Re: [PATCH v3 0/7] drm: Add driver for Solomon SSD130X OLED displays

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Hello Geert,

On 2/9/22 13:19, Geert Uytterhoeven wrote:
> Hi Javier,
> 
> On Wed, Feb 9, 2022 at 10:03 AM Javier Martinez Canillas
> <javierm@xxxxxxxxxx> wrote:
>> This patch series adds a DRM driver for the Solomon OLED SSD1305, SSD1306,
>> SSD1307 and SSD1309 displays. It is a port of the ssd1307fb fbdev driver.
> 
> [...]
> 
>> - Fix a bug when doing partial updates (Geert Uytterhoeven)
> 
> Thanks, the text console is now more or less working as expected.

Thanks for giving it a try to this version too! Glad to know that
is working better now.

> There is still an issue with the cursor, though.
> After doing "echo hello > /dev/tty0", the text appears, but the cursor
> is gone. "clear > /dev/tty0" brings it back.
>

Hmm, I was able to reproduce this too. Thanks for pointing it out,
I'll investigate what the problem is.
 
> The execution time of "time ls" has improved. It now takes 1.21s
> (0.86s with ssd1306fb).
>

Yes, I believe that was due the bug I mentioned that partial updates
weren't done but a full screen update instead.
 
> The logo is not shown, even when I create a 16-color or 224-color
> version of the small monochrome logo I'm using.
>

I'll also dig into this.

Best regards,
-- 
Javier Martinez Canillas
Linux Engineering
Red Hat




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