This is not a bug in X. If at all it's a kernel bug. I'll write a mail to the kernel ML and see what they say. Maybe even the kernel can't fix it and it's just my BIOS that's broken...
In the meantime a workaround is documented here: https://bugs.freedesktop.org/show_bug.cgi?id=15360
I'll also attach the script I use as a workaround.
This is not a bug in X. If at all it's a kernel bug. I'll write a mail to the kernel ML and see what they say. Maybe even the kernel can't fix it and it's just my BIOS that's broken...
In the meantime a workaround is documented here: https:/ /bugs.freedeskt op.org/ show_bug. cgi?id= 15360
I'll also attach the script I use as a workaround.