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From: Peilin Ye <yepeilin.cs@gmail.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	Linux Fbdev development list <linux-fbdev@vger.kernel.org>
Subject: Re: [PATCH v3 0/5] console: Miscellaneous clean-ups, do not use FNTCHARCNT() in fbcon.c
Date: Fri, 20 Nov 2020 03:37:39 -0500	[thread overview]
Message-ID: <20201120073245.GA24568@PWN> (raw)
In-Reply-To: <CAKMK7uF_AOrfTDVZwmxn_C-5sTBDu_v9KGH07wO5hTa98Z8Ucg@mail.gmail.com>

On Thu, Nov 19, 2020 at 04:10:57PM +0100, Daniel Vetter wrote:
> On Thu, Nov 19, 2020 at 9:33 AM Peilin Ye <yepeilin.cs@gmail.com> wrote:
> > setfont seems to work fine, I tried Georgian-Fixed16 (256 chars) and
> > Uni2-VGA16 (512 chars) under /usr/share/consolefonts/ in my Ubuntu box,
> > including setting all consoles to the same font:
> >
> > for i in {1..6}; do
> >         sudo setfont -C /dev/tty${i} /usr/share/consolefonts/Georgian-Fixed16.psf.gz
> > done
> >
> > Font rotation also seems to work fine:
> >
> > for i in {1..4}; do
> >         echo $i | sudo tee /sys/class/graphics/fbcon/rotate
> >         sleep 1
> > done
> 
> Thanks a lot for checking all this.

Not a problem, watching my console rotating was fun :)

> > One last thing I can think of is tile blitting, but I don't have the
> > hardware (e.g. a Matrox G400 card, see FB_TILEBLITTING in
> > drivers/video/fbdev/Kconfig) at hand, nor did I figure out how to
> > simulate it after searching for a while.  However based on the other
> > tests above I believe vc->vc_font.charcount is set properly.
> 
> tbh I'll just go ahead and delete it if it's broken :-)
> 
> Userspace we have to keep working (and there's actually people
> creating new products on top of drm display drivers using fbdev
> emulation and /dev/fb/0 interface!), but kernel internal stuff like
> fbcon acceleration we can trim pretty aggressively I think.

Ah, I see, I'll leave it be, then.

Thanks,
Peilin Ye


  reply	other threads:[~2020-11-20  8:38 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-12 12:02 [PATCH v3 0/5] console: Miscellaneous clean-ups, do not use FNTCHARCNT() in fbcon.c Peilin Ye
2020-11-12 12:04 ` [PATCH 1/5] console: Delete unused con_font_copy() callback implementations Peilin Ye
2020-11-12 12:11 ` [PATCH v3 2/5] console: Delete dummy con_font_set() and con_font_default() " Peilin Ye
2020-11-12 12:13 ` [PATCH v3 3/5] Fonts: Add charcount field to font_desc Peilin Ye
2020-11-12 12:14 ` [PATCH v3 4/5] parisc/sticore: Avoid hard-coding built-in font charcount Peilin Ye
2020-11-12 12:15 ` [PATCH v3 RFC 5/5] fbcon: Avoid using FNTCHARCNT() and hard-coded " Peilin Ye
2020-11-13 21:16 ` [PATCH v3 0/5] console: Miscellaneous clean-ups, do not use FNTCHARCNT() in fbcon.c Daniel Vetter
2020-11-13 22:47   ` Greg Kroah-Hartman
2020-11-14  8:10     ` Peilin Ye
2020-11-14 12:18       ` Greg Kroah-Hartman
2020-11-14 12:22         ` Greg Kroah-Hartman
2020-11-14 12:47           ` Peilin Ye
2020-11-16 10:09             ` Daniel Vetter
2020-11-17  6:21               ` Peilin Ye
2020-11-19  8:32           ` Peilin Ye
2020-11-19 15:10             ` Daniel Vetter
2020-11-20  8:37               ` Peilin Ye [this message]
2020-11-16 15:33     ` Daniel Vetter

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