@george
Nice, I'll waitting for good news.

@george So is it possible to disable hardware decoding in firefox， and this may fix this issue?

I'll try it out.

@george
I already tested.

cat  /proc/driver/rtc

works quite well, but its UTC time.

after

timedatectl set-local-rtc 1 --adjust-system-clock

System dateime will sync to UTC with out +8 beijing region.

Is it possible to have a fedora 40 system image?
Ubuntu 24.04 is fine but snap sucks.

Fedora have offical arm64 version:
https://alt.fedoraproject.org/alt/

pinebook pro can also install fedora
https://nullr0ute.com/2021/05/fedora-on-the-pinebook-pro/

I tried to make a fedora live boot system like here said:
https://cool-pi.com/topic/222/customize-any-linux-distro/6

but system can't boot up with black screen.

But the way. Will cool pi have EDK2 UEFI support?
https://github.com/edk2-porting/edk2-rk3588

Since Chinese is my native language, I will write in Chinese. You can use ChatGPT or Google Translate to translate and understand this.

首先感谢论坛里的 George，还有淘宝客服，以及 B站的“大法师”（Jack）对各种问题的热心回答。

接下来说说感想：

1，笔记本的做工比想象中的要好很多，用的模具和 Chuwi gemibook X pro 是同一款，可以看得出来是在那个机器的基础上进行了修改而来，除了机器内部有点空，让打字键盘感觉有“空腔”的感觉之外别的没什么不好。我觉得唯一不好的地方就是键盘没有背光，这个有点可惜，明明主板上有插背光的排线。还有就是触摸板不是玻璃的，有点影响质感。

2, 笔记本默认的屏幕面板是华星光电的，色域说实话很一般，NTSC 50%，而且明显发蓝，观感只能说“可以忍受”，但是这个笔记本可以很方面的换屏幕，扣开 B 面拆了屏幕就可以换了。我就更换了一个 100% SRGB 色域的 BOE 的 1080P 的屏幕，型号NV140FHM-N66，观感一下子好了很多。原来想直接换 4K 的，但是怕续航顶不住，就没换。换 4K 屏幕也是需要更换 40pin 的 edp 排线的。

3, 笔记本的性能十分可以，跑 Linux 日常使用的话和我的 Intel 笔记本差距不太大，RK3588 的确比较能打，而且重要的一点是这个笔记本是少有的在 Linux 下可以实现“休眠”功能的。之前玩过 Pinebook Pro, 性能且不说，光一个系统休眠功能就折腾了好几年也没解决。对于一个 Linux 笔记本来讲，能“合盖休眠”，就大大提升了便利度。

4, 默认的系统是 Ubuntu 24.04，官方已经调整好了 GPU 驱动，到手大部分功能都是可用的。虽然也有 Armbian 和针对俄罗斯的 Alt Linux，但是 Ubuntu 近几年强推 Snap 让人很恶心，我这个也是删了半天才把 snap 删光，希望官方能提供 Fedora这样更为接近上游和 Gnome 原生的发行版。我自己尝试创建了一个 USB 的 Fedora live 盘，启动黑屏。顺便不知道未来能不能支持那个 UEFI 的启动固件。

5, 笔记本的续航看使用需求，虽然是 ARM，但是 RK3588 本身就是电老虎，功耗全开的话不比一些低压 U 功耗差，官方在镜像里直接把调度策略拉满写成 performance，我测试了一下 ondemand 之类的发现也没省多少电，估计没什么影响，续航轻度使用大概能有 4-5 个小时吧。

接下来说说目前遇到的问题，方便他人检索我就挨个单独发帖吧：

1， RTC 时钟无法保存
https://cool-pi.com/topic/567/rtc-battery-on-board/1

2，Firefox 播放视频会卡死
https://cool-pi.com/topic/568/firefox-deb-version-freezed-when-try-to-play-video/1

Ubuntu 24.04 with firefox deb version from mozilla ppa.

Everything works fine except video playing on youtube .

whole firefox browser will freeze and I had to kill it.

Here are some logs from terminal:

GFX1 TextureHost creation failure type=4
VideoBridgeParent receives IPC close with reason=AbnormalShutdown

But video playing works well under chromium browser. Or maybe works well on snap version firefox? I can't remember.

I saw there is an RTC battery slot on mainboard.
Is it possible to add a RTC battery on it?

cool pi laptop with ubuntu 24.04 seems won't save datetime after powered off.

checked /proc/driver/rtc it works fine but won't sync to system datetime.

@yaitoro

https://cool-pi.com/topic/56/how-to-buy-coolpi-4b-board

There are official shops list on website.
You can check thess out.
BTW. It is possible to charge with PD typec port while laptop is power on.

Just found some related scripts in /etc/rc.local.

Cool Pi CM5 Laptop 运行默认 Ubuntu 24.04 镜像，觉得整机功耗有点高，没有体现出 Arm 笔记本的续航又是，看了下发现 cpufreq driver 是 cpufreq-dt ，而且默认调度是 performance. 后者是可以改一下，但对于 rk3588s 来说更好的 cpufreq driver 不应该是 cpufreq-rockchip 么，这个如何修改？需要自己编译一下内核？

@Momo-0 Thank for your reply.
I think the point is pcie 3.0 /4.0
maybe pcie 3.0 version nvme ssd should be okay.

@george Thanks for your info.
Just subscribed on bilibili.

还有个问题很好奇问一下，屏幕面板的拆卸简单吗？B面是卡扣还是双面胶？
以及我看到你们说4K面板驱动没问题，但是结构有问题，是不是面板因为大小尺寸不一样装不进去导致的。

我也看到论坛里有个帖子文 edp 排线接口的情况，你们说是原生的。那支持 2880x1800 90hz 这种高刷屏幕吗？还是会限制在 60hz。

总之本子到手后我先升级到 24.04 用一下看看，也期待 6.1 内核的进度。

@george So good to hear that.
I guess Nvme with PCIe 4.0 may have some compatible issue.
I will try to install PCIe 3.0 one.

@Momo-0 Hi Which brand SSD are you using which effected this suspend sleeping issue？

I know SN570 works fine but this quite hard to get one now. There is only SN580 on sale.

Already purchased on taobao. And told don't forget my gift( 40Pin cable)

BTW, I'd like to have a nvme ssd for storage. Could you tell me which brand have best compatible?

Thanks.

@george Nice , I will consider to get one.
Actually the only con of this laptop is the screen.
Hope the "replaceable panel list" and "guide video" will release soon.

@george Many thanks for your kindly reply.
Does 32GB+ 64G version is 64GB emmc or nvme?
Can Linux OS can be boot from nvme or emmc/tf only?

Can laptop charge from typec port?

I saw there is a new version Cool pi laptop v20. when will it be released?
You said there is touch version of laptop .Does it on sale right now?

@george
Emmm
That's not a good display panel.
Can I replace a better panel by myself? Will cool pi laptop support it? Any 30Pin DP LCD？
Or there is a ”WhiteList“ in drm panel which Cool pi supported?

Another question. Will cool pi laptop support Linux distor like Fedora / Arch / Debian? or Deepin? Ubuntu is the only option right now?

I love cool pi laptop. And like to play with it as an ARM LINUX Laptop, it seems much better than Pinebook Pro.

Where Can I get this cool laptop on taobao? Is there an offical taobao shop? i lived in China.

@george nice to hear that.
It seems cool pi laptop is much better than CM4 laptop or pinebook.
Suspend is quite important for an Arm laptop

How is the battery life?
How is battery drain while Cool pi laptop in sleep mode overnight?

@george Thanks for your reply.

Could you tell me what's LCD panel is current coolpi laptop using?t.