Philippe Mathieu-Daudé <f4bug@amsat.org> writes:

> +Sven
>
> On 12/1/22 22:07, Helge Deller wrote:
>> This patch fixes two problems which prevented Linux to access the
>> artist graphics framebuffer:
>> The check if the framebuffer or the color map should be accessed was
>> incomplete. By using the vram_read/write_bufidx() functions we now check
>> correctly if ARTIST_BUFFER_CMAP should be accessed.
>> The second fix is to correctly calculate the X- and Y-coordinates
>> and
>> check against the graphics resolution.
>> With this fix in place, the Linux stifb driver now works correctly,
>> shows the penguins at bootup and uses the stifb as graphics console.
>
> Cool, could you add a test similar to these?
>
> $ git grep Tux tests/avocado/
> tests/avocado/machine_arm_integratorcp.py:69:        Boot Linux and
> verify the Tux logo is displayed on the framebuffer.
> tests/avocado/machine_mips_malta.py:44:        Boot Linux kernel and
> check Tux logo is displayed on the framebuffer.
>
>> I haven't seen any negative side effects when running HP-UX.

Hmm, the patch below  breaks hp-ux 10.20 for me, please see the attached screenshot.