mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-09-18 18:15:59 +00:00
4836f5749e
On a Dell Latitude CPi-A I noticed a strangeness wrt. the handling of an external monitor by the neomagic framebuffer driver, namely when the laptop is docked in a C/Dock II with the lid shut. A cold boot would result in the BIOS configuring the video chip to use the "external monitor only" mode, yet neofb would default to "internal LCD only". An attempt for a quick fix by using the Fn-F8 keystroke to toggle the display combination modes resulted in a reproductible hard lock, powering down being the only solution. The attached patch makes neofb probe the register for the current display mode, using that value as a default if nothing was specified as kernel/module parameter. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2314 lines
57 KiB
2314 lines
57 KiB