Summary: | Screen rolling/rotating horizontally when using specific applications | ||||||||||
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Product: | DRI | Reporter: | Amish Naidu <amhndu> | ||||||||
Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||
Status: | CLOSED NOTOURBUG | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||
Severity: | major | ||||||||||
Priority: | medium | CC: | amhndu, intel-gfx-bugs | ||||||||
Version: | unspecified | ||||||||||
Hardware: | x86-64 (AMD64) | ||||||||||
OS: | Linux (All) | ||||||||||
Whiteboard: | |||||||||||
i915 platform: | BDW | i915 features: | |||||||||
Attachments: |
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Description
Amish Naidu
2016-07-04 04:17:18 UTC
Amish, can you attach some logs such as kernel and xorg? please also add drm.debug=14 in your boot command line. Created attachment 124901 [details]
kernel log with drm.debug=14
Created attachment 124902 [details]
Xorg log from /var/log/Xorg.0.log
Added the kernel log and xorg log. The kernel log (it's dmesg, right?) is shortly after the glitch triggered while using Kate, where again the screen became unstable and started rolling. After closing Kate, the screen stabilised. Can someone please help ? Bump... this right dmesg is kernel module, but getting from the boot time is better :) Checking on your xorg.log, it looks like "Intel" module cannot be found (or loaded). do you have intel_drv.so located in /usr/lib/xorg/modules/drivers/? BTW did you encounter this issue after an update of Ubuntu or a fresh Install of 16.04? you may have a look here http://askubuntu.com/questions/80914/how-reinstall-the-default-graphics-drivers (don't forget to restart your system since unity --restart is deprecated) (In reply to yann from comment #7) > this right dmesg is kernel module, but getting from the boot time is better > :) dmesg is kernel log (not module ;) (In reply to yann from comment #7) > dmesg is kernel log, but getting from the boot time is better How do I obtain it ? > do you have intel_drv.so located in /usr/lib/xorg/modules/drivers/? No, I don't > BTW did you encounter this issue after an update of Ubuntu or a fresh Install of 16.04? This is a fresh install on a new laptop. Surprisingly, the package "xserver-xorg-video-intel" was not installed... However, other than the occasional glitch, I have been able to watch HD videos and play games fine. I've reinstalled the drivers. I will report after a restart. Thank you for helping me out. :) After about a day of using my laptop after installing `xserver-xorg-video-intel` and reinstalling other graphics component, I haven't been able to trigger the glitch at all. A bit digging revealed this: http://ubuntuforums.org/showthread.php?t=2324014 Lubuntu 16.04, the LXDE flavor decided to not include the above package for some reason, though after installing it manually, the problem at hand could be considered resolved. Although, while playing AssaultCube, I did notice some flickering, but that is something I can live with. P.S. I hope I have selected the appropriate status Thanks Amish. If you want please feel free to open another bug for the flashing issue you are seeing. concerning the kernel log, you may extend current log buffer size with log_buf_len=4M on your command line (this is a ring buffer). |
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