Intel Corporation Ice Lake Client Platform/IceLake Y LPDDR4x T4 > RVP TLC, BIOS ICLSFWR1.R00.2454.A00.1811082216 11/08/2018 > Kernel: drm-tip 5.0.0-rc8 > OS: Ubuntu 18.04 LTS > Display: eDP (native) > > 'xrandr -s 640x360' > works ok. > > 'xrandr -s 512x288' > works ok Seems like the kernel has fixed the issue, and we have not heard from the bug reporter since December. Closing the issue, feel free to re-open!
this bug is fixed on 19.04 (5.0.0)
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