Bruno, can you please have a look at the following regression attributed to: 4eebd5a apple-gmux: lock iGP IO to protect from vgaarb changes 2015-03-18 (7 months ago), Bruno Prémont <bonbons@xxxxxxxxxxxxxxxxx> On Thu, Oct 15, 2015 at 04:47:13AM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=105051 > > Felipe Ortiz <fortizc@xxxxxxxxx> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |fortizc@xxxxxxxxx > > --- Comment #14 from Felipe Ortiz <fortizc@xxxxxxxxx> --- > I can confirm the problem with 4eebd5a4e72697aac25a8a57d3f888a9d5f80370. I have > a MPB 11,5 with AMD/Intel graphics. I recompile the module (a previous version > of 4eebd5a4e72697aac25a8a57d3f888a9d5f80370) and brightness adjusts is working > again. > > I see two problems: > > 1) If someone uses gpu-switch (https://github.com/0xbb/gpu-switch) with this > bug screen seem not work, after severals reboots (with different kernels) I can > access a terminal and execute gpu-switch -d and then screen seems work again. > > 2) If you use a Intel card (swiched with gpu-switch) the OSD (activated with > functions keys) is so slow and chromium have the same problem (temporary fix is > deactivate chromium hw acceleration) is this a intel driver bug? > > -- > You are receiving this mail because: > You are on the CC list for the bug. > Thanks, -- Darren Hart Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
