On Thu, 5 Apr 2018 14:38:24 -0400, Jason Andryuk wrote: > The HP EliteBook G3 850 has a weird bug where a subsequent cold boot > hangs while plugged in if Linux enables the Host Notify features of > i2c-i801. The cold boot hang depends on how the system boots. It does > not hang on UEFI Grub text boot or legacy Grub text boot. But it does > hang on legacy Grub graphical boot and Intel Boot Agent PXE text boot. > Booting unplugged is not affected. > > Disabling the Host Notify feature with disable_feature=0x20 works around > the bug, so automatically do so based on DMI information. > > More information can be found here: > https://www.spinics.net/lists/linux-i2c/msg33938.html > > Signed-off-by: Jason Andryuk <jandryuk@xxxxxxxxx> > Reviewed-by: Jean Delvare <jdelvare@xxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx > --- > v3: Switch to DMI_EXACT_MATCH and add empty element to array > > drivers/i2c/busses/i2c-i801.c | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > (...) Wolfram and stable, please hold on with this patch, Jason and I may have found a proper fix so blacklisting would no longer be needed. -- Jean Delvare SUSE L3 Support