[Bug 84740] black screen after Grub loads a kernel entry (Intel Atom D2xxx/N2xxx Integrated Graphics Controller)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84740

Paulo Zanoni <przanoni at gmail.com> changed:

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                 CC|                            |przanoni at gmail.com

--- Comment #1 from Paulo Zanoni <przanoni at gmail.com> ---
Hi

Another test would be: instead of suspending/resuming, you could try to VT
switch (press CTRL+ALT+F1-F8) and see if it works.

Can you please boot with drm.debug=0xe, reproduce the issue, then
suspend/resume and attach the dmesg here? Please attach the raw file, not a
compressed version.

Another thing which you could try:
- Install intel-gpu-tools from
http://cgit.freedesktop.org/xorg/app/intel-gpu-tools
- Compile it
- Boot the machine, reproduce the problem
- Run "sudo ./tools/intel_reg_dumper > before-suspend.txt"
- Suspend/resume
- Run "sudo ./tools/intel_reg_dumper > after-suspend.txt"
- Then attach both files to this bug report.

You may need to use SSH for this, or maybe do some blind-typing :)

Thanks,
Paulo

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