Niel Lambrechts wrote: >>>>> c's added, attached lspci output. >>>>> >>>>> On 05/19/2009 08:38 PM, Niel Lambrechts wrote: >>>>> >>>>> >>>>>> I have a strange problem in that during a resume from hibernate my >>>>>> text console (or X) remains blank - that is, until I simultaneously >>>>>> press a keyboard key and touch the synaptic pad. It is not >>>>>> sufficient >>>>>> to press just one or the other, it needs to be done >>>>>> simultaneously and >>>>>> it resumes fine after doing this. >>>>>> >>>>>> >>>> is this a regression or it exists on all the kernel you've tried? >>>> >>>> >>> Hi Zhang, >>> >>> It is not a recent regression, all of the kernels I tried back to >>> 2.6.28 >>> shows the same problem. The test results I posted last night was with >>> 2.6.30-rc6. I suspect it did not happen in 2.6.27, but I might be wrong >>> since I could not bisect that far back (I am using EXT4 and have too >>> many issues to bisect that far back). >>> >>> >>>> please remote login the box after resume, and get the output of >>>> "xrandr --verbose". >>>> >>>> >>> When I resume from suspend to RAM there is no problem. >>> >>> When I resume from hibernate, my laptop actually remains unusable until >>> I do the combination of things I mentioned. I cannot log in from remote >>> or even ping the laptop, except if I first press the mentioned key >>> combo. Before this, the display is either entirely blank or sometimes >>> there is a white cursor in the top left corner. >>> >>> The blank screen happens in runlevel 3 without X or "i915" loaded - I'm >>> not sure but I suppose you want the "xrandr" output for another reason. >>> It is interesting that it happens regardless of whether I am using >>> Intel >>> integrated graphics or Mobility Radeon HD 3650 (my laptop has both >>> and I >>> can enable one at a time). I boot the system with vga=791 and it is >>> using vesafb for console. >>> >>> I attached the output you asked for below after hibernating an Xorg >>> session, but this is from just after pressing the combo as I could not >>> log in over the network with the laptop in the blank state. >>> >>> Thanks, >>> Niel Hi, I've noticed that the screen only remains blank when I specify vga=xxx (I normally use vga=791) as a boot option, in other words when using vesafb. The blank screen on resume after hibernate consistently does not happen if I boot without it, and I tested with kernels from 2.6.28. Any idea who can help with this? Regards, Niel -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
