Further information:
With the above fix, the very early boot console messages are not
rotated. adding "fbcon=rotate:1" to the kernel command line corrects
this. But these early boot console messages are still garbled - it
looks like the display driver in use at the time cannot write to the
screen fast enough - lines are half-formed before scrolling.
Note that this corrects itself and later boot messages are legible
before the plymouth splash (if in use). I can't see anything that
looks like useful information re the fb in journalctl immediately
preceding the first legible output seen during boot.
I've played around with console, earlycon and fbcon parms to no useful
effect. Any ideas?
Darrell
On Fri, 3 Feb 2023 at 18:32, Darrell Kavanagh
<darrell.kavanagh@xxxxxxxxx> wrote:
>
> Hi,
>
> This is another Lenovo with detachable keyboard and 1200x1920 screen
> mounted sideways.
>
> The following has been tested with 6.2.0-rc6.
>
> Thanks,
> Darrell
>
> index 3659f04..590bb7b 100644
> --- a/kernel/drm_panel_orientation
> _quirks.c
> +++ b/kernel/linux-6.2-rc6/drivers/gpu/drm/drm_panel_orientation_quirks.c
> @@ -304,6 +304,12 @@ static const struct dmi_system_id orientation_data[] = {
> DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad
> D330-10IGM"),
> },
> .driver_data = (void *)&lcd1200x1920_rightside_up,
> + }, { /* Lenovo IdeaPad Duet 3 10IGL5 */
> + .matches = {
> + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> + DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "IdeaPad Duet 3 10IGL5"),
> + },
> + .driver_data = (void *)&lcd1200x1920_rightside_up,
> }, { /* Lenovo Ideapad D330-10IGL (HD) */
> .matches = {
> DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
