U-Boot Logo showing incorrect colors with eLCDIF
Hi,
We are converting imx7d-sdb and imx6sx-sdb boards to DM_VIDEO, but we are seeing the Freescale logo with incorrect colors (white area is being shown blue, for example).
imx6ul-evk has already been converted to DM_VIDEO and also show the incorrect colors.
We haven't started to investigate this issue yet, but just wanted to report in case this is a known issue.
Does U-Boot logo appear with the correct color on your boards with eLCDIF controller?
Thanks,
Fabio Estevam
Hi Fabio,
On Thu, 23 Jan 2020 10:19:08 -0300 Fabio Estevam festevam@gmail.com wrote: ...
We are converting imx7d-sdb and imx6sx-sdb boards to DM_VIDEO, but we are seeing the Freescale logo with incorrect colors (white area is being shown blue, for example).
imx6ul-evk has already been converted to DM_VIDEO and also show the incorrect colors.
We haven't started to investigate this issue yet, but just wanted to report in case this is a known issue.
Do you have 'bits-per-pixel' property in your display node in DT? Is suitable CONFIG_VIDEO_BPPxx option enabled in your board_defconfig ?
Maybe the video uclass code doesn't have correct code four your bits-per-pixel configuration. Please also try with this patch [1] applied.
Does U-Boot logo appear with the correct color on your boards with eLCDIF controller?
I do not have a board with eLCDIF, so cannot say for sure.
Thanks, Anatolij
[1] https://gitlab.denx.de/u-boot/custodians/u-boot-video/commit/9a9cf3198e60749...
Hi Anatolij,
On Thu, Jan 23, 2020 at 11:36 AM Anatolij Gustschin agust@denx.de wrote:
Do you have 'bits-per-pixel' property in your display node in DT? Is suitable CONFIG_VIDEO_BPPxx option enabled in your board_defconfig ?
Yes, I have it, but it has the wrong value. It should be 24bpp instead of 16bpp.
I did the following change:
--- a/arch/arm/dts/imx6ul-14x14-evk-u-boot.dtsi +++ b/arch/arm/dts/imx6ul-14x14-evk-u-boot.dtsi @@ -4,7 +4,6 @@ */
display0: display@0 { - bits-per-pixel = <16>; + bits-per-pixel = <24>; bus-width = <24>;
display-timings {
And now I see the U-Boot strings showing with a correct white color.
However, the logo does not print and I have the following error:
Error: 32 bit/pixel mode, but BMP has 8 bit/pixel
How can I fix this mismatch?
Thanks
Hi Fabio,
On Fri, 24 Jan 2020 16:26:26 -0300 Fabio Estevam festevam@gmail.com wrote:
Do you have 'bits-per-pixel' property in your display node in DT? Is suitable CONFIG_VIDEO_BPPxx option enabled in your board_defconfig ?
Yes, I have it, but it has the wrong value. It should be 24bpp instead of 16bpp.
I did the following change:
--- a/arch/arm/dts/imx6ul-14x14-evk-u-boot.dtsi +++ b/arch/arm/dts/imx6ul-14x14-evk-u-boot.dtsi @@ -4,7 +4,6 @@ */
display0: display@0 {
bits-per-pixel = <16>;
bits-per-pixel = <24>; bus-width = <24>; display-timings {And now I see the U-Boot strings showing with a correct white color.
However, the logo does not print and I have the following error:
Error: 32 bit/pixel mode, but BMP has 8 bit/pixel
How can I fix this mismatch?
Now I see that bitmap rendering code for video-uclass driver doesn't support displaying 8bpp bitmaps on 24bpp frame buffer.
Before DM_VIDEO conversion cfb_console driver was used and it supports such rendering. I'm working on a fix for this. Thanks for testing!
-- Anatolij
Hi Anatolij,
On Sat, Jan 25, 2020 at 3:36 PM Anatolij Gustschin agust@denx.de wrote:
Now I see that bitmap rendering code for video-uclass driver doesn't support displaying 8bpp bitmaps on 24bpp frame buffer.
Before DM_VIDEO conversion cfb_console driver was used and it supports such rendering. I'm working on a fix for this. Thanks for testing!
Excellent, I will be glad to test it when you have it ready.
I think this is the last remaining issue with mxsfb DM_VIDEO conversion.
Thanks!
Hi Anatolij,
On Sat, Jan 25, 2020 at 3:36 PM Anatolij Gustschin agust@denx.de wrote:
Before DM_VIDEO conversion cfb_console driver was used and it supports such rendering. I'm working on a fix for this. Thanks for testing!
Have you been able to fix this?
Thanks
Hi Fabio,
On Mon, 3 Feb 2020 12:15:09 -0300 Fabio Estevam festevam@gmail.com wrote:
Hi Anatolij,
On Sat, Jan 25, 2020 at 3:36 PM Anatolij Gustschin agust@denx.de wrote:
Before DM_VIDEO conversion cfb_console driver was used and it supports such rendering. I'm working on a fix for this. Thanks for testing!
Have you been able to fix this?
I tried to extend the BMP code to fix this, but my testing with sandbox SDL end of last week has shown incorrect colors in 24bpp mode, and I didn't find the reason for it. I do not see what is wrong in the code, maybe there is some issue with sandbox SDL. So I've submitted some patches [1], [2], [3]. Could you please test them on mx6ul-14x14-evk ? Thanks!
[1] http://patchwork.ozlabs.org/patch/1233910 [2] http://patchwork.ozlabs.org/patch/1233911 [3] http://patchwork.ozlabs.org/patch/1233912
-- Anatolij
Hi Anatolij,
On Wed, Feb 5, 2020 at 2:00 PM Anatolij Gustschin agust@denx.de wrote:
I tried to extend the BMP code to fix this, but my testing with sandbox SDL end of last week has shown incorrect colors in 24bpp mode, and I didn't find the reason for it. I do not see what is wrong in the code, maybe there is some issue with sandbox SDL. So I've submitted some patches [1], [2], [3]. Could you please test them on mx6ul-14x14-evk ? Thanks!
Thanks for the patches.
I can see the logo colors correctly now, but there is some breakage now.
Please see the result at: https://ibb.co/0YKwTxJ
Thanks!
Hi Anatolij,
On Wed, Feb 5, 2020 at 2:45 PM Fabio Estevam festevam@gmail.com wrote:
Hi Anatolij,
On Wed, Feb 5, 2020 at 2:00 PM Anatolij Gustschin agust@denx.de wrote:
I tried to extend the BMP code to fix this, but my testing with sandbox SDL end of last week has shown incorrect colors in 24bpp mode, and I didn't find the reason for it. I do not see what is wrong in the code, maybe there is some issue with sandbox SDL. So I've submitted some patches [1], [2], [3]. Could you please test them on mx6ul-14x14-evk ? Thanks!
Thanks for the patches.
I can see the logo colors correctly now, but there is some breakage now.
Please see the result at: https://ibb.co/0YKwTxJ
Would you have a fix for this?
Thanks
Hi Fabio,
On Mon, 24 Feb 2020 09:38:04 -0300 Fabio Estevam festevam@gmail.com wrote:
Hi Anatolij,
On Wed, Feb 5, 2020 at 2:45 PM Fabio Estevam festevam@gmail.com wrote:
Hi Anatolij,
On Wed, Feb 5, 2020 at 2:00 PM Anatolij Gustschin agust@denx.de wrote:
I tried to extend the BMP code to fix this, but my testing with sandbox SDL end of last week has shown incorrect colors in 24bpp mode, and I didn't find the reason for it. I do not see what is wrong in the code, maybe there is some issue with sandbox SDL. So I've submitted some patches [1], [2], [3]. Could you please test them on mx6ul-14x14-evk ? Thanks!
Thanks for the patches.
I can see the logo colors correctly now, but there is some breakage now.
Please see the result at: https://ibb.co/0YKwTxJ
Would you have a fix for this?
it seems this is not video driver related, I didn't find a solution for this yet. First I guessed that this could be caused by removed lcd pads init in board code, but this is not the case. I tried to bisect but it is pretty difficult since the older released U-Boot versions do not boot on this board. I didn't have enough time to finish this, sorry. I hope we still can address this before release.
-- Anatolij
Hi Fabio,
On Mon, 24 Feb 2020 09:38:04 -0300 Fabio Estevam festevam@gmail.com wrote:
Hi Anatolij,
On Wed, Feb 5, 2020 at 2:45 PM Fabio Estevam festevam@gmail.com wrote:
Hi Anatolij,
On Wed, Feb 5, 2020 at 2:00 PM Anatolij Gustschin agust@denx.de wrote:
I tried to extend the BMP code to fix this, but my testing with sandbox SDL end of last week has shown incorrect colors in 24bpp mode, and I didn't find the reason for it. I do not see what is wrong in the code, maybe there is some issue with sandbox SDL. So I've submitted some patches [1], [2], [3]. Could you please test them on mx6ul-14x14-evk ? Thanks!
Thanks for the patches.
I can see the logo colors correctly now, but there is some breakage now.
Please see the result at: https://ibb.co/0YKwTxJ
Would you have a fix for this?
I've tested on mx6ul-14x14-evk, with current U-Boot master I do not see this problem any more.
-- Anatolij
Hi Anatolij,
On Mon, Jun 29, 2020 at 4:31 AM Anatolij Gustschin agust@denx.de wrote:
I've tested on mx6ul-14x14-evk, with current U-Boot master I do not see this problem any more.
Excellent! I saw Ye Li's patches that fixed the problem.
Thanks
Hi Fabio,
On Thu, Jan 23, 2020 at 3:19 PM Fabio Estevam festevam@gmail.com wrote:
Hi,
We are converting imx7d-sdb and imx6sx-sdb boards to DM_VIDEO, but we are seeing the Freescale logo with incorrect colors (white area is being shown blue, for example).
We had a similar issue when mxsfb driver tried to use 18-bit elcdif bus in 24-bit mode.
imx6ul-evk has already been converted to DM_VIDEO and also show the incorrect colors.
We haven't started to investigate this issue yet, but just wanted to report in case this is a known issue.
Does U-Boot logo appear with the correct color on your boards with eLCDIF controller?
Thanks,
Fabio Estevam
Hi Oleksandr,
On Thu, Jan 23, 2020 at 12:46 PM Oleksandr Suvorov cryosay@gmail.com wrote:
We had a similar issue when mxsfb driver tried to use 18-bit elcdif bus in 24-bit mode.
Is there a patch to fix this problem?
Does U-Boot logo appear correctly in colibri_imx7 and colibri_imx6ull?
Thanks
participants (3)
-
Anatolij Gustschin -
Fabio Estevam -
Oleksandr Suvorov