Found something to get logs more easily. Forget about ehci debug. Libreboot can directly fetch logs from mem. This can be done using "cbmem -c". This tool is in coreboot/util.
> Forgot something: could you also provide me dmesg with kernel param: > drm.debug=0x1e log_buf_len=1M (if running linux4.1 or later, else use > 0xe) of the same system. > > Thanks a lot > > "Bella Riosa" <[email protected]> writes: > >> Will provide you some logs as soon i return home (this weekend) >> >>> Gesendet: Mittwoch, 22. Juni 2016 um 00:24 Uhr >>> Von: "Arthur Heymans" <[email protected]> >>> An: "Tudor SUCIU" <[email protected]> >>> Cc: libreboot <[email protected]> >>> Betreff: Re: [Libreboot] debug log on unsupported panels >>> >>> Most x200 screens are known to work. >>> I really need coreboot debug logs of not working devices on libreboot_beta. >>> >>> Tudor SUCIU <[email protected]> writes: >>> >>> > Hello Arthur, >>> > >>> > I will try to send you as soon as possible the logs. I don't have a >>> > working setup yet for ehci debug. >>> > I can send you the edid's of the two screens from two x200. One of >>> > them is not tested yet. >>> > Maybe you will give me the good news that the untested one is old >>> > enough and should work. >>> > >>> > On Tue, Jun 21, 2016 at 11:19 PM, Arthur Heymans <[email protected]> >>> > wrote: >>> > >>> > It seems that there are logs on the libreboot.org website. >>> > They are generated while running libreboot stable. >>> > I must specify that I need logs while running libreboot_beta. >>> > >>> > >>> > >>> > Arthur Heymans <[email protected]> writes: >>> > >>> > > Hi >>> > > >>> > > Some display panels don't work in libreboot (you don't see grub) >>> > but >>> > > work fine in GNU/linux. This mostly happens on t400/t500 with >>> > higher res >>> > > panels. This is caused by libreboot not handling display's >>> > correctly. >>> > > >>> > > I want to try to fix this but I will need libreboot debug logs >>> > to know >>> > > what the exact nature of the problem is. >>> > > I need someone with a not working/supported panel to follow the >>> > ehci debug >>> > > guide: >>> > > https://libreboot.org/docs/install/bbb_ehci.html >>> > > and email the log. (it is possible that log verbosity has to be >>> > increased) >>> > > I would also need a hexdump of the edid file found in: >>> > > /sys/class/drm/card0-LVDS-1/edid >>> > > >>> > > Kind regards >>> > > -- >>> > > Arthur Heymans >>> > >>> > >>> > >>> > >>> > >>> > >>> <#secure method=pgpmime mode=sign> >>> >>> -- >>> Arthur Heymans >>> >>> > <#secure method=pgpmime mode=sign> > > <#secure method=pgpmime mode=sign> -- Arthur Heymans
